Area-1 2
Area-1 2
Area-1 2
1
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(A)
a. inlet valve
b. piston
c. plunger
d. discharge valve
2. What do you call a device that forces more fuel mixture into the cylinders
than would be drawn in under normal atmospheric conditions, thus making
possible greater power output with the same piston displacement.
a. carburetor
b. supercharger
c. throttle
d. venturi
5. The thermal efficiency and mechanical efficiency of an engine are 40% and
72%, respectively. Determine the power equivalent of the fuel used if the
brake horsepower is 1.35 hp.
a. 2.0 kW
b. 4.0 kW
c. 2.5 kW
d. 3.5 kW
2
6. A belt delivers a tangential force of 150 N on a half meter radius pulley
at a speed of 380 rev/min. What will be the power?
a. 2.0 kW
b. 0.5 kW
c. 3.0 kW
d. 3.5 kW
a. X = High; Y = Vendors
b. X = Low; Y = Vendors
c. X = Low; Y = Consumers
d. X = High; Y = Consumers
a. 2.9 hp
b. 3.1 hp
c. 3.8 hp
d. 2.5 hp
10-12. A 1000-hectare farm shall be planted with hybrid corn, with the
following operations being mechanized:
Operation No of Passes Maximum Number of Days Required to Complete
Operation
Land Preparation:
Plowing 1 90 days
Harrowing 2 75 days
Planting 1 75 days
Spraying as required
Harvesting 1 90 days
3
10. Estimate the number of tractors needed.
a. 5
b. 6
c. 7
d. 8
a. 2
b. 3
c. 4
d. 5
12. Assuming 100 days of maturity, what is the cycle time in days?
a. 270
b. 229
c. 291
d. 250
13. In management, this is doing the right things.
a. Efficiency
b. competence
c. reliability
d. effectiveness
14. Given the following data for a four-wheel tractor equipped with a three-
bottom disk plow.
Mass:
Tractor, kg 3800
Carried by the front wheel, kg 1600
Carried by the rear wheel, kg 2050
Wheel base, mm 3168
Drawbar dynamometer reading, kg 602
Angle between the horizontal and the line of draft 15O
Assuming dynamic condition of equilibrium while plowing, calculate the weight
(in kg) transferred from the front wheels if the drawbar clearance is 48 cm
from the ground level and the plane 16 cm horizontally from the soil vertical
reactions at the wheels. Neglect other minor forces acting on the tractor.
a. 92
b. 93
c. 94
d. 95
a. Lighter
b. thinner
c. heavier
d. a or b
4
16. The windmill for water pumping is characterized as:
17. If money is worth 8.7% simple interest, how long (in months) from today
will the value become P37,501.50 of a debt of P36,000.50 due 6 months from
today?
a. 0
b. 2
c. 4
d. 12
a. AMTEC
b. PhilSCAT
c. AMDP
d. PCARRD
a. payback period
b. internal rate of return
c. benefit-cost ratio
d. net present value
a. up to 3 inches
b. up to 6 inches
c. up to 12 inches
d. up to 18 inches
21. Bend downward of the point of the share to make the plow penetrate the
soil to the proper depth is:
a. tilt angle
b. disc angle
c. horizontal suction
d. vertical clearance
a. disc diameter
b. depth of cut
c. disc angle
d. all of the above
5
SWEff
23. In the equation C = 10 , W is width of cut expressed in:
a. ft.
b. m
c. km
d. mile
a. ft.
b. ft/min
c. meters
d. meters/min
28. The power unit for driving centrifugal pumps for household use is
usually:
a. electric motor
b. gasoline engine
c. diesel engine
d. kerosene engine
29. The most recently developed system of harvesting and threshing of rice
is:
a. mechanical harvesting & threshing
b. combining
c. stripping
d. all of the above
6
30. A machine that cuts standing crop, conveys the cut crop to one side, and
lays them down in an orderly manner is called:
a. sickle
b. reaper-windrower
c. reaper-binder
d. stripper
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr
33. How many times greater is the power of a carabao over man?
a. 0.1
b. 1.0
c. 10
d. 100
34. The fertility of a particular field is such that maximum corn yield is
obtained with a population of 54,000 plants per hectare. A checkrow corn
planter is used which discharges 2 seeds/hill. Average emergence is 85%.
Row spacing = hill spacing. Find the spacing:
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m
35. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
7
What is the seeding rate at ¾ adjustment?
a. 60 kg/ha
b. 70 kg/ha
c. 80 kg/ha
d. 90 kg/ha
36. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field is 42
tons. The operating speed is 4.8 kph. The time for turning on the headland
at the ends of the 500-m field is 15 seconds. Find the actual field capacity:
a. 1.5 ha/hr
b. 2.5 ha/hr
c. 2.0 ha/hr
d. 3.0 ha/hr
37. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The maximum
draft and percent increase in draft due to speed are:
a. 45 hp
b. 50 hp
c. 55 hp
d. 60 hp
a. 102 gms/load
b. 160 gms/load
c. 200 gms/load
d. 240 gms/load
a. 77%
b. 80%
c. 83%
d. 86%
8
40. Select two consecutive farm operations which when done mechanically can
increase cropping intensity:
a. planting – spraying
b. irrigation – weeding
c. harvesting – plowing
d. harvesting – threshing
42. The cutting mechanism most commonly employed by reapers and combines is:
a. Production/postharvest machinery
b. Irrigation and drainage
c. agricultural structures
d. engineering materials
a. 0.09 ha/hr
b. 0.5 ha/hr
c. 0.36 ha/hr
d. 1.5 ha/hr
9
47. A field measuring 45 m X 90 m is to be prepared using a 1-m upland power
tiller at a speed of 3 kph. Assume a 10% overlap between passings and 9
seconds turnaround time at the end of each pass. Determine actual field
capacity when tilling is done along the longer field direction:
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
a. width of planter
b. forward speed of planter
c. No. of seeds per hill
d. efficiency of planter
49. Type of soil working parts utilized by push-type weeders for wetland
operation:
a. blade type
b. tine type
c. rotary type
d. all of the above
a. nozzle discharge
b. effective working width
c. walking speed
d. application rate
51. Which of the following does not belong to the group of positive
displacement pumps?
a. lift pump
b. force pump
c. rotary pump
d. propeller pump
a. 5 mm/day
b. 10 mm/day
c. 15 mm/day
d. 20 mm/day
53. If the specific yield of a particular well is 3 gpm/ft drawdown and the
discharge rate of the pump is 30gpm, the total drawdown is:
a. 1 ft
b. 3 ft
c. 10 ft
d. 30 ft
10
54. It is made by partial combustion of carbonaceous substances like coal and
wood.
a. natural gas
b. propane
c. LPG
d. producer gas
a. 248
b. 156
c. 62
d. 124
56. How much did the farmer actually paid for his purchase?
57. How many degrees has the crankshaft rotated if the piston has traveled
4.25 cm with respect to its top dead position in a 3.5” by 5” diesel engine?
a. 60O
b. 45O
c. 90O
d. 75O
11
59. What is the depreciation factor per year of a hand tractor that is bought
at P150, 000.00, if it has no more value at the end of the fifth year?
a. 25,000 pesos/year
b. 30,000 pesos/year
c. 60,000 pesos/year
d. 15,000 pesos/year
60. What is the depreciation factor per year, of a hand tractor that is
bought at 60,000 Pesos, if it has no more value at the end of the fifth year?
a. 5000 pesos/year
b. 10,000 pesos/year
c. 12,000 pesos/year
d. 6000 pesos/year
a. 48,000 pesos
b. 12,000 pesos
c. 24,000 pesos
d. 36,000 pesos
a. 0.25 ha/hr
b. 0.3 ha/hr
c. 0.35 ha/hr
d. 0.4 ha/hr
64. Before the adoption of mechanized harvest and postharvest operations for
rice, field losses were:
a. 5 – 15%
b. 10 – 27%
c. 10 – 37%
d. 20 – 30%
67. Primary tillage equipment that cuts the soil to a depth of 6 to 18 inches
is called:
a. moldboard plow
b. subsoiler
c. chisel plow
d. spiral plow
68. The perpendicular distance between the wing and point of the share
determines the:
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow
QxH
70. In the equation for horsepower, Hp = , H is total head in:
3960xEff
a. ft.
b. ft/min
c. meters
d. meters/min
71. The power unit for driving centrifugal pumps for household use is usually:
a. electric motor
b. gasoline engine
c. diesel engine
d. kerosene engine
72. A machine that cuts standing crop, conveys the cut crop to one side, and
lays them down in an orderly manner is called:
a. sickle
b. reaper-windrower
c. reaper-binder
d. stripper
14
a. two
b. three
c. four
d. five
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr
76. The fertility of a particular field is such that maximum corn yield is
obtained with a population of 54,000 plants per hectare. A checkrow corn
planter is used which discharges 2 seeds/hill. Average emergence is 85%. Row
spacing = hill spacing. Find the spacing:
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m
a. 1985
b. 1990
c. 1995
d. 2000
a. AMTEC
b. PhilSCAT
c. AMDP
d. PCARRD
a. Shall
b. Should
c. a or b
d. none of the above
a. DA AO 11 S2001
b. PRC BR 05 S2002
c. RA 7394
d. RA 8559
83. Agency of the government charged with the development of the Philippine
National Standards (PNS):
a. BOAE-PRC
b. NAFC-DA
c. BPS-DTI
d. DOH
84. Two persons are threshing by “Hampasan” method. What is the total human
power generated by the two persons in one day if they work at an average of 6
hours?
a. Furrow crown
b. Furrow slice
c. Furrow wall
d. None of the above
a. straw outlet
b. oscillating screen outlet
c. blower outlet
d. All of the above
87. Grain-straw ratio requirement for testing a rice thresher ranges from .
a. 0.35 to 0.50
b. 0.50 to 0.65
c. 0.65 to 0.80
d. All of the above
88. Ignition of fuel in a gasoline fuel engine usually starts when the piston
is .
16
a. at the top dead center
b. moving downward the bottom dead center
c. approaching the top dead center
d. None of the above
a. belt horsepower
b. brake horsepower
c. drawbar horsepower
d. indicated horsepower
90. One way of increasing engine power is to force more air into the cylinder
so that more power can be produced from each power stroke. This process which
uses a type of air compression device powered by the engine crankshaft is
called:
a. turbocharging
b. supercharging
c. power charging
d. air charging
a. 77%
b. 80%
c. 84.4%
d. 86%
a. Land grading
b. Tillage
c. Earth moving
d. None of the above
a. Bulldozing
b. Chiselling
c. Subsoiling
d. None of the above
17
95. The factors that affect the draft of the plow:
a. Soil condition
b. Hitch to the tractor
c. Topography
d. All of the above
a. 314 kg
b. 253 kg
c. 157 kg
d. None of the above
97. If the plow above has an average speed of 5 km/hr, what is its drawbar
horsepower?
a. 4.6 hp
b. 3.4 hp
c. 5.1 hp
d. None of the above
98. The effective field capacity of the rotary tiller tilling theoretically at
0.4 ha/hr for efficiency of 85% is .
a. 0.34 ha/hr
b. 0.24 ha/hr
c. 0.43 ha/hr
d. None of the above
99. The effective field capacity of 2 moldboard plows having 25-cm width each
plowing at a speed of 7 km/hr for a field efficiency of 80% is .
a. 0.20 ha/hr
b. 0.28 ha/hr
c. 0.32 ha/hr
d. 0.32 ha/hr
a. Seeder
b. Weeder
c. Cultivator
d. None of the above
18
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(B)
1. The ratio between the numbers of weeds removed by the weeder to the number
of weeds present per unit area.
a. Weeding index
b. Weeding rate
c. Weeding capacity
d. None of the above
2. When a machine is driven directly from the shaft of a power source, the
power is transmitted using .
a. gear drive
b. sprocket and chain drive
c. direct drive
d. None of the above
3. If 10-Hp engine drive has a belt capacity rating of 4.5 hp per belt, how
many pieces of belts are needed for the drive?
a. 1 to 2 belts
b. 2 to 3 belts
c. 4 to 6 belts
d. None of the above
a. 6 in.
b. 11 in.
c. 14 in.
d. None of the above
5. What is the recommended belt size for the B-type V-belt needed for the
drive above, if its center distance is 60 in.?
a. B169
b. B144
c. B196
d. None of the above
a. ½ in.
b. ¾ in
c. 1 in
d. None of the above
19
7. A diesel engine that operates at 2500 rpm will be used to drive an
irrigation pump, which should turn at 1000 rpm. The pulley diameter for the
pump is 4 inches. What is the recommended pulley diameter for the engine?
a. 2 in.
b. 4 in.
c. 10 in.
d. None of the above
8. The ratio between the mass of fuel consumed per unit time and the
corresponding power measured.
a. 14.3 hp
b. 23.4 hp
c. 34.5 hp
d. None of the above
10. How many hectares of the farm above a tractor can plow in one day (16
hours operation) if it is pulling a three-disk plow? Assume a total time loss
of 30%.
a. 2 ha/day
b. 4 ha/day
c. 6 ha/day
d. None of the above
11. How many days would be required to plow the entire 500-hectare farm above
if ten units of the same kind of tractor and plow will be used?
a. 8.3 days
b. 12.5 days
c. 15.4 days
d. None of the above
12. Referring to the items above, how much fuel a tractor consumes in liters
per 16-hours day if the specific fuel consumption is 1 lb/dhp-hr and the
specific gravity of the fuel is 0.8?
a. 1546 liters
b. 130.0 liters/hr
c. 95.1 liters/hr
d. None of the above
13. Calculate the drawbar hp required to pull a plow with 3X14-in bottoms at
the rate of 3.25 mph if the specific draft is 8 psi and depth of cut is 7
inches.
20
a. 6.8 hp
b. 13.6 hp
c. 20 hp
d. 27.2 hp
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
a. < 4 hp
b. < 5 hp
c. < 6 hp
d. < 7 hp
16. A 1.2-m wide floating tiller is used for rotary tilling/puddling a 24-m X
42-m wetland paddy field. The average speed of travel is 3 kph and turning at
the headlands takes 10 seconds. What is the field efficiency if the field is
worked along its length?
a. 71 %
b. 74 %
c. 79 %
d. 84 %
a. 77%
b. 80%
c. 83%
d. 86%
18. The fertility of a particular field is such that maximum corn yield is
obtained with a population of 54,000 plants per hectare. A checkrow corn
planter is used which discharges 2 seeds/hill. Average emergence is 85%. Row
spacing = hill spacing. Find the spacing.
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m
21
19. If there are 2.7M animals in the farms, 70 – 74 % of them are used for
draft work and 12M ha of agricultural lands, the contribution of animal power
in the farm is:
a. 0.12 hp/ha
b. 0.16 hp/ha
c. 0.21 hp/ha
d. 0.23 hp/ha
a. 77%
b. 80%
c. 83%
d. 86%
21. The projection of cash inflow and outflow of a farm to estimate the
incremental net benefit of the life of the project is known as:
a. Farm budget
b. Farm plan
c. Farm inventory
d. Farm contract
24. A transaction by your company this year involving the repayment in cash
of a portion of the long term loan of the company in the amount of P
70,000.00 would have the following effect:
a. deflation
b. devaluation
c. incision
d. inflation
22
26. A six-bottom moldboard plow is to be used to plow a heavy soil. How many
scrapers are there in the plow?
a. 2 c. 6
b. 4 d. None of the above
27. It is a part of the plow that connects the plow bottom and the frame.
a. Mild steel
b. Cold rolled steel
c. Spring steel
d. None of the above
a. Mild steel
b. Carbon steel
c. Cast iron
d. None of the above
30. When a disk harrow consists of a front and rear gangs and is centrally
positioned with the tractor, it is classified as ?
31. When a disk harrow consists of a front gang only and is centrally
positioned with the tractor, it is classified as ?
32. When a disk harrow consists of a front and/or rear gangs and is not
centrally positioned with the tractor, it is classified as ?
33. The angle between the axis of the set of disks and the line perpendicular
to the direction of the implement.
a. Disk angle
b. Gang angle
c. Implement angle
d. None of the above
23
34. The horizontal seed plate is used for:
a. row-crop drill planter
b. hill-drop planter
c. solid drill planter
d. broadcaster
35. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing to be adjusted to 14 inches. Groundwheel diameter
is 1.22 m.
Discharge (gm)
Seeding
(9 rows for 10 revolutions of
Adjustment
groundwheel)
¼ Open 140
½ Open 460
¾ Open 740
Full Open 1,100
What is the seeding rate at ¼ open seeding adjustment?
a. 5 kg/ha
b. 11 kg/ha
c. 8 kg/ha
d. 20 kg/ha
36. Planters designed to plant seeds continuously in rows with row spacing
greater than 36 cm is called:
a. furrow opener
b. metering device
c. seed tube
d. double-disc closer
a. furrow opener
b. metering device
c. seed tube
d. furrow closer
39. A spark ignition engine was tested with BHP output of 9.6 horsepower. If
the ambient condition during the test is 30°C ambient air temperature, what
is the corrected BHP of the engine? The total atmospheric air condition is
1011 mbar.
a. 7.78 hp
b. 6.78 hp
c. 9.78 hp
d. 8.78 hp
24
40. Two kilogram of rice is to be prepared for cooking. Estimate the time
required to cook it.
a. 10.92 min
b. 11.92 min
c. 12.92 min
d. 13.92 min
41. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
Discharge (gm)
Seeding
Adjustment (9 rows for 10 revolutions of
groundwheel)
¼ Open 140
½ Open 460
¾ Open 740
Full Open 1,100
a. 25 kg/ha
b. 68 kg/ha
c. 38 kg/ha
d. 79 kg/ha
a. row spacing
b. ave. seed emergence
c. forward speed
d. groundwheel diameter
45. The fertility of a particular field is such that maximum corn yield is
obtained with a population of 54,000 plants per hectare. A checkrow corn
planter is used which discharges 2 seeds/hill. Average emergence is 85%.
Row spacing = hill spacing. Find the spacing:
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m
25
46. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
Discharge (gm)
Seeding Adjustment
(9 rows for 10 revolutions of groundwheel)
¼ Open 140
½ Open 460
¾ Open 740
Full Open 1,100
What is the seeding rate at ¾ adjustment?
a. 60 kg/ha
b. 70 kg/ha
c. 80 kg/ha
d. 90 kg/ha
47. Two persons are doing the threshing operation by “Hampasan” method. What
is the total human power generated by the two persons in one day if they work
an average of 6 hours?
a. 2.22 Hp
b. 1.22 Hp
c. 0.22 Hp
d. 0.12 Hp
49. An engine was tested on a brake dynamometer at a speed of 2000 rpm. The
brake arm of the machine is 1.2 meters and it registers a load of 5 kg. What
is the shaft power of the engine?
a. 14.51 hp
b. 11.51 hp
c. 16.51 hp
d. 12.51 hp
a. width of planter
b. forward speed of planter
c. No. of seeds per hill
d. efficiency of planter
26
52. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
a. 60 kg/ha
b. 70 kg/ha
c. 80 kg/ha
d. 90 kg/ha
a. 0.62 m
b. 0.81 m
c. 0.71m
d. 0.92 m
54. A person is working for 4 hours in a farm harvesting. Estimate the power
that can be generated by the person in doing the job.
a. 0.13 hp
b. 0.33 hp
c. 0.53 hp
d. 0.43 hp
a. chemical control
b. biological control
c. mechanical control
d. a and b
a. herbicides
b. insecticides
c. fungicides
d. pesticides
a. 43.7
b. 746
c. 0.74
d. 1.356
a. 2.72
b. 1.41
c. 207.31
d. 414.6
62. A multi-sail type windmill for pumping water has a diameter of 6 ft and
the wind velocity is 10 mph. Estimate the actual power of this windmill.
a. 0.06
b. 0.77
c. 5.45
d. 2.42
63. A 1,000 lb horse working continuously for several hours and walking at a
rate of 2 ½ mph can develop how much power?
a. 1.33
b. 1.0
c. 0.67
d. 10
a. Walking-type tractor
b. Pedestrian tractor
c. Hand tractor
d. All of the above
65. Warranty period for hand tractor from the purchase of the machine.
28
a. 4 months
b. 6 months
c. 12 months
d. All of the above
a. 14-mm thick
b. 14 pieces of metals sheet in a stock
c. 14 pieces in one-inch thickness
d. None of the above
–
-
d. None of the above
a. Reliability of machine
b. Environment and safety
c. Cost of operation
d. All of the above
69. The development of a desirable soil structure for a seedbed does not
include:
70. Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow
71. Bend sideward of the point of the share to make the plow cut the proper
width is:
a. vertical clearance
b. horizontal suction
c. disc angle
d. tilt angle
72. The angle the disc of a disc plow makes with the direction of travel to
make it cut the proper width and allow it to rotate when moving forward is:
a. 15 – 25 degrees
b. 42 – 45 degrees
c. 55 – 60 degrees
d. 30 – 36 degrees
29
SWEff
73. In the equation C = , C is capacity expresses in:
10
a. m2/h
b. m2/day
c. ha/h
d. ha/day
a. chemical control
b. biological control
c. mechanical control
d. a and b
a. herbicides
b. insecticides
c. fungicides
d. pesticides
79. Which of the following belong to the group of variable displacement pump?
a. centrifugal pump
b. mixed flow pump
c. air lift pump
d. all of the above
QxH
80. In the equation for horsepower, Hp = , Eff is:
3960xEff
a. efficiency of pump
b. efficiency of transmission
c. efficiency of prime mover
d. efficiency of the system
30
81. The direct type of power transmission system has: (code 52)
31
a. 90% Eff
b. 95% Eff
c. 98% Eff
d. 100% Eff
a. 77%
b. 80%
c. 83%
d. 86%
83. Select two consecutive farm operations which when done mechanically can
increase cropping intensity:
a. planting – spraying
b. irrigation – weeding
c. harvesting – plowing
d. harvesting – threshing
a. 735.49
b. 740.12
c. 760.00
d. None of the above
85. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field is 42
tons. The operating speed is 4.8 kph. The time for turning on the headland
at the ends of the 500-m field is 15 seconds. Find the field efficiency.
a. 78%
b. 83%
c. 87%
d. 90%
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
a. 77%
32
b. 80%
c. 83%
d. 86%
a. 0.62 m
b. 0.81 m
c. 0.71m
d. 0.92 m
91. Indicates the maximum load that can be safely carried by an electric
motor under continuous operation:
a. duty rating
b. service factor
c. hp rating
d. current rating
92. The piston goes up and the two valves remain closed is termed:
a. intake
b. compression
c. power
d. exhaust
93. Type of transmission system where the speed ratio depends on the teeth
ratio of the two members:
a. gears
b. chain and sprocket
c. belt and pulley
d. a and b
94. Determine the linear speed (kph) of a 2-wheel tractor given the following
specifications:
95. What is the wind power of a windpump having 5 meter diameter rotor at a
wind speed of 4 m/sec?
a. 733.6 watts
b. 753.6 watts
c. 713.6 watts
d. 783.6 watts
a. start of intake
b. start of compression
c. end of intake
d. end of compression
98. The thermal efficiency range for internal combustion engines is:
a. 25 – 36%
b. 36 – 50%
c. 50 – 75%
d. 75 – 90%
a. direct coupling
b. chain and sprocket
c. belt and pulley
d. gears
34
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(C)
1. What is the wheel axle power of a four-wheel tractor whose engine power is
equal to 150 Hp. The mechanical efficiency is 85%.
a. 117.5 hp
b. 127.5 hp
c. 137.5 hp
d. 157.5 hp
a. 2.4 A
b. 4.8 A
c. 7.2 A
d. 9.6 A
a. 25 – 30
b. 30 – 36
c. 36 – 50
d. 50 – 90
4. Calculate the maximum starting current for a ½-hp, 220-volt electric motor
with an H motor code (6.3 – 7.1 KVA/Hp).
a. 14 A
b. 15 A
c. 16 A
d. 17 A
a. 20%
b. 40%
c. 39%
d. 50%
6. Cleaning units for rice husk gasifier to remove gaseous pollutant and
solid particles while cooling the gas at the same time.
a.Cyclone separator
b.Fabric filter
c.Scrubber
d.All of the above
35
7. Seed produced by the Seed Production and Health Division form UP and
certified 100% pure by the Seed Quality Control Services of the Bureau of
Plant Industry.
a. Certified Seeds
b. Registered Seeds
c. Foundation Seeds
d. Breeder Seeds
8. 1 cv is equal to watts
a. 735.50
b. 740.12
c. 760.00
d. None of the above
9. If you invest P50,000 today at 9% interest, how much time is required for
the investment to be worth P125,000?
a. 9 years
b. 10 years
c. 11 years
d. 12 years
a. binders
b. fasteners
c. holders
d. clippers
12. Determine the time in hours to plow a 3-ha field using a 15-cm animal-
drawn plow at a speed of 4 kph and efficiency of 75%
a. 56 hrs
b. 66 hrs
c. 76 hrs
d. 86 hrs
13. Determine the no. of days (8hrs/day) to plow a 10-ha field using a 3-
bottom moldboard plow drawn by a 4-wheel tractor at a speed of 5 kph and
filed efficiency of 76%. Width of cut of one bottom is 33 cm.
a. 2.75 days
b. 3.0 days
c. 3.3 days
d. 3.6 days
36
14. Planter designed to plant seeds in rows and in hills is called
15. The most recently developed system of harvesting and threshing of rice is:
a. mechanical harvesting & threshing
b. combining
c. stripping
d. all of the above
16. Which of the following agencies does not belong to the Department of
Agriculture?
a. BPRE
b. BPI
c. AMMDA
d. RAEG
a.01 - 99
b.101 - 199
c.201 - 299
d.301 – 399
a. single
b. double
c. triple
d. None of the above
22. An engine valve arrangement wherein the intake and exhaust valves are
located on one side of the cylinder block.
a. I - head arrangement
b. L- head arrangement
c. X- head arrangement
d. None of the above
a. Fixed drawbar
b. Swinging drawbar
c. Link drawbar
d. All of the above
25. Acceptable level wheel slip for two-wheel drive tractor on a tilled or
soft soil.
a. 7 - 11%
b. 10 - 15%
c. 16 - 20%
d. None of the above
26. The power required in driving power harrows, rotary tiller, and other
related equipment.
a. Brake horsepower
b. Drawbar horsepower
c. Power takeoff horsepower
d. All of the above
38
a. 102 gms/load
39
b. 160 gms/load
c. 200 gms/load
d. 240 gms/load
29. Determine the size of the diesel engine to be used for a 4 inches X 4
inches centrifugal pump. Pump discharge is 200gpm. Total head is 24 ft. Pump
efficiency is 55%. V-belt efficiency is 95%. And air-cooled diesel engine
delivery rating is 70%.
a. 1.6 hp
b. 2.4 hp
b. 3.3 hp
d. 4.7 hp
30. Which of the following does not belong to the group of positive
displacement pumps?
a. lift pump
b. force pump
c. rotary pump
d. propeller pump
a. Indicated horsepower
b. Brake horsepower
c. Rated horsepower
d. Belt horsepower
a. Flywheel
b. Fuel injector
c. Carburetor
d. Spark plug
34. Device that connects and disconnects power input to the power output.
a. Clutch
b. Gear
c. Pulley
d. None of the above
a. 40 to 70 psi
b. 75 to 125 psi
c. 150 to 410 psi
d. None of the above
36. The Japanese combine is characterized as:
40
a. low power & hold-on feeding
b. low power & throw-in feeding
c. high power & hold-on feeding
d. high power & throw-in feeding
37. This mixture of 90% gasoline and 10% alcohol is used as a fuel for spark
ignition engine.
a. methyl ester
b. ethyl ester
c. gasohol
d. normal heptane
38. This pump uses the energy of a downward-flowing stream of water to lift a
portion of the water to a higher level.
a. centrifugal pump
b. waterwheel
c. hydraulic ram
d. water turbine
a. methanol
b. ethanol
c. tetraethyl lead
d. gasohol
40. A secondary tillage operation which pulverizes, smoothens, and packs the
soil during seedbed preparation and also controls weeds.
a. Harrowing
b. Listing
c. Chiselling
d. None of the above
41. The power take-off rpm of a lawn mower and garden ride-on tractors.
a. 1000 rpm
b. 540 rpm
c. 2000 rpm
d. None of the above
42. Power machines that cut sheet metals, angle bars, round bars, or square
bars by shear action of two moveable blades that are made to move by
maximized leverage.
43. In a 200 ha corn project, the fields have to be tilled in 30 days. What
is the width of the heavy offset disk harrow should be selected if the
41
tractor to
42
be used operates at 3.125 mph. Assume a 75% field efficiency and an 8 hour
working day:
a. 2.22
b. 4.33
c. 10.11
d. 8.66
44. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg. Find
the distance traveled to plow the field.
a. 66.67 km
b. 133.33
c. 200 km
d. 266.67 km
45. Bend downward of the point of the share to make the plow penetrate the
soil to the proper depth is:
a. tilt angle
b. disc angle
c. horizontal suction
d. vertical clearance
a. 3 men X 4 days
b. 6 men X 2 days
c. 12 men X 1 day
d. all of the above
48. When heat alone is used to melt and flow metal together, the process is
known as .
a. Soldering
b. Pressure welding
c. Fusion Welding
d. None of the above
49. Component parts of a seeder that is used to calibrate the seed metering
device.
a. Furrow wheel
b. Ground wheel
c. Support wheel
d. All of the above
50. A central part of a plow where the share, moldboard, and landside are
attached.
43
a. Frame
b. Frog
c. Shank
d. None of the above
a. air cooled
b. water cooled
c. air and water cooled
d. All of the above
52. Seed produced from breeder seeds and distributed to all members of the
Seed Net and selected seed producers in every province for further
multiplication.
a. Certified Seeds
b. Registered Seeds
c. Foundation Seeds
d. Breeder Seeds
54. Angle in the soil surface plane perpendicular to the direction of travel
between the tool axis and the line which is perpendicular to the direction of
travel.
a. Tilt angle
b. Side angle
c. Lift angle
d. None of the above
55. Seed produced from Foundation Seed and being distributed to all
accredited seed producers for mass production.
a. Certified Seeds
b. Registered Seeds
c. Foundation Seeds
d. Breeder Seeds
56. Seed produced from the Registered Seed by accredited seed producers and
distributed to farmers for commercial production.
a.Certified Seeds
b.Registered Seeds
c.Foundation Seeds
d.Breeder Seeds
57. Machine operation in which there are two or more machines performing
their own respective operation simultaneously.
44
a. Individual operation
b. Parallel operation
c. Series operation
d. None of the above
58. Machine operation in which there are two or more machines performing
their own respective operation in sequence.
a. Individual operation
b. Parallel operation
c. Series operation
d. None of the above
59. Machine operation in which one or more similar machines are operated as
one unit.
a. Individual operation
b. Parallel operation
c. Series operation
d. None of the above
60. A type of gas producer which has the ability to gasify wet fuel.
a. Updraft
b. Down draft
c. Cross draft
d. Fluidized bed
a. 90-105 kg/m2-hr
b. 110-210 kg/m2-hr
c. 210-240 kg/m2-hr
d. None of the above
a. 50-70 %
b. 70-80 %
c. 80-90 %
d. None of the above
64. A type of rice husk furnace that burns the fuel while it is being spread
in a circular pattern inside the combustion chamber.
a.100-200C
b.300-400 C
c.500-600 C
d.None of the above
69. Engine oil having high flash and fire point indicates.
a.Anticorrosive
b.Antioxidants
c.Dispersants
d.All of the above
46
72. Additives to cause carbon particles in the engine to remain in suspension
in oil.
a. Anticorrosive
b. Antioxidants
c. Dispersants
d. All of the above
a. Dipstick
b. Oil gauge
c. Oil stick
d. None of the above
75. A device that provides a rich mixture of fuel during high load and lean
mixture during under load.
a. Carburetor
b. Economizer
c. Fuel regulator
d. All of the above
a. The spark plug ignites earlier than the fuel while piston is
completing the compression stroke
b. The spark plug ignites earlier than the fuel while the piston is at
the intake stroke
c. The spark ignites earlier than the fuel while moving downward
immediately after the power stroke
47
d. All of the above
a. Trouble shooting
b. Tune-up
c. Timing adjustment
d. All of the above
82. The rapid explosion of mixture of fuel and air within the cylinder when
ignited by spark plug is in .
83. The relatively slow burning as the fuel is injected into a highly
compressed heated air is.
85. Which of the following is true in the operating gasifier for internal
combustion engine?
48
a. Low speed engine
b. Medium speed engine
c. High speed engine
d. None of the above
88. A primary tillage operation which manipulates the soil to a greater depth
than 300 mm.
a. Reservoir tillage
b. Deep tillage
c. Ridge tillage
d. None of the above
89. A secondary-tillage implements which stirs the soil using multiple number
of disk blade arranged on a gang.
90. A trailing harrow that is hitched too high to the drawbar will . . .
91. A kind of chemical used for spraying which form finely divided solid
particles when mixed with water.
a. Emulsion
b. Suspension
c. Solution
d. All of the above
92. Growing of more than one crop on the same land in one year
a. Mixed crop
b. Multiple cropping
c. Inter-cropping
d. None of the above
93. Growing of two or more crops simultaneously and intermingled with no row
arrangement.
a. Mixed cropping
b. Inter-cropping
c. Multiple cropping
d. None of the above
a. Inter-planting
b. Inter-cropping
c. Inter-culture
d. All of the above
49
95. It is a practice of planting short-term annual crop with long-term annual
or biennial crops.
a. Inter-planting
b. Inter-cropping
c. Inter-culture
d. All of the above
a. Inter-planting
b. Inter-cropping
c. Inter-culture
d. All of the above
a. Spot treatment
b. Space application
c. Direct application
d. All of the above
98. Dispersion of liquid or dry particles in air in such a manner that target
pest is exposed to chemical.
a. Spot treatment
b. Space treatment
c. Direct application
d. All of the above
a. Direct application
b. Foliar application
c. Space application
d. All of the above
a. Direct application
b. Spot treatment
c. Space application
d. None of the above
50
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(D)
a. Basal application
b. Band application
c. Broadcast application
d. None of the above
a. 6.8 hp
b. 13.6 hp
c. 20 hp
d. 27.2 hp
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
a. 1.39 hours
b. 2.39 hours
c. 3.39 hours
d. 4.39 hours
a. 25.2
b. 18.3
c. 34.6
d. 52.4
6. Compute the number of plants required for a 2-hectare corn farm with the
following seed spacing: Plant spacing, 0.25 m and row spacing, 0.45 m.
7. A drawbar dynamometer shows that the average pull required for a certain
machine is 12.5 kilo nt. If the tractor travels 25 m in 3.5 min, what is the
power developed?
a. 1.5 hp
b. 2.5 kilowatt
c. 6.667 hp
d. 0.567 kw
a. power
b. intake
c. compression
d. exhaust
9. During this event, fresh supply of fuel enters the cylinder as the piston
moves downward and the intake valve opens.
a. compression
b. intake
c. exhaust
d. power
a. 5.6 ha/hr
b. 9.6 ha/hr
c. 2.6 ha/hr
d. 8.6 ha/hr
13. A 4-cylinder, 120 mm × 120 mm engine turns at 2000 rpm. What is the
total engine displacement?
52
a. 500π cm3
b. 250π cm3
c. 1000π cm3
d. none of the above
14. It refers to ratio of the kinetic energy of air that a windrotor can
convert into mechanical energy over the theoretical maximum available from
the wind.
a. Power coefficient
b. Torque coefficient
c. Betz coefficient
d. Speed coefficient
a. Gasoline engine
b. Diesel engine
c. Steam engine
d. None of the above
16. Determine the theoretical power available from a stream using the
following data: average width = 6 meters; average depth = 16 inches; speed =
10 ft/min; height of drop = 1.5 meter.
a. 1.82hp
b. 1.63 hp
c. 1.82 kW
d. 2.45 kW
a. 1.500
b. 2.000
c. 1.750
d. none of the above
a. constant pressure
b. constant temperature
c. constant volume
d. constant enthalpy
a. constant pressure
b. constant temperature
c. constant volume
d. constant enthalpy
20. There are 1000 heads of chicken in a poultry farm. Estimate the kilos of
dung that can be produced by the chicken within 1 month.
a. 2,050 kg
53
b. 2,250 kg
c. 2,950 kg
d. 2,850 kg
21. Which of the following statements is incorrect: The higher the pressure
22. How much water is produced by an engine each hour if it burns 25 liters
of premium gasoline per hour?
a. 20.45 liters
b. 25.93 liters
c. 30.56 liters
d. 32.55 liters
23. A prony brake test of an engine shows that the crankshaft rotates at 1000
rpm. The brake arm length is 60 inches and the net load on the scales is 50
lb. What is the power developed?
a. 48 kW
b. 35 kW
c. 42 hp
d. 26,180 ft-lb/min
24. A 1.2-m wide floating tiller is used for rotary tilling/puddling a 24-m X
42-m wetland paddy field. The average speed of travel is 3 kph and turning at
the headlands takes 10 seconds. What is the field efficiency if the field is
worked along its length?
a. 71 %
b. 74 %
c. 79 %
d. 84 %
a. Basal application
b. Broadcast application
c. Band application
d. None of the above
27. Among the factors affecting the choice of harvesting and threshing
system, which one is the major factor?
a. kind of crop
54
b. timeliness of operation
c. topography
d. farm size
28. The threshing action most commonly employed by a mechanical thresher for
rice is:
a. rubbing action
b. impact action
c. stripping action
d. all of the above
29. A paddy seeder was imported from Timbuktu with the following
specifications:
Groundwheel diameter = 47.24 inches Fixed row spacing = 250 mm Hopper capacity
= 20 kg. Designed working speed = 3 miles/hour Engr. Drunken is to calibrate
the seeder for paddy sowing. What groundwheel rpm must he set to simulate the
designed working speed?
a. 21.34
b. 26.58
c. 36.21
d. 10.21
30. Remote control hydraulic cylinders with internal diameters of 2.5 inches
and 3.5 inches with 1000 lbs/in2 maximum pressure are available for tractors.
What is the maximum force that can be developed by the 3.5-inch cylindrers?
a. 9.7 lbs
b. 9,620 lbs
c. 9,620 kg
d. 9.7 kg
31. A 4-cylinder, 120 mm × 120 mm engine turns at 2000 rpm. What is the total
engine displacement?
a. 500π cm3
b. 250π cm3
c. 750π cm3
d. none of the above
32. It refers to ratio of the kinetic energy of air that a windrotor can
convert into mechanical energy over the theoretical maximum available from
the wind.
a. Power coefficient
b. Torque coefficient
c. Betz coefficient
d. Speed coefficient
33. Determine the theoretical power available from a stream using the
following data: average width= 6 meters; average depth = 16 inches; speed =
10 ft/min; height of drop = 1.5 meter.
a. 1.82hp
b. 1.63 hp
c. 1.82 kW
55
d. 2.45 kW
34. This rating is given to diesel fuels for their ability to burn without
detonating as compared with the performance of reference fuels.
a. octane rating
b. cetane rating
c. heptane rating
d. alcohol rating
a. 1.500
b. 2.000
c. 1.750
d. 1.835
a. constant pressure
b. constant temperature
c. constant volume
d. constant enthalpy
a. 75%
b. 80%
c. 85%
d. 90%
39. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing to be adjusted to 14 inches. Groundwheel diameter is
1.22 m.
Seeding Discharge (gm)
Adjustment (9 rows for 10 revolutions of
groundwheel)
¼ Open 140
½ Open 460
¾ Open 740
Full Open 1,100
a. 5 kg/ha
b. 11 kg/ha
56
c. 8 kg/ha
d. 20 kg/ha
a. Insurance
b. flexibility
c. future contract
d. aggregation
41. A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2
minutes. When unloading on-the-go, it has an 86% field efficiency. Field
yield is 3.5 tons/ha. What would be the field efficiency if the combine
stopped to load?
a. 70%
b. 75%
c. 80%
d. 85%
a. Basal application
b. Broadcast application
c. Band application
d. None of the above
43. Solid blocks or masses that are cut, sheared or broken loose by tillage
tool.
a. Furrow slice
b. Clod
c. Loose soil
d. None of the above
a. Cost reduction
b. Depreciation
c. Loss of value
d. None of the above
46. The rate of performance obtained if a machine performs its function 100 %
of the time of a given operating speed using 100 % of its theoretical width.
a. Custom cost
b. Operating cost
c. Variable cost
d. None of the above
48. The ratio of engine power used in performing an operation to engine power
available.
49. The amount of any material applied per unit treated by a sprayer.
a. 23.2% by volume
b. 23.2% by weight
c. 15.3% by weight
d. 15.3% by volume
52. The bore of an engine is 8 cm and the stroke is 11 cm. Find the piston
displacement.
a. 55.23 cm3
b. 155.35 cm3
c. 789.30 cm3
d. 552.92 cm3
53. A prony brake test of a 4-stroke cycle 7.5-cm × 10-cm engine was
conducted. The lever arm was 75 cm at a net force of 60 N and speed of 1000
rpm.Determine the bhp of the engine.
a. 4.7
b. 60
c. 7.6
d. 6.3
58
54. It is a special shaft that extends to the rear of the tractor and is
designed to provide power to integral mounted or trailing implements such as
mowers, balers, and Rotavator.
a. PTO
b. drawbar
c. differential
d. hitch
55. It is an instrument used for testing specific gravity of a liquid.
a. hydrometer
b. hygrometer
c. viscometer
d. density meter
a. gear box
b. automatic transmission
c. differential
d. PTO
57. It refers to the driving force developed by a wheel or any other traction
device.
a. rolling resistance
b. traction
c. inertia
d. pull
a. governor
b. accelerator
c. flywheel
d. crankshaft
a. 82.5%
b. 50.5%
c. 59.3%
d. 10.0%
60. In a spark ignition engine, fresh supply of fuel and air mixture enters
the cylinder as the piston moves downward and the intake valve opens during
this event.
a. exhaust
b. intake
c. power
d. compression
59
61. In order to properly stop the forward motion of the 4-wheel tractor, the
operator has to step on the:
a. brake pedal
b. clutch pedal
c. brake and clutch pedals
d. accelerator
a. 5 percent
b. 2 percent
c. 10 percent
d. 20 percent
63. What is the process by which a farm manager looks ahead to the future and
contemplates alternative courses of action for the farm?
a. Budgeting
b. Farm Economics
c. Farm Planning
d. Efficiency of Production
64. These are the economic resources owned by a business which are expected
to benefit future operations:
a. inventories
b. assets
c. liabilities
d. none of the above
65. Which of the following is not a good reason for using Farm Plans?
a. Planning
b. Leading
c. Controlling
d. Procrastinating
68. Which among the following is/are not functions of farm management
60
a. Keeping records and accounts.
b. Controlling and directing the various resources.
c. Managing labor, land and capital.
d. None of the above.
a. Human factors
b. Statements b, and c
c. Liquidity
d. Natural factors
70. This involves planning the procurement and utilization of funds and
controlling the financial operations to insure effective utilization of
funds.
a. Farm Budget
b. Marketing Management
c. Production Management
d. Financial Management
a. 1:1
b. 2:1
c. 3:1
d. 2:2
73. It is the cost outlay of the firm for the wear and tear of machines,
buildings and implements.
a. credit
b. depreciation cost
c. discount rate
d. none of the above
74. What is the term used for the amount of funds available for payment at
any given time?
a. Current assets
b. Accounts receivables
c. Net working capital
d. Capital
a. original cost
b. original cost less depreciation
c. normal market value
d. none of the above
61
76. What is the “book value of an asset?”
78. If he overlaps each pass by 10%, how many kilometers more will he have to
walk to plow one hectare?
a. 4.70 km
b. 5.56 km
c. 1.98 km
d. 8.03 km
79. An engine at 2000 rpm is to drive a pump to run at 1000 rpm. The engine
drive pulley is 15 cm in diameter and there is a 10% belt slippage. What
should be the diameter of the pulley on the pump?
a. 23 cm
b. 27 cm
c. 24 cm
d. 26 cm
80. How many hectares can be plowed in one hour by a tractor operating at 5
kph and is pulling 3 moldboard plows with a total width of cut of 160 cm at a
depth of 14 cm?
a. 0.80 ha/h
b. 1.80 ha/h
c. 2.80 ha/h
d. 3.80 ha/h
81. What is the total draft in kilogram pull if there is a draft of 0.45
kg/cm2?
a. 1108 kg
b. 1008 kg
c. 1008 kg
d. 1018 kg
82. How many hectares can be plowed in 3 hours if 8% of the time is spent on
headland turning?
a. 2.208 ha
b. 1.208 ha
c. 0.208 ha
d. 3.208 ha
62
83. A 2-hectare farm is to be planted by a 4-row rear mounted corn planter
traveling 5km/h with a row spacing of 1 meter. The field is twice as long as
its width. If 3 minutes is spent for each head land turn;
How many turns will the planter make to plant the whole area?
a. 21 turns
b. 22 turns
c. 23 turns
d. 24 turns
84. How many hours are needed to plant the whole field if the plant rows run
along the longer length?
a. 2.2 hours
b. 1.2 hours
c. 2.9 hours
d. 2.7 hours
85. How many percent of the total planting time in was spent in headland
turning?
a. 52.54%
b. 54.54%
c. 58.54%
d. 51.54%
86. If the planter delivered an average of 12 seeds per linear meter, how
many seeds are needed for the entire area including the headlands? Planting
is along the longer side.
a. 210,000 seeds
b. 240,000 seeds
c. 220,000 seeds
d. 230,000 seeds
a. 10.42 meters
b. 12.42 meters
c. 14.42 meters
d. 15.42 meters
a. 8.0 kph
b. 6.0 kph
c. 4.0 kph
d. 2.0 kph
89. A farmer will use an 8-row grain drill for planting paddy. Its
groundwheel is one meter in diameter designed for slip operation. Row spacing
is adjustable. He will follow a 100-kg/ha seeding rate recommendation. If the
row spacing is 25 cm, how much paddy (in grams) must the drill deliver for
one revolution?
63
a. 69.8 grams
b. 64.8 grams
c. 62.8 grams
d. 61.8 grams
90. If 1000 seeds weighs 25 grams and assuming uniform distribution, how many
seeds must there be per linear meter along the row?
a. 180 seeds/m
b. 100 seeds/m
c. 190 seeds/m
d. 110 seeds/m
91. If the seed germination rate is 90%, how many rice plants will be
established per square meter?
a. 160 seeds will grow
b. 960 seeds will grow
c. 660 seeds will grow
d. 360 seeds will grow
92. If the working speed is 5 km/h, how much time is needed to plant a square
2-hectare field at 20cm row spacing?
a. 2.5 hours
b. 3.5 hours
c. 4.5 hours
d. 1.5 hours
93. If the optimum pulling load of the carabao is about 35 percent of its
body weight and weighs 250 kg.
a. 77 kg
b. 107 kg
c. 97 kg
d. 87 kg
a. contact point
b. fuel pump
c. gas tank
d. float valve
95. Compact tractors are four-wheel tractors with power rating below 32 hp.
a. 80 Kw
b. 24 Kw
c. 70 Kw
d. 90 Kw
64
a. gear lever
b. 3-pt hitch
c. pto
d. steering wheel
97. For high speed engines, the intake valve opens at TDC and closes after
BDC.
a. 54 degrees
b. 50 degrees
c. 44 degrees
d. 40 degrees
a. carburetor
b. injection nozzle
c. metering valve
d. plunger
99. In a four-stroke cycle engine, compression is the event during which the
piston is moving upward and the two valves are close.
a. power stroke
b. intake stroke
c. compression stroke
d. exhaust stroke
a. exhaust stroke
b. intake stroke
c. compression stroke
d. power stroke
65
MECHANIZATION
, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(E)
a. backwards
b. counterclockwise
c. clockwise
d. forward
2. The flywheel is the part of the engine which absorbs the power from the
crankshaft during the idle strokes and returns it during the power stroke.
a. True
b. False
c. Neither
d. None of the above
a. 5.85 swd
b. 5.95 swd
c. 5.59 swd
d. none of the above
4. At the given velocity, how long will it take to plow a rectangular field W
meters wide and L meters length.
a. lw/10VW
b. Lw/10vW
c. lW/10Vw
d. LW/10vw
a. 50%
a. 33.33%
b. 30%
c. 53.33%
a. LW / 90 vw
b. LW / 9 vw
c. Lw / 9 vW
66
d. Lw / 90 vW
7. A two-hectare rice field whose length is twice its width is to be
harvested by a stripper combine whose average speed will be 5 kph. Field
sampling of the crop showed 0.60 kg paddy per sq. meter. If the combine was
able to finish the area in two hours, how wide is the swath of the combine?
a. 2 m
b. 79 in
c. 6.6 ft
d. all of the above
8. Based on the field area sampling what will be the total yield of the 2-
hectare field?
a. 12,000 kg
b. 423,288 oz
c. 12,200x 10 3 g
d. 26,840 lbs
9-12. A 6-nozzle boom sprayer is mounted at the back of a four wheel tractor.
The nozzles are arranged 150 cm. apart along the boom length. Each nozzle has
a 60 degree spray angle. Each nozzle delivers k 1/min. At what height must
the boom be raised, relative to the ground level, so that the spray from each
nozzle does not overlap upon reaching the top of the rice plant canopy which
is 50 cm tall?
a. 108 cm
b. 180 cm
c. 93.3 cm
d. 309.8 cm
a. 150 cm
b. 750 cm
c. 75 cm
d. 900 cm
11. If the tractor travels at 5 kph with 95% field efficiency, what will be
the spraying capacity (in ha/hr).
a. 4.25
b. 4.52
c. 4.28
d. 470
12. If each nozzle delivers one liter per minute, how many liters per hectare
will the boom sprayer deliver?
a. 84.11 li/ha
b. 184.11 li/ha
c. 16 li/ha
d. 17 li/ha
a. sunk cost
b. opportunity cost
c. investment cost
d. depreciation cost
a. accounting
b. present economy
c. overhead
d. time value
16. The table below shows a specific plan for repaying a loan within a period
of 3 years:
a. P4,560
b. P3,640
c. P5,560
d. P3,085
N 0 1 2 3 4
Initial -
cost P40,000
Revenues 40,000 Y 30,000 Y
Expenses 25,000 20,000 15,000 20,000
18. If the desired MARR is 18%, the value of Y that will make the project
acceptable is closest to
a. P22,568
b. P52,390
c. 28,695
d. 34,716
19. You are interested in buying a farm implement worth P80,000. Your
available cash is only P25,000 to pay for the downpayment. The remaining
balance will be amortized over a period of 18 months at an interest rate of
24% compounded monthly. Which will give the correct amount of monthly
payments?
68
a. A = P80,000 (A/P, 6.25%, 12)
b. A = P80,000 (A/P, 6.25%, 12)/18
c. A = P55,000 (A/P, 2%, 18)
d. A = P20,000 (A/P, 1.33%, 18)
20. Mang Andoy secured a loan from a bank in the amount of P250,000 at an
interest rate of 15% compounded quarterly. The loan will be paid back in 36
equal monthly installments. Which is closest to Mang Andoy’s monthly payment?
a. P7,208
b. P6,972
c. P8,644
d. P9,568
a. P3,900
b. P3,740
c. P2,990
d. P3,440
What is the benefit/cost ratio for this investment if MARR is 10% and project
duration is 8 years?
a. 1.65
b. 1.23
c. 1.46
d. 0.978
24. Which machine would you recommend given the following information and a
desired MARR of 10%:
New Machine Used Machine
First cost P44,000 P23,000
Annual revenues 18,000 18,000
Annual operating 7,000 9,000
cost
Annual repair cost 210 350
Overhaul every 2 0 1,900
years
Overhaul every 5 2,500 0
years
69
Salvage value 4,000 3,000
Life, years 15 8
a. new machine
b. used machine
c. used is as good as new
d. do not use either machine
25. If you invest P20,000 now in a business venture that promises to return
P39,479 in 6 years, how many years would it take to get a return of at least
P30,000?
a. 2 years
b. 3 years
c. 4 years
d. 5 years
26. If a person deposits P5,000 now at 8% per year interest and plans to
withdraw P500 per year every year starting 1 year from now, until what year
can he make full P500-withdrawals?
a. 21 years
b. 20 years
c. 19 years
d. 18 years
End of year 0 1 2 3 4 5
Cash flow -P10,000 -P6,000 P5,000 P5,000 P5,000 P10,000
a. 8.6%
b. 11.3%
c. 14.4%
d. 17.4%
a. Photovoltaic
b. Ocean thermal energy conversion
c. Flat-plate collectors
d. Hydropower
a. an electric current
b. butane
c. propane
d. methane and nutrient rich sludge
33. The process of producing both electricity and capturing waste heat is
called
a. muffler
b. header
c. turbocharger
d. catalytic converter
a. alcohol
b. oxygen
c. hydrogen
d. carbon dioxide
34. It is the ratio of the actual weight of fuel inducted by the engine
during the intake stroke to the theoretical weight of air that should have
been inducted by filling the piston displacement volume with air at
atmospheric temperature and pressure.
a. volumetric capacity
d. volumetric measure
b. volumetric parameter
c. volumetric efficiency
72
35. A 85 mm × 85 mm engine runs at 2,000 rpm. What is the maximum piston
speed inside the cylinder?
a. 105 m/s
b. 17.8 m/s
c. 25 m/s
d. 75 m/s
a. 8:1
b. 9:1
c. 10:1
d. 11:1
38. Among the fuels that belong to the paraffin group, this has three carbon
atoms in its molecular structure. It is the main component of LPG.
a. pentane
b. Ethane
c. Butane
d. propane
39. This vertical axis windmill has a very low tip speed ratio and power
coefficient of less than 0.2. The rotor is usually constructed using a
cylindrical tank cut axially into two and installed vertically face to face
at an offset position.
a. Savonious
b. Cretan
c. Darrieus
d. Multibladed
40. How much water is produced by an engine each hour if it burns 25 liters
of premium gasoline per hour?
a. 20.45 liters
b. 25.93 liters
c. 30.56 liters
d. 32.55 liters
a. 42 kW b. 31 hp
c. 16 kW d. 28 kW
73
42. The engine crankshaft provides 30 hp at 1700 rpm. What is the torque
exerted?
a. 100 ft-lb
b. 93 nt-m
c. 126 nt-meter
d. 60 nt-meter
43. A prony brake test of a motor gave the following data: Force = 1.5 lb;
Length of arm = 2 ft; N (rpm) = 1720. What is the power developed?
a. 0.98 hp
b. 0.98 kw
c. 1.523 kw
d. 1.523 hp
44. The ideal air-fuel ratio for using kerosene as an engine fuel is :
a. 10:1
b. 15:1
c. 13:1
d. 12:1
45. What is the average linear speed of the piston for a 4.5 × 6 in. engine
with a crankshaft speed of 1000 rpm.
a. 8 m/s
b. 1,900 in/min
c. 160 ft/min
d. 4,787 cm/min
46. What is the piston displacement volume in liters of a four stroke cycle
4-cylinder 15 × 18 cm engine rotating at 2000 rpm.
a. 12.72
b. 63.30
c. 15.83
d. 79.12
a. 31
b. 14.2
c. 17.2
d. 97
50. The study of the ways and means of organizing land, labor and capital and
the application of technical knowledge and skill in order that the farm may
be made to yield the maximum net returns is called .
a. Management
b. Farm Management
c. Economics
d. Scientific Method
52. The development of a desirable soil structure for a seedbed does not
include:
53. Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow
54. Bend sideward of the point of the share to make the plow cut the proper
width is:
a. vertical clearance
b. horizontal suction
c. disc angle
d. tilt angle
55. The angle the disc of a disc plow makes with the direction of travel to
make it cut the proper width and allow it to rotate when moving forward is:
a. 15 – 25 degrees
b. 42 – 45 degrees
c. 55 – 60 degrees
d. 30 – 36 degrees
75
SWEff
56. In the equation C = , C is capacity expresses in:
10
a. m2/h
b. m2/day
c. ha/h
d. ha/day
a. chemical control
b. biological control
c. mechanical control
d. a and b
QxH
61. In the equation for horsepower, Hp = , Q is pump output in:
3960xEff
a. gallons
b. gpm
c. liters
d. lps
77
64. Average harvesting losses of rice at maturity date is 3.35 %, but two
weeks after maturity date this will increase to:
a. 5.63%
b. 8.64%
c. 40.70%
d. 60.46%
a. row spacing
b. ave. seed emergence
c. forward speed
d. groundwheel diameter
67. Soil working part utilized by push-type weeders for dryland operation is:
a. blade type
b. tine type
c. rotary type
d. all of the above
68. Which of the following statements is incorrect: The higher the pressure,
a. inlet valve
b. piston
c. plunger
d. discharge valve
71. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg. Find
the time required to plow the field:
a. 11.11 hrs
b. 22.22 hrs
c. 44.44 hrs
78
d. 66.66 hrs
72. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
a. 60 kg/ha
b. 70 kg/ha
c. 80 kg/ha
d. 90 kg/ha
73. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field is 42
tons. The operating speed is 4.8 kph. The time for turning on the headland
at the ends of the 500-m field is 15 seconds. Find the field efficiency:
a. 78%
b. 83%
c. 87%
d. 90%
a. 200 liters
b. 300 liters
c. 400 liters
d. 500 liters
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
79
a. 77%
b. 80%
c. 83%
d. 86%
77. Which of the following countries follow the mechanization model of low
land area to farmer ratio?
a. Thailand
b. Philippines
c. Malaysia
d. Indonesia
a. 0.62 m
b. 0.81 m
c. 0.71m
d. 0.92 m
81. An ordinary gasoline engine uses about 0.4 kg of fuel/kW-hr. What is the
approximate thermal efficiency?
a. 20%
b. 19%
c. 30%
d. 35%
a. 40%
b. 35%
c. 32%
d. 25%
83. Determine the drawbar power required to pull a plow with a 3-14 in bottom
at a rate of 3.5 mph if the unit draft is 8 psi of furrow section and depth
of cut is 7 in.
80
a. 21.95
b. 22.35
c. 44.75
d. 52.87
a. 2,459 cm3
b. 4,567 cm3
c. 4,712 cm3
d. 1,283 cm3
85. How much power can a horse deliver if it is continuously pulling 120 lb
load for several hours and walking at a rate of 2.5 mph?
a. 1 hp
b. 0.8 hp
c. 0.75 hp
d. 1.2 hp
a. 3:1
b. 4:1
c. 5:2
d. 1:2
87. Calculate the theoretical power available from a stream using the
following data: average width – 12 ft; average depth- 2 ft; speed – 15
ft/min; height of drop- 4 ft.
a. 2.7 hp
b. 1.5 hp
c. 4.2 kW
d. 5.4 kW
a. 6.1
b. 7.1
c. 6.7
d. 9.1
89. Calculate the location of the center of gravity of 7800 lb-tractor with
respect to the rear axle if the wheelbase is 90 in. The static weight on the
front wheels is 2300 lb.
a. 30”
b. 26.5”
c. 60.5”
81
d. 45.5”
90. A tractor with a 9-in pulley is belted to a prony brake having a 24-in
pulley. If the tractor engine pulley speed is 950 rpm, the brake arm is 54
in, and the net load is 60 lb., what is the hp developed?
a. 25
b. 18.3
c. 34
d. 52
91. Gloria had P1,500, part of which she invested in an account that earns
simple interest of 6.5% per year, and the remainder in an account that earns
4.5% compounded annually. If at the end of 1 year, Gloria’s money amounted to
P1,583.50, how much was her investment in each of the account?
a. Hitch point
b. Link point
c. Implement point
d. All of the above
a. 6%
b. 8%
c. 10%
d. 12%
94. A farmer just made the first quarterly payment of P900 in interest for a
loan that carries an interest rate of 12 % per year, compounded quarterly.
The original amount of the loan is:
a. P18,750
b. P35,000
c. P140,000
d. P30,000
95. The person responsible for helping the organization achieve its goal is
called .
a. Planner
b. Leader
82
c. Organizer
d. Manager
a. 8%
b. 10%
c. 12%
d. 14%
97. Compute the net present value at i=15% per year, compounded annually, for
the cash flow below:
End of 0 1 2 3 4
year
Cash - P12,000 P12,000 P12,000 P12,000
flow P40,000
a. P1,582
b. P5,741
c. P3,048
d. P2,692
a. P7000
b. P6,000
c. P6,380
d. P8,000
99. An irrigation control dam with a 100-year life has an initial cost of
P15M. The gates in the dam must be replaced every five years, at a cost of
P2M. If the interest rate is 8% per year, compounded annually, what is the
capitalized worth of the annual cost of maintaining the dam?
a. P5.683M
b. P7.248M
c. P4.261M
d. P6.148M
a. P3,900
b. P3,557
c. P2,990
d. P3,440
83
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(F)
a. organizing
b. controlling
c. staffing
d. planning
a. planning
b. efficiency
c. effectiveness
d. none of the above
a. credit
b. tax
c. enterprise
d. dividend
4. What is the term used for the effective and efficient use of scarce
resources to achieve organizational goals?
a. Farm Management
b. Management
c. Agriculture
d. Agricultural Economics
a. Planning
b. Organizing
c. Staffing
d. leading
a. duty
b. credit
c. dividend
d. none of the above
a. mediator
b. monitor
c. liaison
d. none of the above
a.customer satisfaction
b.cost recovery
c.convenience
d.communication
a. P22,568
b. P25,000
c. P24,033
d. P17,048
11. The benefit cost ratio obtained by the traditional (conventional) method
for the project above is
a. 0.90
b. 1.15
c. 1.23
d. 1.0
12. An agricultural firm can invest into a 15-year project that will produce
an annual revenue of P200,000 per year. Initial investment required is
P165,000, while yearly operating expenses will be P145,000. What is the IRR
for this opportunity?
a. 18.5%
b. 26.4%
c. 33.1%
d. 36.0%
a. Communication
b. Convenience
c. Cost
d. Customer satisfaction
a. foot
b. Pascal
c. ft-lb/sec
d. pounds
a. psi
b. Pascal
c. Newton
d. Ampere
a. Electromagnetic sprayer
b. Electrolytic sprayer
c. Electrostatic sprayer
d. All of the above
19. It is used to protect tractor operator from dust, noise, rain and heat.
a. Operator’s shield
b. Chasis
c. Cab
d. None of the above
20. A device that transfer seed from the seedbox to the coulter tube at a
fixed rate
a. Seed feeder
b. Seed distributor
86
c. Seed metering device
d. All of the above
a. Cutting mechanism
b. Star wheel
c. Pickup
d. None of the above
a. Header
b. Pickup
c. Star wheel
d. None of the above
a. Agricultural wagon
b. Agricultural loader
c. Agricultural trailer
d. None of the above
a. Foreign matters
b. Cut straw
c. Chaffs
d. None of the above
a. 500 kg/ha
b. 5000 kg/ha
c. 50,000 kg/ha
d. None of the above
26. An external shaft on an agricultural tractor other than the PTO which
provides rotational power to implements that are usually front and side
mounted.
27. A rotating device located inside the hopper of gravity flow applicator
and broadcast spreaders to enhance delivery of granules to the adjustable
orifice of the machine.
a. Mixer
b. Stirrer
c. Agitator
87
d. None of the above
28. In ASAE, safety code for laboratory equipment and typical application,
the safety yellow color stands for
a. Danger stop
b. Warning
c. Caution
d. None of the above
29. A safety gray color at the ASAE safety code is code for
30. When pipeline is painted with green and white color, the safety code
means that the pipe contains
31. The standard length of stroke of hydraulic remote control cylinders for
trailing-type agricultural implement is
a. 6 to 12 inches
b. 8 to 16 inches
c. 10 to 20 inches
d. None of the above
a. 68 kg
b. 78 kg
c. 88 kg
d. None of the above
33. Assume that you are the Agricultural Engineer of 500-hectare corn farm
with soil type that gives 10 psi draft when plowing at a speed of 4 km/hr.
Compute the drawbar horsepower required to pull a three-disk plow with
effective width of cut of 12 inches per disk at a plowing depth of 6 inches.
a. 14.3 hp
b. 23.4 hp
c. 34.5 hp
d. None of the above
34. How many hectares in item above does a tractor pulling a three disk plow
would be able to plow in one day (16 hours operation) assuming a total time
loss of 30 %?
a. 2 ha/day
b. 4 ha/day
c. 6 ha/day
88
d. None of the above
36. How many days in item above are required to plow the 500-hectare farm
using ten units of the same kind of tractor and plow?
a. 8.3 days
b. 12.5 days
c. 15.4 days
d. None of the above
37. What is the amount of fuel consumed in liters per 16 hours day in item
above, of one tractor unit if the specific fuel consumption is 1 lb/dhp-hr
and the specific gravity of the fuel is 0.8?
a. 69.7 liters
b. 130.0 liters
c. 95.1 liters
d. None of the above
38. The perpendicular distance between the upper hitch point and the common
axis of the lower hitch point of a tractor.
a. Mast height
b. Hitch vertical height
c. Stud height
d. None of the above
39. The distance between lower hitch point measured at the base of the lower
hitch stud, or the distance between the inner most restraining means provided
on the implement.
a. 30 kph
b. 40 kph
c. 50 kph
d. None of the above
42. What is the cutting width of the single disk harrow set at 18 degree
working angle containing 20 disks spaced at 30 cm? Disk diameter is 40 cm.
89
a. 553.5 cm
b. 453.7 cm
c. 540.6 cm
d. None of the above
43. If the harrow in item above is a tandem disk harrow, what is the cutting
width of the machine?
a. 589.5 cm
b. 567.4 cm
c. 530.6 cm
d. None of the above
a. 860.5 cm
b. 875.4 cm
c. 850.3 cm
d. None of the above
45. What is the theoretical field capacity of the harrow in item above?
a. 8.6 ha/hr
b. 8.7 ha/hr
c. 8.5 ha/hr
d. None of the above
46. The identification of the given tire with its maximum recommended load
when used in specific type service.
a. Tire rating
b. Tire lug rating
c. Ply rating
d. All of the above
47. A machine that is used with small plow and harrow designed for rice
farming operation.
a. Moldboard
b. Share
c. Shin
d. None of the above
49. The effective field capacity of 2 moldboard plows having 25 cm width each
plowing at a speed of 7km/hr for a field efficiency of 80% is:
a. 0.20 ha/hr
b. 0.28 ha/hr
90
c. 0.32 ha/hr
d. None of the above
a. Atomization
b. Carburetion
c. Turbo charging
d. None of the above
52. Suppose a 4-cylinder engine has a bore of 3.5 in. and a stroke of 4.0
in., what is the engine displacement.
a. 154 in3
b. 175 in3
c. 225 in3
d. None of the above
53. Engine having fuel injected into the combustion chamber near the end of
the combustion stroke and is ignited by heat of compression only.
a. Gasoline engine
b. Diesel engine
c. Steam engine
d. None of the above
a. 1-2-3-4
b. 1-3-4-2
c. 1-2-4-3
d. None of the above
a. Ignition System
b. Carburetor System
c. Cooling System
d. None of the above
a. Methane
b. Carbon Dioxide
c. Carbon Monoxide
d. All of the above
91
a. The biogas can be used for cooking
b. The biogas can run gas refrigerator
c. The biogas can be used for lighting
d. None of the above
58. A biogas is generated inside the
a. Gas holder
b. Mixing tank
c. Digester
d. None of the above
a. 1:0.5 to 1:1
b. 1:1 to 1:2
c. 1:2 to 1:3
d. None of the above
a. 4800 liters
b. 5200 liters
c. 6100 liters
d. None of the above
61. A solid biomass fuel burning device used for domestic cooking water
heating, smoking, roasting and simmering.
a. Furnace
b. Cookstove
c. Biomass oven
d. None of the above
62. The percentage primary air requirement based on the total air for the
combustion of fuel in a cookstove.
a. 80 %
b. 60 %
c. 40 %
d. None of the above
a. Fire
b. Air
c. Fuel
d. All of the above
a. Stoichiometric air
b. Primary air
c. Secondary air
d. All of the above
92
65. The amount of heat required to raise the temperature of one pound water
by one degree Farenheight.
a. Kcal
b. BTU
c. Joule
d. None of the above
a. Insufficiency of fuel
b. Less air is used
c. Too much air used
d. None of the above
a. 3-11 %
b. 11-20 %
c. 20-30%
d. All of the above
a. Damper
b. Chimney
c. Fire box
d. None of the above
71. The recommended angle for the inclined metal grates on the step-grate-
type stove.
a. 45-60 deg
b. 30-40 deg
c. 60-80 deg
d. None of the above
a. Biogas
93
b. CO
c. CH4
d. None of the above
a. 10:1 to 20:1
b. 20:1 to 30:1
c. 30:1 to 40:1
d. None of the above
75. The power output of diesel engine, when powered with gas producer at an
arbitrary speed will be reduced by
a. 10-20 %
b. 30-50 %
c. 50-70 %
d. None of the above
76. The percentage amount of diesel fuel can be replaced by gas producer
a. 20-40 %
b. 50-70%
c. 90-100%
d. None of the above
a. 77%
b. 80%
c. 83%
d. 86%
79. The fertility of a particular field is such that maximum corn yield is
obtained with a population of 54,000 plants per hectare. A checkrow corn
planter is used which discharges 2 seeds/hill. Average emergence is 85%. Row
spacing = hill spacing. Find the spacing.
a. 0.56 m
b. 0.75 m
c. 0.65 m
d. 1.0 m
80. If there are 2.7M animals in the farms, 70 – 74 % of them are used for
draft work and 12M ha of agricultural lands, the contribution of animal power
in the farm is:
a. 0.12 hp/ha
b. 0.16 hp/ha
94
c. 0.21 hp/ha
d. 0.23 hp/ha
a. 77%
b. 80%
c. 83%
d. 86%
82. The projection of cash inflow and outflow of a farm to estimate the
incremental net benefit of the life of the project is known as:
a. Farm budget
b. Farm plan
c. Farm inventory
d. Farm contract
a. Gas engine
b. Diesel engine
c. Gasoline engine
d. All of the above
a. 50-80 kg/m3
b. 100-120 kg/m3
c. 140-160 kg/m3
d. None of the above
85. What is the power of the rotor if the 3-meter windpump operates at 3 mps
wind speed? Assume a power coefficient for the windpump rotor of 0.4.
a. 15.8 WATTS
b. 25.8 WATTS
c. 45.8 WATTS
d. 35.8 WATTS
a. < 4 hp
b. < 5 hp
c. < 6 hp
d. < 7 hp
a. 4-stroke-spark-ignition engine
b. 4-stroke-compression-ignition
c. 2-stroke-spark-ignition
d. 2-stroke-compression-ignition
95
88. Determine the compression ratio of the engine with the following
specifications: Total volume = 70 cc, Bore = 4 cm and stroke = 5 cm
a. 63/1
b. 10/1
c. 7/1
d. 5/1
a. 15
b. 20
c. 25
d. 30
90. Soil working part utilized by push-type weeders for dryland operation is:
a. blade type
b. tine type
c. rotary type
d. all of the above
91. Type of soil working parts utilized by push-type weeders for wetland
operation:
a. blade type
b. tine type
c. rotary type
d. all of the above
a.nozzle discharge
b.effective working width
c.walking speed
d.application rate
a. 200 liters
b. 300 liters
c. 400 liters
d. 500 liters
94. If a cow can provide a draft of 60 kg, how much draft can be provided by
2 cows together?
96
a. 144 kg
97
b. 154 kg
c. 164 kg
d. 174 kg
95. Which of the following belong to the group of variable displacement pump?
a. centrifugal pump
b. mixed flow pump
c. air lift pump
d. all of the above
QxH
96. In the equation for horsepower, Hp = , Eff is:
3960xEff
a. efficiency of pump
b. efficiency of transmission
c. efficiency of prime mover
d. efficiency of the system
97. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field is 42
tons. The operating speed is 4.8 kph. The time for turning on the headland
at the ends of the 500-m field is 15 seconds. Find the theoretical field
capacity of the combine:
a. 1.2 ha/hr
b. 2.4 ha/hr
c. 3.6 ha/hr
d. 4.8 ha/hr
a. inlet valve
b. piston
c. plunger
d. bucket valve
QxH
99. In the equation for horsepower, Hp = , Q is pump output in:
3960xEff
a. gallons
b. gpm
c. liters
d. lps
98
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(G)
1. Which of the following agencies does not belong to the Department of
Agriculture?
a. BPRE
b. BPI
c. AMMDA
d. RAEG
QxH
3. In the equation for horsepower, Hp = , H is total head in:
3960xEff
a. ft.
b. ft/min
c. meters
d. meters/min
4. The power unit for driving centrifugal pumps for household use is
usually:
a. electric motor
b. gasoline engine
c. diesel engine
d. kerosene engine
a. 5 mm/day
b. 10 mm/day
c. 15 mm/day
d. 20 mm/day
a. 1 ft
b. 3 ft
c. 10 ft
d. 30 ft
99
a. manual harvesting and threshing
10
0
b. manual harvesting and mechanical threshing
c. mechanical harvesting and threshing
d. combining
a. kind of crop
b. timeliness of operation
c. topography
d. farm size
9. A pump was tested in measuring the flow rate using a 90-degree triangular
weir. Tests have shown that the head of water into the weir averages at
13 cm. What is the average rate of flow of the pump?
a. 12.02 lps
b. 14.02 lps
c. 11.02 lps
d. 13.02 lps
10. The threshing action most commonly employed by a mechanical thresher for
rice is:
a. rubbing action
b. impact action
c. stripping action
d. all of the above
11. A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2
minutes. When unloading on-the-go, it has an 86% field efficiency.
Field yield is 3.5 tons/ha. What would be the field efficiency if the
combine stopped to load?
a. 70%
b. 75%
c. 80%
d. 85%
12. Average harvesting losses of rice at maturity date is 3.35 %, but two
weeks after maturity date this will increase to:
a. 5.63%
b. 8.64%
c. 40.70%
d. 60.46%
13. The threshing action where grains are detached from their panicles when
the straw is pulled through a “V” shaped configuration is called:
a. rubbing action
b. impact action
c. stripping action
d. a and b
14. What is the theoretical field capacity of a 3-m combine traveling at 100
meters in 52 seconds?
10
1
a. 0.03 ha/hr
b. 0.57 ha/hr
c. 1.45 ha/hr
d. 2.08 ha/hr
15. An internal combustion engine that produces two power stroke in two
revolution of the crankshaft.
a. Gasoline
b. Diesel
c. Biomass
d. None of the above
17. Fuel used for constant volume cycle internal combustion engine.
a. Gasoline
b. Diesel
c. Biomass
d. None of the above
a. higher
b. lower
c. the same
d. None of the above
21. How many grams of cotton seeds are required per row for a hectare of
farm, assuming a seeder is to be used in planting the seeds at 0.20-m row
spacing and 0.50-m plant spacing? The seeding rate is 10 kg/ha.
a. 0.1g
b. 0.3g
10
2
c. 0.5g
d. 0.7g
22. This is the most common cause of short life of lead acid battery. It
results when a cell or battery is permitted to remain in a discharged
condition for some length of time such that the lead sulfate hardens and
cannot be readily converted to its former state.
a. detonation
b. sulfation
c. induction
d. carburetion
a. 4-wheel tractors
b. power sprayers
c. 4-row harvesters
d. 1-ton rice mills
a. 4-stroke-spark-ignition engine
b. 4-stroke-compression-ignition
c. 2-stroke-spark-ignition
d. 2-stroke –compression-ignition
25. Determine the no. of days (8hrs/day) to plow a 10-ha field using a 3-
bottom moldboard plow drawn by a 4-wheel tractor at a speed of 5 kph and
filed efficiency of 76%. Width of cut of one bottom is 33 cm.
26. Type of 2-wheel tractor equipped with a single-bottom moldboard plow and
comb-tooth harrow.
a. traction type
b. rotary type
c. standard type
d. general-purpose type
27. Bend sideward of the point of the share to make the plow cut the proper
width is:
a. vertical clearance
b. horizontal suction
c. disc angle
d. tilt angle
a. up to 3 inches
b. 3 to 6 inches
c. 6 to 18 inches
d. 6 to 36 inches
a. up to 3 inches
b. 3 to 6 inches
c. 6 to 18 inches
d. 6 to 36 inches
34. Part of the moldboard plow bottom that receives the furrowslice, lifts,
inverts and throws it to one side is called:
a. share
b. moldboard
c. landside
d. frog
a. 77%
b. 80%
c. 83%
d. 86%
a. furrow opener
b. metering device
c. seed tube
d. furrow closer
a. gasohol
b. producer gas
c. natural gas
d. straight-run fuel
a. 8-9 cm/sec
b. 15-20 cm/sec
c. 20-23 cm/sec
d. None of the above
42. The air requirement for gasification of agricultural waste ranged from
43. Number of times the exhaust valve opens in 2-stroke cycle engine running
at 2000 rpm.
a. 1000
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5
b. 2000
c. 1500
d. None of the above
44. If the compression ratio is 1:17, the piston displacement volume for 10
cm3 piston clearance volume is
a. 160 cc
b. 170 cc
c. 200 cc
d. None of the above
a. Hand lever
b. Governor
c. Flywheel
d. None of the above
46. A type of engine that completes power stroke in one revolution of the
crankshaft.
a. Four-stroke cycle
b. Two-stroke cycle
c. All of the above
d. None of the above
a. 3
b. 6
c. 9
d. None of the above
a. 2455 BTU/hr
b. 2545 BTU/hr
c. 2445 BTU/hr
d. None of the above
49. Considering that the engine in item above has a piston diameter of 4” and
piston stroke of 5”, what is the indicated horsepower of the engine
assuming a mean effective pressure of 102 psi.
a. 9.7 hp
b. 53.3 hp
c. 28.5 hp
d. None of the above
a. Indicated horsepower
b. Brake horsepower
c. Rated horsepower
d. Belt horsepower
10
6
51. A device which uses fluid power to produce mechanical force and motion.
a. Governor
b. Accumulator
c. Actuator
d. None of the above
52. Part of engine that which slides up and down the cylinder and transmits
power to the crankshaft.
a. Connecting rod
b. Cylinder block
c. Piston
d. Spark plug
a. Governor
b. Accelerator
c. Actuator
d. None of the above
54. Distance of movement piston from the top dead to the bottom dead center.
a. Stroke
b. Bore
c. Valve clearance
d. None of the Above
a. Throttling
b. Clutching
c. Atomization
d. None of the above
56. A device that permits the flow of fuel and of burned gases in one
direction only.
a. Check valve
b. Relief valve
c. Spark plug
d. None of the above
a. Flywheel
b. Fuel injector
10
7
c. Carburetor
d. Spark plug
59. During the power stroke, which of the following valve is open?
a. Intake
b. Exhaust
c. Intake and exhaust
d. None of the above
a. 6
b. 12
c. 4
d. None of the above
a. Indicated horsepower
b. Brake horsepower
c. Rated horsepower
d. None of the above
62. A device that meters the fuel air and mixes them into harmonious mixture
before the mixture enters the combustion chamber of an engine.
a. Governor
b. Air injector
c. Carburetor
d. All of the above
63. At the downward stroke of two-stroke cycle, which of the events are
taking place.
64. The volume displaced by a piston in making upward and downward stroke.
a. 0.986 hp
b. 0.735 kw
c. 75 kgf-m/sec
d. All of the above
66. What is the approximate pull of a carabao whose weight is 1000 kilogram?
a. 100 kg
b. 150 kg
10
8
c. 200 kg
d. None of the above
67. A rice husk stove boils 2 liters of water and subsequently evaporated 0.5
liter. The initial temperature of water is 27C. The amount of fuel
consumed in boiling and evaporating water is 1.5 kg. What is the thermal
efficiency of the stove?
a. 5.2 %
b. 9.2 %
c. 12.5 %
d. None of the above
68. A hand operated tractor which is suitable for both primary and secondary
tillage used when field has been soaked for at least half a day to soften
the soil.
a. Power tiller
b. Puddling-type floating tiller
c. Reaper
d. None of the above
a. 30 mm
b. 33 mm
c. 36 mm
d. None of the above
71. The rear wheel for two-wheel and four wheel drive tractors are adjusted by
.
a. inverting the wheel disc
b. changing the rear axle
c. changing the position of the bolt of the rear axle
d. None of the above
73. Acceptable level wheel slip for two-wheel drive tractor on a firm soil.
a. 7 - 11%
b. 10 - 15%
10
9
c. 16 - 20%
d. None of the above
74. Acceptable level wheel slip for four-wheel drive tractor on a tilled or
soft soil.
a. 6 - 10%
b. 8 - 13%
c. 10 - 16%
d. None of the above
75. It is a single or pair of wheels with radially mounted tilling blades
attached to a common shaft or axle of a puddling-type floating tiller.
a. Cage wheel
b. Tilling wheel
c. Hydro wheel
d. None of the above
a. Elliptical-shaped
b. Boat type
c. Pontoon type
d. All of the above
a. Rotary tiller
b. Float-assist tiller
c. Garden tiller
d. None of the above
a. Machine bolt
b. Lag screw
c. Carriage bolt
d. None of the above
79. A type of disk harrow that is not directly parallel in position with the
tractor during operation.
a. Brake horsepower
b. Drawbar horsepower
c. Power takeoff horsepower
d. All of the above
a. Brake horsepower
11
0
b. Drawbar horsepower
c. Power takeoff horsepower
d. All of the above
82. The power available at the engine shaft used in driving machinery.
a. Brake horsepower
b. Drawbar horsepower
c. Power takeoff horsepower
d. All of the above
a. Pferdestark
b. Pferdstark
c. Pferdestarke
d. None of the above
a. Cheval-vapeur
b. Chevapeur
c. Chevalvapour
d. None of the above
a. Paardekracht
b. Pardkract
c. Padkracht
d. None of the above
a. 735.49
b. 740.12
c. 760.00
d. None of the above
a. Drill
b. Row Crop Planter
c. Broadcaster
d. None of the above
a. Gang
b. Disc set
c. Disc frame
d. None of the above
a. Copper
b. Aluminum
c. Iron
d. All of the above
a. tank
b. pump
c. pressure gage
d. nozzle
94. Suppose a 4-cylinder engine has a bore of 3.5 in. and a stroke of 4.0 in,
what is the piston displacement of the engine?
a. 171.1 in3
b. 153.9 in3
c. 159.2 in3
d. 143.1 in3
95. Calculate the indicated horsepower of a six- cylinder engine, 4" bore and
4" stroke, 1500 rpm, 80 psi mean effective pressure.
a. 36.11 hp
b. 38.61 hp
c. 57.1 hp
d. 46.61 hp
11
2
97. A designer has a choice between gray iron and aluminum for an instrument
mounting in a power plant. Either material would serve equally well under
the same conditions of use. The per-kilogram cost of aluminum and gray
iron is P650 and P430, respectively. Each casting made of aluminum would
cost P315 to machine while the corresponding cost for the gray iron would
be P276. The casting made of aluminum would weigh 0.59 kg while that of
the iron would be 1.09 kg. The cost per piece of aluminum casting is
closest to:
a. P744.70
b. P698.50
c. P564.85
d. P825.30
98. Draft of disc harrows increases and penetration with speed.
99. Find the piston size of a 4-stroke, 4-cylinder engine, given the
following:
a. tool width
b. tool clearance
c. tool operating width
d. tool orientation
11
3
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(H)
2. This is the most common cause of short life of lead acid battery. It
results when a cell or battery is permitted to remain in a discharged
condition for some length of time such that the lead sulfate hardens and
cannot be readily converted to its former state.
a. Carburetion
b. deposition
c. colloid formation
d. sulfation
a. distributor
b. condenser
c. ignition coil
d. secondary winding
a. 0.0034
b. 95
c. 111.5
d. 130.6
a. 21,000 in3
b. 113 in3
c. 28 in3
d. 150 in3
a. mechanical efficiency
b. thermal efficiency
c. power efficiency
11
4
d. volumetric efficiency
a. 20.5%
b. 15.9%
c. 17.2%
d. 24.6%
a. 1.26 kilowatts
b. 1.73 kilowatts
c. 10.65 kilowatts
d. 3.57 kilowatts
a. 76 hp
b. 108 hp
c. 124 hp
d. 145 hp
11. This must be high enough in order to self-ignite the air fuel mixture
in a diesel engine.
a. compression temperature
b. valve compression
c. intake pressure
d. engine pressure
12. What is the cutting width of the single-disk harrow set at 18-degree
working angle containing 20 disks spaced at 30 cm? Disk diameter is 40
cm.
a. 1.82 m
b. 3.82 m
c. 2.82 m
d. 5.82 m
a. AMTEC
b. PhilSCAT
c. AMDP
d. PCARRD
a. payback period
b. internal rate of return
c. benefit-cost ratio
d. net present value
a. up to 3 inches
b. up to 6 inches
c. up to 12 inches
d. up to 18 inches
a. disc diameter
b. depth of cut
c. disc angle
d. all of the above
SWEff
18. In the equation C = , W is width of cut expressed in: (code 16)
10
a. ft.
b. m
c. km
d. mile
22. It is the ratio of the drawbar power and the wheel axle power.
a. Lugging efficiency
b. Traction efficiency
c. Mechanical efficiency
d. None of the above
a. Coefficient traction
b. Running resistance
c. Rolling resistance
d. None of the above
a. Rolling resistance
b. Air and acceleration resistance
c. Slope resistance
d. All of the above
26. A tractor pulls a 1.0 meter wide heavy duty offset disk harrow at an
operating speed of 6 kph. What is the theoretical field capacity of the
machine?
a. 0.6 ha/hr
b. 0.06 ha/hr
c. 6 ha/hr
d. None of the above
11
7
a. International Rice Research Institute
b. International Farm Machinery Institute
c. NEBRASKA
d. None of the above
29. When a machine is driven directly from the shaft of a power source, the
power is transmitted using:
a. Gear drive
b. Sprocket and chain drive
c. Direct drive
d. None of the above
a. A, B, C, D, E
b. HA, HB, HC, HD, HE
c. AA-BB-CC-DD-EE
d. None of the above
a. Clutch
b. Chain
c. Springs
d. None of the above
a. Pulley
b. Bearing
c. Shaft
d. None of the above
a. Bolt
b. Springs
c. Keys
d. None of the above
a. The velocity of the flat belt of a reaper is faster than its forward
velocity.
b. The velocity of the flat belt of a reaper is slower than its forward
velocity.
c. The velocity of the flat belt of a reaper is the same with the
forward velocity.
11
8
d. None of the above
36. A drum seeder is highly suitable for rice a seed that was
.
37. During seeding and planting, which of the crop production activities is
simultaneously in operation?
a. Weeding
b. Irrigating
c. Fertilizing
d. Spraying
38. The metering device of a seeder basically is used to uniformly feed the
seed into the .
a. covering device
b. seed tube
c. furrow opener
d. None of the above
39. Part of a rice transplanter that places the seedlings into the prepared
paddy field.
a. Feed tray
b. Picker
c. Handle
d. None of the above
40. If you are an engineer to mechanize lowland rice farm that is usually
flooded, what primary tillage implement would you recommend?
a. Spiral-type tiller
b. Disc-type tiller
c. Puddling-type tiller
d. None of the above
41. Which of the following primary tillage equipment for small rice farm with
higher field capacity?
a. Disc plow
b. Spiral plow
c. Puddling-type tiller
d. Comb harrow
42. Select a farm operation that can only be done with the use of a machine:
a. plowing
b. spraying
c. harvesting
d. threshing
11
9
43. What is the hydraulic power required by a windpump to deliver water at a
rate of 15 m3/day with a head of 10 meters? Assume 10 hours water pumping
per day.
a. 10.8 watts
b. 20.8 watts
c. 30.8 watts
d. 40.8 watts
a. 18.7 rpm
b. 58.7 rpm
c. 28.7 rpm
d. 38.7 rpm
46. An engine valve arrangement wherein the intake and exhaust valves are
located in the cylinder head.
a. I - head arrangement
b. L- head arrangement
c. X- head arrangement
d. None of the above
47. Type of soil working parts utilized by push-type weeders for wetland
operation:
a. blade type
b. tine type
c. rotary type
d. all of the above
a. nozzle discharge
b. effective working width
c. walking speed
d. application rate
49. Which of the following does not belong to the group of positive
displacement pumps?
a. lift pump
b. force pump
c. rotary pump
d. propeller pump
12
0
50. According to the National Irrigation Administration (NIA), water
requirement for rice production is:
a. 5 mm/day
b. 10 mm/day
c. 15 mm/day
d. 20 mm/day
51. If the specific yield of a particular well is 3 gpm/ft drawdown and the
discharge rate of the pump is 30gpm, the total drawdown is:
a. 1 ft
b. 3 ft
c. 10 ft
d. 30 ft
52. How much money do they need to purchase the wood materials for the work
benches? (Assume that a board foot of lumber costs 30 pesos)
a. 10,800 pesos
b. 12,600 pesos
c. 2,160 pesos
d. 2,520 pesos
53. A 4-ha field was plowed using a 3X12-inch tractor-mounted moldboard plow.
It took 11 hours to complete the operation at a tractor speed of 5 kph.
Find the field efficiency.
a. 75%
b. 80%
c. 85%
d. 90%
55. A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2
minutes. When unloading on-the-go, it has an 86% field efficiency. Field
yield is 3.5 tons/ha. What would be the field efficiency if the combine
stopped to load?
a. 70%
b. 75%
c. 80%
d. 85%
56. In what type of engine is the fuel introduced into the cylinder at the
end of compression?
a. 4-stroke-spark-ignition engine
12
1
b. 4-stroke-compression-ignition
c. 2-stroke-spark-ignition
d. a and b
57. Standard tractors are 4-wheel tractors with power rating of:
a. 32 to 49 hp
b. 50 to 69 hp
c. 70 to 89 hp
d. all of the above
58. Compute the power that can be generated by a hydro-turbine with water
input of 40 lps with a head of 20 m. The turbine efficiency is 70%.
a. 1294 watts
b. 5994 watts
c. 4194 watts
d. 5494 watts
60. Compute the drawbar pull of plow on a power tiller whose depth and width
of cut are equal to 10 cm x 8 cm. The number of plow bottom is 2. Soil
draft is equal to 5 psi. If the plow is drawn at a speed of 10 km/hr,
what is the drawbar horsepower of the plow?
a. 1.04 Hp
b. 2.04 Hp
c. 3.04 Hp
d. 4.04 Hp
a. Stoichiometric air
b. Primary air
c. Secondary air
d. All of the above
62. The amount of heat required to raise the temperature of one pound water
by one degree Fahrenheit.
a. kCal
b. BTU
c. Joule
d. None of the above
63. The air requirement for gasification of agricultural wastes ranged from
.
a. -
b. -
c. -
d. None of the above
65. The specific gravity of gasoline is at the range of .
a. 0.67 to 0.76
b. 0.79 to 0.85
c. 0.85 to 0.91
d. All of the above
66. At the downward stroke of the two-stroke cycle engine, which of the
events are taking place?
a. 0.5 hp
b. 0.25 hp
c. 0.1 hp
d. None of the above
68. Compute the traveling speed of a tractor at 2nd gear with engine speed
set at 2400 rpm. The diameter of wheel of the tractor is 2 meters.
a. 67.6 kph
b. 63.6 kph
c. 65.6 kph
d. 61.6 kph
a.1,250 cal/day
b. 1,500 cal/day
c. 1,750 cal/day
d. 2,000 cal/day
70. If a diesel engine will be used to drive the pump in Problem 38, what is
the recommended horsepower for the engine? Engine efficiency is 80%.
a. 50.9 hp
b. 20.9 hp
c. 85.9 hp
d. 80.9 hp
12
3
a. 3.5 persons
b. 4.1 persons
c. 6 persons
d. None of the above
72. A person is doing a work for 4 hours, what is the power developed by that
person?
a. 0.09 hp
b. 0.13 hp
c. 0.15 hp
d. None of the above
74. It is the radius of the circle within which the implement can make its
shortest run in the field.
a. Radius of run
b. Minimum turning distance
c. Turning radius
d. None of the above
75. It is the travel of the machine across or around a field from a selected
starting point adjacent to the first.
a. Round
b. Trip
c. Operation
d. None of the above
76. One half of the travel from one end of the field to the other.
a. Round
b. Trip
c. Operation
d. None of the above
77. It describes the practice of dividing the field into sub-areas and
operating on these sub-areas individually.
a. Operating in lands
b. Field operation
c. Field division
d. None of the above
a. Headland
b. Turn strips
c. Turning radius
12
4
d. None of the above
a. 29.8
b. 9.1
c. 38.9
d. 18.2
a. 16.2
b. 22.4
c. 7.45
d. 26.4
a. 31.07 Hp
b. 21.07 Hp
c. 35.07 Hp
d. 33.07 Hp
83. What part of the internal combustion engine is usually made of cast iron
and the primary function is to maintain uniform engine speed by carrying
the crankshaft through those intervals when it is not receiving energy
from a piston?
a. connecting rod
b. governor system
c. flywheel
d. accelerator
84. A diesel engine that operates at 2500 rpm will used to drive an
irrigation pump which should turn at 1000 rpm. The pulley diameter for
the pump is 4 inches. What is the recommended pulley for the engine?
a. 2 in.
b. 4 in.
c. 10 in.
d. None of the above
85. An irrigation pump shall be driven by a single cylinder engine. The set-
up has the following data: Engine rpm=2200, pump rpm=1800, Diameter of
Engine Pulley = 25 cm, what should the diameter of the second pulley be?
12
5
a. 35.05 cm
b. 30.55 cm
c. 53.05 cm
d. None of the above
86. The length of the flat-belt pulley drive with the following data is:
Diameter of first pulley=300 mm, diameter of the second pulley=400 mm,
center distance of the pulley shaft=10 meters.
a. 20.15 m
b. 21.09 m
c. 25.01 m
d. None of the above
87. - 90. A corn sheller cylinder will be driven by 10 hp diesel engine thru
a V-belt drive. The engine has a speed of 1800 rpm while the required
speed of the corn sheller is 650 rpm. The effective diameter of the
driver pulley is 12 inches. What should be the diameter of the driven
pulley?
a. 25 in.
b. 33 in.
c. 42 in.
d. None of the above
88. In the given problem in item above, what is the required length of V-belt
if the center distance between pulleys is 60 in.
a. 169 in.
b. 192.5 in.
c. 210 in.
d. None of the above.
89. If the belt has a capacity rating of 4.5 hp per belt, how many belts are
recommended for the drive?
a. 1 belt
b. 2 belts
c. 4 belts
d. None of the above
90. What is the recommended shaft diameter for the driven machine in item
above?
a. 1/2 in.
b. 3/4 in.
c. 1 in.
d. None of the above
91. A type of plow that is widely adapted in breaking different types of soil
for turning and covering crop residues.
a. Rotary plow
b. Moldboard plow
c. Disk plow
d. All of the above
a. Wheel power
12
6
b. Brake power
c. Drawbar power
d. None of the above
93. Tillage equipment which displaces and shatters soil, used to reduce soil
strength and to bury or mix plant materials and fertilizers in the tilled
layer.
a. Disk plow
b. Disk harrow
c. Cultivator
d. None of the above
95. Tillage implements which shatters or loosen the soil without complete
burial or mixing of surface materials.
a. Chisel plow
b. Lister plow
c. Disk plow
d. None of the above
a. Land grading
b. Tillage
c. Earth moving
d. None of the above
a. Zero tillage
b. No-tillage planting
c. Reduced tillage
d. None of the above
a. Bulldozing
b. Chiselling
c. Subsoiling
d. None of the above
99. A secondary tillage operation which pulverizes, smoothens, and packs the
soil during seeded preparation and also controls weeds.
a. Harrowing
b. Listing
12
7
c. Chiselling
d. None of the above
100. A tillage and land forming operation using a tool which splits the soil
and turns two furrows laterally in opposite directions, thereby providing
a ridge-and-furrow soil configuration.
a. Listing
b. Harrowing
c. Chiselling
d. None of the above
12
8
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(I)
a. No-tillage planting
b. Much tillage
c. Minimum tillage
d. None of the above
2. A tool which cuts plants materials and soil ahead of another tool.
a. Coulter
b. Jointer
c. Injector
d. Two of the above
a. Draft
b. Drawbar horsepower
c. Side draft
d. None of the above
a. Tilt angle
b. Lift angle
c. Side angle
d. None of the above
5. It is deep chiselling below 16 in. For the purpose of loosening soil for
root growth and/or water movement.
a. Ridging
b. Chiselling
c. Subsoiling
d. None of the above
a. Compression ratio
b. Air fuel ratio
c. Bore stroke ratio
d. None of the above
12
9
a. 20%
b. 40%
c. 60%
d. 80%
a. Digestion
b. Carbonization
c. Gasification
d. Pyrolysis
a. Brake horsepower
b. Indicated horsepower
c. Drawbar horsepower
d. Flywheel horsepower
10. An engine has piston displacement of 38.4 in3. If the clearance volume of
the cylinder is 2.5 in3, what is the compression ratio?
a. 1:12
b. 1:16
c. 1:8
d. None of the above
a. 100
b. 50
c. 25
d. None of the above
12. A device that connects and disconnects power input to the power output.
a. Clutch
b. Gear
c. Pulley
d. None of the above
13. The space when the piston is at the top dead center
14. How many piston strokes are there in one revolution of a crankshaft.
a. One
b. Two
c. Four
d. None of the above
13
0
15. What is the indicated horsepower, of a four-stroke, six-cylinder engine
having a 4” bore and 4” stroke. The engine speed is 1500 rpm and the
mean effective pressure is 80 psi.
a. 35 hp
b. 45 hp
c. 52 hp
d. None of the above
16. How many times the intake valve opens in 4 stroke-cycle engine running at
2000 rpm.
a. 1000
b. 2000
c. 500
d. None of the above
a. 85 hp
b. 92 hp
c. 102 hp
d. None of the above
a. Differential gear
b. Clutch
c. Actuator
d. None of the above
a. 1-6-8-4-3-2-7-5
b. 1-8-7-3-6-5-4-2
c. All of the above
d. None of the above
a. 200
b. 100
c. 50
d. None of the above
a. 42.7%
b. 52.7%
13
1
c. 72.7%
d. 82.7%
22. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field
is 42 tons. The operating speed is 4.8 kph. The time for turning on the
headland at the ends of the 500-m field is 15 seconds. Find the actual
field capacity:
a. 1.5 ha/hr
b. 2.5 ha/hr
c. 2.0 ha/hr
d. 3.0 ha/hr
24. The cutting mechanism most commonly employed by reapers and combines is:
26. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field
is 42 tons. The operating speed is 4.8 kph. The time for turning on the
headland at the ends of the 500-m field is 15 seconds. Find the field
efficiency:
a. 78%
b. 83%
c. 87%
d. 90%
27. A pump was installed with a suction head of 6 meter and a discharge head
of 10 meters. The discharge rate of the pump is 60 liters per minute.
What is the water horsepower of the pump?
a. 0.810 hp
b. 0.610 hp
c. 0.410 hp
d. 0.210 hp
28. The greatest heat loss for a 4-stroke cycle, spark ignition engine with a
thermal efficiency of 23% is attributed to:
13
2
a. cooling system
b. friction
c. exhaust gases
d. radiation
29. This gas is a mixture of butane and propane and may be used to a
considerable extent as engine fuel.
a. biogas
b. LPG
c. producer gas
d. natural gas
30. This refers to the quantity of heat required to raise the temperature 1
lb of water 1ºF.
a. specific heat
b. thermal conductivity
c. heating value
d. Btu
31. It is the partial or complete interruption of the fuel flow in the fuel
system as a result of vaporization of the fuel and the formation of gas
bubbles at some point.
a. stalling
b. vapor lock
c. detonation
d. explosion
32. If a boom sprayer has 6 nozzles and each nozzle discharges 0.6 liter/
min, what is the application rate if the spray swath and walking speed is
25 m/min?
a. 480 liters/min
b. 470 liters/min
c. 460 liters/min
d. 450 liters/min
33. A soil mass cut, lifted, pulverized, inverted, and thrown to one side of
the plow bottom.
a. Furrow crown
b. Furrow slice
c. Furrow wall
d. None of the above
a. 746 watts
b. 3,300 ft-lb/min
c. 0.1 kilowatt
d. 0.1 hp-hr
13
3
35. The energy received from the sun, per unit of time, on a normal surface
at the average distance between the sun and earth outside the earth’s
atmosphere is equal to:
a. 1,353 w/m2
b. 690 w/m2
c. 460 w/m2
d. 1,533 w/m2
a. 1.54 kilowatts
b. 1.73 kilowatts
c. 10.65 kilowatts
d. 3.57 kilowatts
37. The maximum percentage of energy that can be obtained from the wind
through the use of any mechanical wind energy conversion device is:
a. 50%
b. 59.3 %
c. 25.5%
d. 40.7%
a. Cretan
b. Savonius
c. Darrieus
d. 2-bladed airfoil type
39. Walking in the rice field operating the sprayer with a spray swath of 1
m, a person covers 220 m/min. If the nozzle discharge is 0.4 liter/min,
what is the application rate per hectare?
40. This fuel is obtained from the fermentation of wet wastes such as animal
dung in the absence of oxygen. This gaseous fuel contains up to 60
percent methane.
a. producer gas
b. carbon monoxide
c. liquefied petroleum gas
d. biogas
a. 1 hp
b. 1.8 kW
c. 1.5 hp
d. 1.5 kW
13
4
42. In the operation of this ideal engine, the combustion of fuel occurs
instantaneously such that the pressure rises at constant volume.
43. An engine with a clearance volume of 120 cm3 and whose bore and stroke are
10 cm and 10 cm, respectively, is most possibly:
a. a gasoline engine
b. a diesel engine
c. a compression ignition engine
d. a jet engine
44. The ideal air-fuel ratio in terms of weight for methane (CH4) is:
a. 14.5:1
b. 16.7:1
c. 15.2:1
d. 17.3:1
45. The ideal air-fuel ratio in terms of weight for cetane (C16H34) is:
a. 15:1
b. 16:1
c. 14:1
d. 17:1
46. A 120-hectare farm is to be planted with corn. The row and hill spacing
are 50 cm and 40 cm, respectively. How many hills are to be planted in
the farm? If a 12-row drill planter is to be used at 10 kph implement
speed, what is the theoretical and effective field capacity of the
machine? Assume a field efficiency of 80%. If the field requires 3 seeds
per hill and has a percentage emergence of 90%, how many kilos of seeds
are needed for the entire area? Assume 0.1 g per seed.
a. 1000 kg
b. 2000 kg
c. 3000 kg
d. 4000 kg
a. 50
b. 100
c. 20
d. 90
a. natural gasoline
b. cracked gasoline
c. straight-run gasoline
d. blended gasoline
50. Considering that there are 3M farms, 12M ha of agricultural lands and
assuming five farmers per farm, the human power contribution in the farm
is about:
a. 0.1 hp
b. 0.125 hp
c. 1.0 hp
d. 1.25 hp
a. butane
b. pentane
c. propane
d. none of the above
a. LPG
b. natural gas
c. producer gas
d. biogas
53. The sequence by which the cylinder delivers the power stroke.
a. Ignition
b. Firing order
c. Flash point
d. None of the above
13
6
a. Fuel and air
b. Fuel
c. Air
d. None of the above
a. Spark plug
b. Piston
c. Carburetor
d. None of the above
57. During a certain period in a certain place where business is limited only
to selling meat, the rate of turnover of money is 147 and the total
volume of sales is 2,450 kg. If the selling price of meat per kilogram is
P120, how much currency is in circulation under the quantity theory of
money?
a. P500
b. P1,000
c. P1,500
d. P2,000
59. The lever-operated manual knapsack sprayer method of test is found in:
a. PAES 113:2000
b. PAES 112:2000
c. PAES 113:2001
d. PAES 115:2000
a. Politician
b. must balance competing goals
c. mediator
d. makes decisions difficult
61. It is the ratio of the weight of the shelled kernels collected at the
main outlet, to the total weight of the kernel input of the sheller,
expressed in percent.
a. shelling recovery
b. shelling loss
c. purity
d. shelling efficiency
13
8
c. A product is anything offered to a market for attention, acquisition
and consumption.
d. A good product is enough to warrant high sales in the market.
63. What three most important factors input into the determination of prices?
65. What factors would lead a marketer to adopt a going-rate pricing strategy?
a. Maintenance time
b. Machine adjustment time
c. Repair time
d. All of the above
a. market list
b. farm capital
c. farm potential
d. farm inventory
a. potential
b. freedom
c. clarity
d. safety
1
70. Tools that are used to make holes or change the shape or size of holes
are called
a. layout tools
b. boring tools
c. cutting tools
d. driving tools
71. Obtained from OXOGENS, it is the most common shop material.
a. Silicon
b. steel
c. galvanized iron
d. wood
72. Select a farm operation that can only be done with the use of a machine:
a. plowing
b. spraying
c. harvesting
d. threshing
73. If the speed ratio of the groundwheel over seedplate of a two-row corn
planter is 5.0, determine the plant population per hectare. Row spacing
is 75 cm. Groundwheel diameter is 60 cm. Ave. no. of seeds per hill is 2.
No. of cells of seedplate is 25. Ave. emergence of seeds is 85%.
a. 35,335 plts/ha
b. 45,445 plts/ha
c. 55,223 plts/ha
d. 60,071 plts/ha
74. The use of machinery does not only imply ownership, the following are
also considered viable options:
a. renting
b. custom hire service
c. joint ownership
d. borrowing
a. up to 3 inches
b. 3 to 6 inches
c. 6 to 18 inches
d. 6 to 36 inches
76. Part of the moldboard plow bottom that receives the furrowslice, lifts,
inverts and throws it to one side is called:
a. share
b. moldboard
c. landside
d. frog
a. Engine
b. Transmission box
1
c. Hydraulic system
d. All of the above
a. 300 psi
b. 200 psi
c. 400 psi
d. None of the above
a. Exhaust valve
b. Intake valve
c. Check valve
d. None of the above
a. 1/3
b. ½
c. ¾
d. None of the above
a. 120 psi
b. 200 psi
c. 50 psi
d. None of the above
a. Gasoline
b. Kerosene
c. LPG
d. None of the above
a. Viscosity
b. Cetane Number
c. Volume weight
d. None of the above
a. 1-5 deg
b. 5-10 deg
c. 10-15 deg
d. None of the above
a. 5-12 deg
b. 17-19 deg
1
c. 20-26 deg
d. None of the above
86. A type of engine that completes power stroke in two revolution of the
crankshaft.
a. Four-stroke cycle engine
b. Two-stroke cycle engine
c. All of the above
d. None of the above
a. Four-stroke cycle
b. Two-stroke cycle
c. All of the above
d. None of the above
a. Four-stroke cycle
b. Two-stroke cycle
c. All of the above
d. None of the above
a. Spark plug
b. Flywheel
c. Piston
d. None of the above
a. 125 rpm
b. 150 rpm
c. 200 rpm
d. None of the above
92. What is the brake horsepower of the engine in item above if the
mechanical efficiency is 80 percent.
a. 8 hp
b. 31 hp
c. 35 hp
d. None of the above
1
a. 69 %
b. 78 %
c. 59 %
d. None of the above
94. What is the thermal efficiency of an engine which uses 0.6-lb of fuel per
horsepower-hr. The fuel contains 20,000 BTU/lb.
a. 21.2 %
b. 34.5 %
c. 46.8 %
d. None of the above
a. 2 π R/c
b. 2 π RN
c. 2 π RFn/c
d. None of the above
96. What is the brake constant value of dynamometer whose length of arm is
equal to 1m?
a. 0.082 sec/kg
b. 0.82 sec/kg
c. 2.8 sec/kg
d. None of the above
97. A diesel engine four-stroke cycle with three cylinder has a cylinder bore
of 89 mm and a stroke of 130 mm. The compression ratio is 16:1 and
running at a speed of 2000 rpm. What is the piston displacement of the
engine per cylinder?
a. 809 cc
b. 1320 cc
c. 650 cc
d. None of the above
a. Soil condition
b. Hitch to the tractor
c. Topography
d. All of the above
99. Two pistons running at the same time in the same direction but performing
different strokes.
a. Running mate
b. Firing order
c. Valve timing
d. None of the above
100. The greatest heat loss for a 4-stroke cycle, spark ignition engine with
a thermal efficiency of 23% is attributed to:
1
a. cooling system
b. exhaust gases
c. friction
d. internal convection
1
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(J)
a. 50 %
b. 18 %
c. 30 %
d. None of the above
a. 43 %
b. 58 %
c. 24 %
d. None of the above
3. One of the two times in a year when the sun is farthest from the equator.
a. Equinox
b. eclipse
c. solstice
d. azimuth
4. A point in which all the horizontal and vertical forces in the plow
meets.
a. Side draft
b. Center of resistance
c. Center of gravity
d. None of the above
a. Power tiller
b. Reaper
c. Seeder
d. None of the above
a. Ballast
b. Cagewheel
c. Stirring wheel
1
d. None of the above
8. Tractor part that controls the direction of the travel of the machine.
a. Rear wheel
b. Front wheel
c. Stirring wheel
d. None of the above
a. Lugging ability
b. Mechanical efficiency
c. Coefficient traction
d. None of the above
a. 540 rpm
b. 450 rpm
c. 640 rpm
d. None of the above
a. Spur gear
b. Planetary gear
c. Differential
d. None of the above
13. It is a gear reduction of the tractor located in the power train between
the differential and the driving wheel and transmits power of low speed
and large tongue to the rear axles and wheels.
a. Differential
b. Universal joint
c. Final drive
d. None of the above
a. 100 rpm
b. 540 rpm
c. 1200 rpm
d. None of the above
1
a. 6 spline
b. 21 spline
c. 20 spline
d. All of the above
a. 35 mm
b. 45 mm
c. 50 mm
d. Two of the above
a. 75 kw
b. 60 kw
c. 80 kw
d. None of the above
18. The heat energy content of coconut shell charcoal is 14223 BTU/lb. How
many kilo calories are there in 10 kilos of coconut shell charcoal?
a. 70-80 %
b. 80-90 %
c. 90 and less than 100 %
d. All of the above
a. 40-70 %
b. 70-90 %
c. 10-40 %
d. All of the above
a. 3.68 m3/hr
b. 31.68 m3/hr
c. 13.68 m3/hr
d. None of the above
a. Burning efficiency
b. Thermal efficiency
c. Heat utilization efficiency
1
d. None of the above
a. 29 kg
b. 25 kg
c. 34 kg
d. 39 kg
24. Investment A costs P10,000 today and pays back P11,500 two years from
now. Investment B costs P8,000 today and pays back P4,500 each year for
two years. If an interest rate of 5% is used, what investment decision
will you make and why?
25. The ideal air-fuel ratio for using kerosene as an engine fuel is :
a. 10:1
b. 15:1
c. 13:1
d. 12:1
26. What is the piston displacement volume in liters of a four stroke cycle
4-cylinder 15 × 18 cm engine rotating at 2000 rpm.
a. 12.72
b. 63.30
c. 15.83
d. 79.12
a. 31
b. 14.2
c. 17.2
d. 97
1
29. The act regulating the practice of agricultural engineering in the
Philippines.
31. Which of the following statements is true in accordance with the Republic
Act 8749 (Air Pollution Control Policy)?
32. A corn plantation requires a population of 37,000 plants per hectare. The
average emergence is 90 % and the row spacing is 1.2 meters. If the seeds
are to be drilled, what should be the seed spacing?
a. 0.30m
b. 1.30m
c. 2.30m
d. 3.30m
34. The substance that is added to the tractor for the purpose of changing
traction and stability.
a. Ballast
b. Cage wheel
c. Plow
d. Hydraulic lift
35. A 4 x 6 rubber roller is used as husker for a rice mill. The faster
roller is directly driven by an electric motor at a speed of 1720 rpm.
What would be the required speed for the faster and slower rollers?
a. 1290 rpm
b. 1390 rpm
c. 1190 rpm
1
d. 1490 rpm
a. 0.6 ha/hr
b. 0.06 ha/hr
c. 6 ha/hr
d. None of the above
38. A tractor operating at 3.5 mph develops a drawbar pull of 3000 pounds.
Estimate the required drawbar horsepower for the tractor.
a. 28.0 hp
b. 20.9 hp
c. 19.8 hp
d. None of the above
39. The specific fuel consumption of a tractor is 0.3 lbs per BHP-hour. If
the heating value of the fuel is 19500 BTU/lb, what is the brake thermal
efficiency?
a. 43.5%
b. 33.5%
c. 23.5%
d. 13.5%
41. What is the approximate pull of a carabao whose weight is 1000 kilogram?
a. 100 kg
b. 150 kg
c. 200 kg
d. None of the above
42. Compute the power developed by a 600-kg horse pulling an 80-kg load at a
speed of 0.9 m/sec.
a. 0.94 hp
b. 0.87 hp
1
c. 0.99 hp
d. None of the above
43. A 600-kg water buffalo is pulling a plow at a speed of 0.7 m/s, what is
the draft power of the animal?
a. 0.55 hp
b. 0.76 hp
c. 1.12 hp
d. None of the above
44. A tractor operating at 3.5 mph develops a drawbar pull of 3000 pounds.
Estimate the required drawbar horsepower for the tractor.
a. 18 hp
b. 28 hp
c. 38 hp
d. 48 hp
45. If the animal in Item 12 is pulling a 10-cm wide plow, how long the
animal will travel in order to finish 1 hectare?
a. 75 km
b. 100 km
c. 125 km
d. None of the above
46. A 16-hp rotary tiller is tilling at a depth of 10 cm. Its rotating tiller
has a width of 0.5 m. What is the specific power output of the machine if
it is traveling at a speed of 0.5 m/sec? Assume a power transmission
efficiency for the tiller of 0.80.
a. 0.382 Watts/cm3
b. 1.382 Watts/cm3
c. 2.382 Watts/cm3
d. 3.382 Watts/cm3
47. The heat energy content of coconut shell charcoal is 14223 BTU/lb. How
many kilo calories are there in 10 kilos of coconut shell charcoal.
a. 3-11%
b. 11-20%
c. 20-30%
d. All of the above
49. The recommended angle for the inclined metal grates on the step-grate-
type stove.
a. 45-60 deg
b. 30-40 deg
c. 60-80 deg
d. None of the above
1
50. Using biogas as fuel for engine can replace of diesel fuel.
a. 0%
b.80%
c.100%
d. None of the above
51. The type of steam boiler commonly used in food industry.
a. Fire-tube boiler
b. Water-tube boiler
c. Power boiler
d. None of the above
52. A farmer wishes to spray his vegetable farm at a rate of 300 gallons per
hectare. Sixteen nozzles, 18-inches apart will be used. The forward speed
of the tractor is at 5 kph. Compute the field capacity of the sprayer in
hectare per hour. What is the required pump capacity for the sprayer?
Also, what is the capacity per nozzle.
a. 3.6 ha/hr
b. 1.6 ha/hr
c. 2.2 ha/hr
d. 1.4 ha/hr
53. A rice husk stove boils 2 liters of water and subsequently evaporated 0.5
f fuel
consumed in boiling and evaporating water is 1.5 kg. What is the thermal
efficiency of the stove? Assume a heat of vaporization of water equal to
540 kCal/kg and a heating value of fuel equal to 3,000 kCal per kg.
a. 5.2 %
b. 9.2 %
c. 12.5 %
d. None of the above
54. The thermal efficiency of a 1.2 kW biomass stove is 15%. If wood with
heating value of 4,000 kcal per kg is used as fuel, what is the wood
consumption per hour?
55. What is the required airflow to gasify rice husk in a gasifier that
consumes 40 kg per hour of fuel? Consider an equivalence ratio of 0.3.
a. 56 kg of air per hr
b. 70 kg of air per hr
c. 86 kg of air per hour
d. None of the above
56. If the amount of heat used in removing the moisture from the grains in a
continuous-flow dryer is 3000 kJ/hr, what is the heat utilization
efficiency of the dryer if the burner uses 6000 kJ/hr of fuel?
a. 10%
1
b. 15%
c. 35%
d. 50%
57. A central part of a plow where the share, moldboard, and landside are
attached.
a. Frame
b. Frog
c. Shank
d. None of the above
a. Disk distance
b. Disk clearance
c. Disk spacing
d. None of the above
a. Fusibility
b. Malleability
c. Ductility
d. All of the above
60. Determine the bore of an engine if its clearance volume is 7.18 cc,
compression ratio is 8:1 and stroke is 4 cm.
a. 2 cm
b. 4 cm
c. 6 cm
d. 8 cm
a. ¼ hp
b. 1.0 hp
c. 1 ½ hp
d. b and c
a. direct coupling
b. chain and sprocket
c. belt and pulley
d. gears
1
64. Theoretically, the intake valve:
a. gear box
b. differential
c. clutch
d. power take-off
67. The development of a desirable soil structure for a seedbed does not
include:
SWEff
68. In the equation C = 10 , C is capacity expressed in:
a. m2/h
b. m2/day
c. ha/h
d. ha/day
a. 75%
b. 80%
c. 85%
d. 90%
1
71. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The
maximum draft and percent increase in draft due to speed are:
a. 55 hp
b. 60 hp
c. 65 hp
d. 70 hp
a. 0.25 ha/hr
b. 0.3 ha/hr
c. 0.35 ha/hr
d. 0.4 ha/hr
73. Primary tillage equipment that cuts the soil to a depth of 6 to 18 inches
is called:
a. moldboard plow
b. subsoiler
c. chisel plow
d. spiral plow
74. A 3-bottom plow is plowing at a speed of 8 kph. The effective width per
plow bottom is 25 cm. If the plowing efficiency is 80%, what is the
theoretical field capacity?
a. 0.4 ha/hr
b. 0.6 ha/hr
c. 0.7 ha/hr
d. None of the above
75. Time value of money and interest rate utilized together generate this
concept which means that different sums of money at different times can
be equal in economic value.
a. equivalence
b. equalization
1
c. equilibrium
d. equestrian
76. A savings loan offers a 5.25% rate per annum compounded daily. What is
the effective annual rate?
a. 5.31%
b. 5.39%
c. 5.54%
d. 5.65%
77. An agriculturist considers an asset which will cost P90,000 at the time
of purchase. It has a ten-year life and a salvage value of P2,000. What
is the book value of the asset after 3 years using straight line
depreciation?
a. P8,800
b. P26,400
c. P63,600
d. P81,200
78. Recommended chain and sprocket drive for tractor powered by 3.73 to 5.22
kW gasoline engine.
79. Recommended chain and sprocket drive for tractor powered by 5.22 kW and
above gasoline engine.
80. Welding by heating and then forcing the pieces together is called .
a. Fusion welding
b. Pressure welding
c. Inertia Welding
d. All of the above
81. The most common form of gas welding uses the gases .
a. Acetylene and air
b. Acetylene and hydrogen
c. Acetylene and oxygen
d. All of the above
a. Flow welding
b. Resistance welding
c. Forge welding
d. None of the above
1
83. The metal that is melted from a pieces being joined is called the .
a. Filler metal
b. Weld metal
c. Base metal
d. None of the above
a. Arc welding
b. Gas welding
c. Spot Welding
d. None of the above
a. P79,430
b. P88,620
c. 96,780
d. P111,010
a. P9,450
b. P11,380
c. P14,500
d. P17,420
88. An agricultural machine is purchased for P100,000 and has a useful life of
12 years. At the end of 12 years, the salvage value is P13,000. By
straight line depreciation, what is the accumulated depreciation at the
end of 8 years?
a. P58,000
b. P42,000
c. P36,000
d. P64,000
a. P79,430
b. P88,620
c. 96,780
1
d. P111,010
1
90. The time required for savings or sales to offset first costs, without
regard for the time value of money is called
a. Tail piece
b. Thrash board
c. Coulter
d. None of the above
a. Boom
b. Sprinkler laterals
c. Sprayer nozzle set
d. None of the above
a. Tail piece
b. Thrash board
c. Coulter
d. None of the above
96. What is the required drawbar pull for a 5-meter tractor drawn spike tooth
harrow with a specific draft of 89 kg/m?
a. 345 kg
b. 445 kg
c. 500 kg
d. None of the above
1
a. 8 hp
b. 10 hp
c. 2 hp
d. None of the above
a. Roller tiller
b. Packer
c. Roller harrow
d. None of the above
99. A primary or secondary tillage implement used for broadcast or for strip
tillage and also used as chemical incorporators prior to planting.
a. Roller tiller
b. Roller harrow
c. Packer
d. None of the above
a. Subsoiler
b. Bullet plow
c. Mole plow
d. All of the above
1
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(K)
a. Contact
b. Stomach
c. Systemic
d. All of the above
3. A hitch system for a tractor suitable for large, heavy implement for
trailer.
a. constant pressure
b. constant temperature
c. constant volume
d. constant enthalpy
a. belt horsepower
b. brake horsepower
c. drawbar horsepower
d. indicated horsepower
6. One way of increasing engine power is to force more air into the cylinder
so that more power can be produced from each power stroke. This process
which uses a type of air compression device powered by the engine
crankshaft is called:
a. turbocharging
b. supercharging
c. power charging
d. air charging
1
7. This fuel is made by partial combustion of carbonaceous substances like
coal, wood, charcoal, sawdust and other similar materials in an
atmosphere of air and steam. It is a mixture of carbon monoxide,
hydrogen, methane, nitrogen and carbon dioxide.
a. gasohol
b. producer gas
c. natural gas
d. straight-run fuel
a. ethanol
b. methanol
c. isopropyl alcohol
d. gasohol
a. oxygenation
b. carburetion
c. fuel injection
d. fuel induction
a. muffler
b. header
c. turbocharger
d. catalytic converter
12. It is the ratio of the actual weight of fuel inducted by the engine
during the intake stroke to the theoretical weight of air that should
have been inducted by filling the piston displacement volume with air at
atmospheric temperature and pressure.
a. volumetric capacity
b. volumetric parameter
1
c. volumetric efficiency
d. volumetric measure
13. A 85 mm × 85 mm engine runs at 2,000 rpm. What is the maximum piston
speed inside the cylinder?
a. 105 m/s
b. 17.8 m/s
c. 25 m/s
d. 75 m/s
a. 40%
b. 35%
c. 33%
d. 25%
15. A 4-cylinder 120 mm × 100 mm engine turns at 1,750 rpm. If the individual
cylinder’s clearance volume is 110 cm3, what is the engine’s compression
ratio?
a. 8:1
b. 9:1
c. 10:1
d. 11:2
16. Among the fuels that belong to the paraffin group, this has three carbon
atoms in its molecular structure. It is the main component of LPG.
a. pentane
b. ethane
c. butane
d. propane
18. How much water is produced by an engine each hour if it burns 25 liters
of premium gasoline per hour?
a. 20.45 liters
b. 25.93 liters
c. 30.56 liters
d. 32.55 liters
a. 42 kW
1
b. 31 hp
c. 16 kW
d. 28 kW
20. It is the amount paid for hiring equipment and operator services to
perform a certain task.
21. Tractor A can cover a 1-Ha field in 2 hrs, tractor B in 3 hrs, and
tractor C in 6 hrs. How long will it take to cover a 1-Ha field if the
three tractors worked together?
a. 0.5 hr
b. 1.0 hr
c. 1.5 hr
d. 2.0 hr
QxH
22. In the equation for horsepower, Hp = , Q is pump output in:
3960xEff
a. gallons
b. gpm
c. liters
d. lps
23. A hydro site offers a head of 50 m and a flow of 1.2 m3/s. With an
alternator speed requirement of 1500 rpm in a direct-drive transmission,
compute the specific speed of the turbine for the system. Assume a
turbine efficiency of 70%.
a. 230
b. 250
c. 240
d. 210
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
25. A raised ridge left at the center of the strip of land when plowing
started center to center.
a. Back furrow
b. Dead furrow
c. Furrow
d. All of the above
1
26. Which of the following is not a part of a typical lift pump?
1
a. inlet valve
b. piston
c. plunger
d. bucket valve
27. What is the probable height of the flame in a step-grate stove with a
power output of 1000 BTU/hr?
a. 41.9 mm
b. 48.9 mm
c. 47.9 mm
d. 45.9 mm
28. Compute the power that can be generated by a hydro-turbine with water
input of 40 lps with a head of 20 m. The turbine efficiency is 70%.
a. 4.5 KW
b. 2.5 KW
c. 5.5 KW
d. 1.5 KW
29. Soil cut, lifted, inverted and thrown to one side of the blow bottom is
termed:
a. furrow
b. furrowslice
c. backfurrow
d. Deadfurrow
30. The sequence of events which make up the cycle of operation of an engine
is:
a. I-C-P-E
b. I-P-C-E
c. C-E-I-P
d. P-I-C-E
a. Furrow opener
b. Metering device
c. Covering device
d. None of the above
a. 2-wheel tractor
b. compact tractor
c. standard tractor
d. general-purpose tractor
a. 0.176 ha/hr
b. 0.336 ha/hr
c. 0.576 ha/hr
d. 0.896 ha/hr
36. Which of the following countries follow the mechanization model of low
land area to farmer ratio?
a. Thailand
b. Philippines
c. Malaysia
d. Indonesia
a. 200 liters
b. 300 liters
c. 400 liters
d. 500 liters
38. The engine crankshaft provides 30 hp at 1700 rpm. What is the torque
exerted?
a. 100 ft-lb
b. 93 nt-m
c. 126 nt-meter
d. 60 nt-meter
39. A prony brake test of a motor gave the following data: Force = 1.5 lb;
Length of arm = 2 ft; N (rpm) = 1720. What is the power developed?
a. 0.98 hp
b. 0.98 kw
c. 1.523 kw
d. 1.523 hp
40. The ideal air-fuel ratio for using kerosene as an engine fuel is :
a. 10:1
b. 15:1
c. 13:1
d. 12:1
1
41. What is the average linear speed of the piston for a 4.5 × 6 in. engine
with a crankshaft speed of 1000 rpm.
a. 8 m/s
b. 1,900 in/min
c. 160 ft/min
d. 4,787 cm/min
42. What is the piston displacement volume in liters of a four stroke cycle
4-cylinder 15 × 18 cm engine rotating at 2000 rpm.
a. 12.72
b. 63.30
c. 15.83
d. 79.12
43. A hand tool that permits the creation of threads on rods and shafts.
44. A tractor drive wheel under load rotates at 1200 revolution in passing a
newly cultivated field. At no load, the tractor drive wheel is able to
rotate at 1125 revolution. What is the percent slippage of the tractor
drive wheel?
a. 5.6 %
b. 6.2 %
c. 8.1 %
d. None of the above
45. It is the ratio of the actual weight of fuel inducted by the engine
during the intake stroke to the theoretical weight of air that should
have been inducted by filling the piston displacement volume with air at
atmospheric temperature and pressure.
a. volumetric capacity
b. volumetric parameter
c. volumetric efficiency
d. volumetric measure
a. 105 m/s
b. 17.8 m/s
c. 25 m/s
d. 75 m/s
47. Assume that you are the Agricultural Engineer of a 500-hectare corn farm
with soil type that gives 10 psi draft when plowing at a speed of 4
km/hr. Compute the drawbar horsepower required to pull a three-disk plow
with effective cut of 12 inches per disk at a plowing depth of 6 inches.
a. 15.3 hp
b. 14.3 hp
c. 13.3 hp
d. 11.3 hp
1
48. A diesel engine was tested for a continuous 3 hours of operation. It
consumed at total of 5 liters and developed a constant power of 7.5 kW.
If the fuel contains 45.46 MJ/kg, what is the approximate thermal
efficiency?
a. 40%
b. 35%
c. 33%
d. 25%
a. 2320 rpm
b. 2420 rpm
c. 2520 rpm
d. 2620 rpm
50. The following tools could be used for lay out work, except .
a. micrometer
b. all of the above
c. marking gauge
d. none of the above
a. Weight
b. Piece
c. a and b
d. Bags
52. In construction sites, shops and other work places, which should come
first?
a. Profit
b. cost cutting
c. Safety
d. Breaks
53. Field operating pattern where it has trips that parallel with each other,
are incremented successively by the operating width of the implement, and
initiated at one boundary and terminated at the opposite.
a. Circuitous pattern
b. Headland pattern
c. Alternation pattern
d. None of the above
a. Circuitous pattern
1
b. Headland pattern
c. Alternation pattern
d. None of the above
a. Circuitous pattern
b. Headland pattern
c. Alternation pattern
d. None of the above
56. An angle of the plow in reference to the direction of travel of the plow.
a. Tilt angle
b. Disk angle
c. All of the above
d. None of the above
a. 53 hp
b. 35 hp
c. 65 hp
d. None of the above
58. How many times the intake valve opens in 4 stroke-cycle engine running at
2000 rpm.
a. 1000
b. 2000
c. 500
d. None of the above
a. Differential gear
b. Clutch
c. Actuator
d. None of the above
61. A 4-ha field was prepared using a 1.2-m floating power tiller. It took 20
hrs to complete the operation at a speed of 2.5 kph. Determine the field
efficiency
a. 67%
b. 70%
1
c. 76%
d. 80%
63. Determine the tractor power required to work the soil using four 14-inch
moldboard plow bottoms at a depth of 10 inches and 6 kph. Field
efficiency = 75%. Soil specific draft = 8 lbs/inch2. Increase in draft
due to speed = 138%.
a. 50 hp
b. 60 hp
c. 70 hp
d. 80 hp
a. Dairy animals
b. Draft animals
c. Game animals
d. None of the above
a. 0.1 hp
b. 0.5 hp
c. 0.3 hp
d. None of the above
a. 4000
b. 8000
c. 2000
d. None of the above
67. A person is doing a work for 4 hours, what is the power developed by the
person?
a. 0.09 hp
b. 0.13 hp
c. 0.15 hp
d. None of the above
a. Rotor
b. Generator
c. Motor
d. None of the above
a. Hydro power
b. Biomass power
c. Wind power
d. None of the above
72. Vehicle designed to pull, propel, and supply power to operate machinery
used in agricultural operation.
a. Agricultural Tractor
b. Automobile
c. Payloader
d. None of the above
a. In front
b. At the rear
c. At the operator’s seat
d. None of the above
74. A substance that is added to the tractor for the purpose of changing
traction and stability.
a. Ballast
b. Cage wheel
c. Plow
d. Hydraulic lift
75. Power drive that can be found at the rear of the tractor to propel power
implements and stationary machines.
76. It is the minimum vertical distance between the soil surface and a
potentially obstructing machine element.
a. Vertical clearance
b. Machine height
c. Ground clearance
d. All of the above
1
77. Angle in vertical plane perpendicular to the direction of travel between
the tool axis and the soil surface.
a. Tilt angle
b. Side angle
c. Lift angle
d. None of the above
a. Share
b. Shin
c. Moldboard
d. All of the above
80. The part of the moldboard plows which is used to cut the soil.
a. Share
b. Shin
c. Moldboard
d. All of the above
81. It is a part of the plow bottom which helps to counteract the side
pressure exerted by the furrow slice.
a. Shin
b. Landside
c. Share
d. None of the above
82. A type of implement which is directly attached to the tractor and its
power lift is dependent upon the tractor engine for its general
operation.
a. Semi-integral
b. Integral-mounted
c. Trailing or pull
d. None of the above
a. Integral-mounted
b. Trailing
c. Semi-integral
d. None of the above
84. A type of plow which is equipped with plow bodies which turns the furrow
slice to one side only.
a. One-way plow
b. Two-way plow
1
c. Two of the above
d. None of the above
85. A type of plow which has two sets of bodies mounted symmetrically on a
share frame which can be rotated over 180 degrees along the longitudinal
axis.
a. Reversible plow
b. One-way plow
c. Lister plow
d. None of the above
a. Size of plow
b. Plowing depth
c. Type of soil
d. All of the above
a.1-6-8-4-3-2-7-5
b.1-8-7-3-6-5-4-2
c.All of the above
d.None of the above
a. 200
b. 100
c. 50
d. None of the above
90. Part of an engine that converts reciprocating motion into rotary motion.
a. Crankshaft
b. Piston
c. Camshaft
d. None of the above
a. Octane rating
b. Cetane rating
c. Fuel index
d. None of the above
a. 7.46 kw
b. 76.4 watt
c. 0.746 kw
d. None of the above
94. A substance that decreases the effect of friction and which is commonly
obtained from petroleum products.
a. Lubricant
b. Gear oil
c. Grease
d. All of the above
95. Among the fuels that belong to the paraffin group, this has three carbon
atoms in its molecular structure. It is the main component of LPG.
a. pentane
b. ethane
c. butane
d. propane
96. Wheel slip test of a tractor had shown that a wheel rotates by two-and-a-
half revolutions at a distance of 20 meters. If the tractor wheel has a
diameter of 2 meters, what is the percentage slip of the tractor wheel?
a. 27.89%
b. 47.89%
c. 67.89%
d. 17.89%
97. This vertical axis windmill has a very low tip speed ratio and power
coefficient of less than 0.2. The rotor is usually constructed using a
cylindrical tank cut axially into two and installed vertically face to
face at an offset position.
a. Savonious
b. Cretan
c. Darrieus
d. Multibladed
a. 5500 kg/ha
b. 5550 kg/ha
c. 5000 kg/ha
1
d. 5555 kg/ha
a. herbicides
b. insecticides
c. fungicides
d. pesticides
1
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(L)
a. centrifugal pump
b. mixed flow pump
c. air lift pump
d. all of the above
QxH
2. In the equation for horsepower, Hp = , Eff is:
3960xEff
a. efficiency of pump
b. efficiency of transmission
c. efficiency of prime mover
d. efficiency of the system
a. 90% Eff
b. 95% Eff
c. 98% Eff
d. 100% Eff
a. kind of crop
b. timeliness of operation
c. topography
d. farm size
a. rubbing action
b. impact action
c. stripping action
d. all of the above
1
a. Philippine Agricultural Engineering Society
1
b. Professional Agricultural Engineering Society
c. Philippine Agricultural Engineering Standards
d. Professional Agricultural Engineering Standards
8. A 4-ha field was plowed using a three-bottom 12-inch tractor-mounted
moldboard plow. It took 11 hours to complete the operation at a tractor
speed of 5 kph. Find the field efficiency.
a. 75%
b. 80%
c. 85%
d. 90%
9. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the distance traveled to plow the field.
a. 66.67 km
b. 133.33
c. 200 km
d. 266.67 km
10. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
a. 5 kg/ha
b. 11 kg/ha
c. 8 kg/ha
d. 20 kg/ha
11. Determine the size of the diesel engine to be used for a 4 inches X 4
inches centrifugal pump. Pump discharge is 200gpm. Total head is 24 ft.
Pump efficiency is 55%. V-belt efficiency is 95%. And air-cooled diesel
engine delivery rating is 70%.
a. 1.6 hp
b. 2.4 hp
c. 3.3 hp
d. 4.7 hp
12. A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2
minutes. When unloading on-the-go, it has an 86% field efficiency.
Field yield is 3.5 tons/ha. What would be the field efficiency if the
combine stopped to load?
a. 70%
b. 75%
c. 80%
1
d. 85%
13. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The
maximum draft and percent increase in draft due to speed are:
a. 55 hp
b. 60 hp
c. 65 hp
d. 70 hp
a. 0.25 ha/hr
b. 0.3 ha/hr
c. 0.35 ha/hr
d. 0.4 ha/hr
16. Before the adoption of mechanized harvest and postharvest operations for
rice, field losses were:
a. 5 – 15%
b. 10 – 27%
c. 10 – 37%
d. 20 – 30%
a. up to 3 inches
b. 3 to 6 inches
1
c. 6 to 18 inches
d. 6 to 36 inches
19. Primary tillage equipment that cuts the soil to a depth of 6 to 18 inches
is called:
a. moldboard plow
b. subsoiler
c. chisel plow
d. spiral plow
20. The perpendicular distance between the wing and point of the share
determines the:
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow
22. Determine the theoretical field capacity when a tractor operating at 6.4
kph is pulling four-36 cm moldboard plow bottoms at a depth of 20 cm.
a. 7.2 ha/day
b. 0.72 ha/hr
c. 0.18 ha/hr
d. 1.8 ha/day
23. Planters designed to plant seeds continuously in rows with row spacing
greater than 36 cm is called:
a. furrow opener
b. metering device
c. seed tube
d. double-disc closer
a. furrow opener
b. metering device
c. seed tube
d. furrow closer
26. Operation with the highest manual labor requirement for lowland rice:
1
a. plowing with carabao
b. hand transplanting
c. weeding with push-type weeder
d. manual harvesting
a. tank
b. pump
c. pressure gage
d. nozzle
a. inlet valve
b. piston
c. plunger
d. bucket valve
a. effectiveness
b. economics
c. efficiency
d. liquidity
a. responsible
b. politician
c. none of the above
d. decision maker
a. Management
b. Scientific Method
c. Farm Management
d. Agricultural Economics
33. The term used for the process of management where it is aimed at getting
members of the organization to move in the direction that will achieve
its objectives.
a. Planning
1
b. Directing
c. Organizing
d. Staffing
34. The management process by which managers think their through in advance
and where the organization’s mission, vision, goals and objectives are
made is called .
a. organizing
b. staffing
c. planning
d. controlling
35. Determine the efficiency of a 60-V starting system if the maximum power
required for cranking the engine is 10 hp and if the discharge for the
battery when the engine is cranked is 250 amperes.
a. 50%
b. 40%
c. 45%
d. 55%
36. One source of labor provided from outside of the family is called:
a. hired labor
b. labor management
c. family labor
d. fieldwork labor
37. The term “marketing” is best identified in today’s business world with
the concept of:
a. making a sale
b. satisfying customer needs
c. creating customer needs
d. communication through advertising
a. demand
b. exchange
c. desire
d. need
a. communication
b. customer cost
c. customer solution/satisfaction
d. commitment
1
41. A piece of wood that is one square foot and one inch thick.
a. stock
b. power routers
c. lumber
d. board foot
42. Fasteners that are externally threaded to allow the part being assembled
to be easily dismantled.
a. rivets
b. Bolts
c. hinges
d. none of the above
43. A list of all the different pieces of materials needed for a job. It is
also called a “finish-stock list”.
a. bill of materials
b. a and c
c. working drawing
d. project plan
44. It refers to freshly-cut trees, raw logs and large sizes of sawn logs
that are usually 4 inches thick.
a. Sanded
b. Timber
c. Lumber
d. oxogens
a. Monocots
b. Dicots
c. Hardwoods
d. none of the above
46. Refers to tools that are driven by electric motor, hydraulics, air, gas
engine, or forces other than, or in addition to human power. They are
generally stationary and are usually fixed in the shop.
47. Machines with rotating knives that dress the edges of boards to a uniform
thickness.
a. Planers
b. grinders
c. Jointers
d. band saw
48. Coco lumber,buho, tinikan, sawali are all construction materials. They
are all .
1
a. Hardwoods
b. monocots
c. Softwoods
d. Dicots
a. 1
b. 4
c. 2
d. 3
50. Types of guards designed to prevent contact with the moving parts by a
person and/or clothing.
a. Shield
b. cover
c. casing
d. aota
a. 0.8 kW
b. 1.0 kW
c. 1.2 kW
d. 1.5 kW
52. This must be high enough in order to self-ignite the air-fuel mixture in
a diesel engine.
a. compression temperature
b. intake pressure
c. valve compression
d. engine pressure
53. A power circular saw which rolls on a horizontal arm and has a blade that
could be raised or lowered and the arm could be rotated up to 45 deg in
both direction.
54. Materials that are usually very corrosion resistant and are used mostly
for food handling equipments.
a. copper
b. mild steel
c. lead
d. stainless steel
1
55. Which illustrates proper anaerobic digestion process?
56. White sugar, which sells for P26.50 per kg-pack, can be repacked and sold
by a retailer at a variable cost of P200 per 50kg-sack. If each sack of
sugar costs P750 and fixed costs amount to P30,000 per month, how many
sacks of white sugar must the retailer repack and sell each month to
break even?
a. 80 sacks
b. 70 sacks
c. 60 sacks
d. 90 sacks
a. disc harrow
b. field cultivator
c. packer
d. disc plow
60. An engine with all intake valves in the cylinder head and all exhaust
valves in the cylinder block.
a. L-head
b. T-head
c. F-head
d. I-head
61. A machine initially worth P50,000 depreciates in value each year by 20%
of its value at the beginning of that year. Find its book value when it
is 9 years old.
a. P6,524.90
b. P6,690.12
c. P6,690.12
d. P6,710.89
1
a. type and size
b. parts and components
c. safety markings
d. country of manufacture
a. 39.5%
b. 56.9%
c. 53.9%
d. 59.3%
a. oil reservoir
b. support for the shafts
c. housing for moving parts
d. nota
a. 3.78
b. 7.83
c. 1.37
d. 8.37
a. to increase friction
b. to reduce compressive stress
c. to increase bearing surface
d. to tighten bolt-and-nut connection
a. recognize hazards
1
b. conduct safety seminars
c. conduct workplace inspections
d. conduct incident investigations
a. layout tools
b. turning tools
c. cutting tools
d. holding tools
71. Its design and structure permit it to drive large drill bits and apply
heavy pressures on the bits.
a. hand drill
b. drill press
c. breast drill
d. ratchet brace
a. working drawing
b. bill of materials
c. project plan
d. none of the above
73. It has a motor-driven circular blade that may be adjusted for angled cuts
and is fed down to the material being cut.
a. Cut
b. join metals
c. thread
d. a, b, and d
a. Nails
b. all of the above
c. bolts
d. none of the above
76. In an ideal Diesel engine, the combustion of fuel occurs at :
a. constant pressure
b. constant enthalpy
c. constant temperature
d. constant volume
1
77. In an ideal Otto engine, the combustion of fuel occurs at :
a. constant pressure
b. constant volume
c. constant temperature
d. constant enthalpy
a. belt horsepower
b. indicated horsepower
c. brake horsepower
d. drawbar horsepower
79. A tandem-type disc harrow has a width of cut of 5.0 m, with each disc
measuring 620 mm in diameter. If the spacing between discs is 280 mm, how
many discs are there in the harrow?
a. 16
b. 20
c. 24
d. 32
80. The Philippine Government has devised a plan on the development of the
use of biofuels and renewable energy sources, also known as the BiGSHOW,
where Bi stands for Biofuels/ Biomass, G for Geothermal, S for Solar, H
for hydroelectric, O for ocean. What does W represents?
a. Water
b. wind
c. waste
d. wastewater
81. The threshing action where grains are detached from their panicles when
the straw is pulled through a “V” shaped configuration is called:
a. rubbing action
b. impact action
c. stripping action
d. a and b
a. 1985
b. 1990
c. 1995
d. 2000
83. What is the theoretical field capacity of a 3-m combine traveling at 100
meters in 52 seconds?
a. 0.03 ha/hr
b. 0.57 ha/hr
c. 1.45 ha/hr
d. 2.08 ha/hr
85. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the horsepower output of the animal:
a. 0.66 hp
b. 0.88 hp
c. 0.77 hp
d. 1.0 hp
86. The calibration of the 9X7 (9 rows X 7 inches row spacing) grain drill is
shown below. Row spacing is to be adjusted to 14 inches. Groundwheel
diameter is 1.22 m.
a. 25 kg/ha
b. 68 kg/ha
c. 38 kg/ha
d. 79 kg/ha
87. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field
is 42 tons. The operating speed is 4.8 kph. The time for turning on the
headland at the ends of the 500-m field is 15 seconds. Find the
theoretical field capacity of the combine:
a. 1.2 ha/hr
b. 2.4 ha/hr
c. 3.6 ha/hr
d. 4.8 ha/hr
88. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The
maximum draft and percent increase in draft due to speed are:
Determine the highest gear setting that can sustain the draft requirement for
the operation:
1
a. 1L
b. 2L
c. 3L
d. 4L
a. 15
b. 20
c. 25
d. 30
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
92. Select a farm operation that can only be done with the use of a machine:
a. plowing
b. spraying
c. harvesting
d. threshing
93. Which of the following agencies does not belong to the Department of
Agriculture?
a. BPRE
b. BPI
c. AMMDA
d. RAEG
94. The use of machinery does not only imply ownership, the following are
also considered viable options:
a. renting
b. custom hire service
c. joint ownership
d. borrowing
96. Part of the moldboard plow bottom that receives the furrowlice , lifts,
inverts and throws it to one side is called:
a. share
b. moldboard
c. landside
d. frog
a. moldboard plow
b. disc plow
c. subsoilers
d. rototiller
98. A company purchases an asset for P10,000.00 and plans to keep it for 20
years. If the salvage value is zero at the end of the 20 th year, what is
the depreciation in the 3rd year by SYD method?
a. P875.14
b. P785.41
c. P857.14
d. P758.14
SWEff
99. In the equation C = , S is speed of plowing in:
10
a. mps
b. kph
c. fpm
d. mph
100. Disc harrow consisting of four gangs of discs with two gangs in front
and two gangs at the rear is called:
(M)
1
1. Planter designed to plant seeds in rows and in hills is called:
2. It indicates the ratio of the amount of heat given off by the furnace to
the system and the heat used from the fuel.
a. Burning efficiency
b. Thermal efficiency
c. Heat utilization energy
d. None of the above
4. A rice hull gasifier reactor that produces less tar during operation.
a. Updraft
b. Cross draft
c. Down draft
d. All of the above
a. Wind power
b. Hydropower
c. Photovoltaic cell
d. None of the above
a. 80 watts
b. 125 watts
c. 95 watts
d. None of the above
a. Biofuel
b. Biogas
c. Gasifier
d. LPG
a. Production/postharvest machinery
b. Irrigation and drainage
c. agricultural structures
d. engineering materials
a. 0.09 ha/hr
b. 0.5 ha/hr
c. 0.36 ha/hr
d. 1.5 ha/hr
12. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the time required to plow the field:
a. 11.11 hrs
b. 22.22 hrs
c. 44.44 hrs
d. 66.66 hrs
13. Determine the time in hours to plow a 3-ha field using a 15-cm animal-
drawn plow at a speed of 4 kph and efficiency of 75%
a. 56 hrs
b. 66 hrs
c. 76 hrs
d. 86 hrs
14. If the speed ratio of the groundwheel over seedplate of a two-row corn
planter is 5.0, determine the plant population per hectare. Row spacing
is 75 cm. Groundwheel diameter is 60 cm. Ave. no. of seeds per hill is 2.
No. of cells of seedplate is 25. Ave. emergence of seeds is 85%.
a. 35,335 plts/ha
b. 45,445 plts/ha
c. 55,223 plts/ha
d. 60,071 plts/ha
1
15. Considering that there are 3M farms, 12M ha of agricultural lands and
assuming five farmers per farm, the human power contribution in the farm
is about:
a. 0.1 hp
b. 0.125 hp
c. 1.0 hp
d. 1.25 hp
16. A 4-ha field was prepared using a 1.2-m floating power tiller. It took 20
hrs to complete the operation at a speed of 2.5 kph. Determine the field
efficiency
a. 67%
b. 70%
c. 76%
d. 80%
17. Determine the tractor power required to work the soil using four 14-inch
moldboard plow bottoms at a depth of 10 inches and 6 kph. Field
efficiency = 75%. Soil specific draft = 8 lbs/inch2. Increase in draft
due to speed = 138%.
a. 50 hp
b. 60 hp
c. 70 hp
d. 80 hp
18. Determine the number of 13-cm animal drawn plows needed to complete
plowing a 3-ha field in one day (8 hrs/day). Field efficiency is 78% and
speed of travel is 3 kph.
a. 5 plows
b. 9 plows
c. 13 plows
d. 15 plows
19. If the speed ratio of seedplate over groundwheel of the two-row corn
planter is 0.20, determine the expected plant population/ha. Row spacing
is 75 cm. Groundwheel diameter is 60 cm. Average no. of seeds per hill is
2. Number of cells of seedplate is 20. Average emergence of seeds is 85%.
a. 48,000 plts/ha
b. 54,000 plts/ha
c. 60,000 plts/ha
d. 66,000 plts/ha
20. 5 pcs. of work benches are needed for the AE REVIEW 2011. The engineers
found out that they needed 10 pcs. of 2”x3”x12’ and 6 pcs. of 2”x2”x6’
for each work bench. How many board feet of lumber would they need for a
bench?
a. Open wrench
b. Adjustable wrench
c. Screw driver (Philip and Flat)
d. All of the above
a. Hitch point
b. Link point
c. Implement point
d. All of the above
a. Hitch point
b. Link point
c. Implement point
d. All of the above
25. It is the center to center distance between two front or rear wheels.
a. Wheel clearance
b. Wheel tread
c. Wheel distance
d. None of the above
1
29. PAES recommended thickness of drawbar for four-wheel agricultural
tractor.
a. width of planter
b. forward speed of planter
c. No. of seeds per hill
d. efficiency of planter
32. One hundred liters per second of water is falling at a head of 10 meters.
The turbine efficiency is 80%. What is the hydraulic power of the hydro
system?
a. 8.7 kw
b. 87 kw
c. 7.8 kw
d. None of the above
33. Average power density of solar heat striking the earth surface.
a. 1 kw/m2
b. 0.89 kw/m2
c. 0.58 kw/m2
d. None of the above
35. This vertical axis windmill has a very low tip speed ratio and power
coefficient of less than 0.2. The rotor is usually constructed using a
cylindrical tank cut axially into two and installed vertically face to
face at an offset position.
a. Savonious
b. Cretan
c. Darrieus
d. Multibladed
1
36. The Engineers are going to buy the wood materials from the J and P
Masangkay Contractors and Hardware Supplies, How much money do they need
to purchase the materials, if a board foot of lumber costs 24 pesos?
a. 2,016 pesos
b. 10,080 pesos
c. 2,400 pesos
d. none of the above
37. When the owner of the J and P hardware recognized the two engineers
purchasing the materials, he gave them a 10 % discount on the purchase.
How much the two engineers did paid the hardware?
39. Wrought iron, steel, cast iron, pig iron are all .
a. Alloys
b. a and b
c. ferrous metals
d. non-ferrous metals
a. flat head
b. Phillips head
c. square head
d. all of the above
41. What year was the metric system first used in the Philippines?
a. 1980
b. 1983
c. 1981
d. 1982
a. Schedule
b. gauge number
c. SAE number
d. ply rating
a. Governor
b. Accelerator
c. Actuator
d. None of the above
a. Indicated horsepower
b. Brake horsepower
c. Rated horsepower
d. None of the above
46. A device that meters the fuel air and mixes them into harmonious mixture
before the mixture enters the combustion chamber of an engine.
a. Governor
b. Air injector
c. Carburetor
d. All of the above
47. A device that permits the flow of fuel and of burned gases in one
direction only.
a. Check valve
b. Relief valve
c. Spark plug
d. None of the above
49. During the power stroke, which of the following valve is open?
a. Intake
b. Exhaust
c. Intake and exhaust
d. None of the above
a. 6
b. 12
c. 4
d. None of the above
1
51. The volume displaced by a piston in making upward and downward stroke.
52. At the downward stroke of two-stroke cycle, which of the events are
taking place.
53. The ratio of the clearance volume from the total volume.
a. Compression ratio
b. Air fuel ratio
c. Bore stroke ratio
d. None of the above
a. Brake horsepower
b. Indicated horsepower
c. Drawbar horsepower
d. Flywheel horsepower
55. Suppose a 4-cylinder engine has a bore of 3.5 in. and a stroke of 4.0
in., what is the engine displacement.
a. 154 in3
b. 175 in3
c. 225 in3
d. None of the above
56. An engine has piston displacement of 38.4 in3. If the clearance volume of
the cylinder is 2.5 in3, what is the compression ratio?
a. 1:12
b. 1:16
c. 1:8
d. None of the above
a. 100
b. 50
c. 25
d. None of the above
58. The space when the piston is at the top dead center
59. How many piston strokes are there in one revolution of a crankshaft.
a. One
b. Two
c. Four
d. None of the above
60. Engine having fuel injected into the combustion chamber near the end of
the combustion stroke and is ignited by heat of compression only.
a. Gasoline engine
b. Diesel engine
c. Steam engine
d. None of the above
a. 35 hp
b. 45 hp
c. 52 hp
d. None of the above
62. The sequence by which the cylinder delivers the power stroke.
a. Ignition
b. Firing order
c. Flash point
d. None of the above
a. Spark plug
b. Piston
c. Carburetor
d. None of the above
66. Two pistons running at the same time in the same direction but performing
different strokes.
1
a. Running mate
b. Firing order
c. Valve timing
d. None of the above
67. Distance of movement piston from the top dead to the bottom dead center.
a. Stroke
b. Bore
c. Valve clearance
d. None of the Above
68. Firing order of 4-cylinder engine.
a. 1-2-3-4
b. 1-3-4-2
c. 1-2-4-3
d. None of the above
a. 50
b. 20
c. 80
d. none of the above
70. This rating is given to diesel fuels for their ability to burn without
detonating as compared with the performance of reference fuels.
a. octane rating
b. cetane rating
c. heptane rating
d. alcohol rating
71. During the field demonstration of a rice reaper with 1.2-m cutter bar,
performance showed that the machine travels at an average speed of 3 kph.
The average width of the cutter bar actually utilized is 1.0 m. Time lost
for crossing the dike is 5 min/ha and for repair is 10 min/ha. Turning
and other idle time is 10% of the effective operating time while removing
field obstruction and clogging is 15 min/ha. What is the theoretical
field capacity of the machine?
a. 0.36 ha/hr
b. 0.25 ha/hr
c. 0.18 ha/hr
d. None of the above
a. 35.05 cm.
b. 30.55 cm
c. 53.05 cm
d. None of the above
73. Determine the size of the diesel engine to be used for a 4 inches X 4
inches centrifugal pump. Pump discharge is 200gpm. Total head is 24 ft.
1
Pump efficiency is 55%. V-belt efficiency is 95%. And air-cooled diesel
engine delivery rating is 70%.
a. 1.6 hp
b. 2.4 hp
c. 3.3 hp
d. 4.7 hp
74. The cutting mechanism most commonly employed by reapers and combines is:
a. to 2.5 kph
b. 2.5 to 4.0 kph
c. 4.0 to 6.5 kph
d. None of the above
a. Boom
b. Sprinkler laterals
c. Sprayer nozzle set
d. None of the above
a. Hardness
b. Toughness
c. Strength
d. All of the above
79. The effective field capacity of the rotary tiller tilling theoretically
at 0.4 ha/hr for efficiency of 85% is:
a. 0.34 ha/hr
b. 0.24 ha/hr
c. 0.43 ha/hr
d. None of the above
80. A single-bottom moldboard plows on a clay loam soil (8 psi draft) having
an effective width of cut of 0.3 m and a depth of cut of 15 cm. What is
the force exerted by a plow?
a. 2.30 kg
b. 2.53 kg
1
c. 3.10 kg
d. None of the above
81. What is the drawbar horsepower of the plow in item above if the plowing
speed is 5 kph?
a. 4.6 hp
b. 3.4 hp
c. 7.4 hp
d. None of the above
a. right turn
b. left turn
c. going straight
d. a and b
a. kerosene
b. methane
c. diesel
d. gasoline
84. Before the adoption of mechanized harvest and postharvest operations for
rice, field losses were:
a. 5 – 15%
b. 10 – 27%
c. 10 – 37%
d. 20 – 30%
86. A process of providing the engine with additional amount of air and fuel
using a small turbine propelled by engine exhaust gas to increase power
by about 30%.
a. Turbocharging
b. Supercharging
c. Air and fuel injecting
d. None of the above
a. Link point
b. Hitch pin
c. Hitch point
d. All of the above
1
88. Which of the following is not a source of energy for farming?
a. Solar energy
b. Wind energy
c. Biomass energy
d. None of the above
a. Human power
b. Draft Animal
c. Fossil fuel
d. All of the above
a. Biomass
b. Solar
c. Wind
d. All of the above
a. Gasoline engine
b. Diesel engine
c. Steam engine
d. None of the above
a. Gasoline engine
b. Diesel engine
c. Steam engine
d. None of the above
95. Turbo charging tractor engine will increase the power output
approximately by .
a. 10 – 20 %
b. 20 - 30 %
c. 30 – 40 %
d. None of the above
1
96. Integral mounted implement are usually attached to the tractor through a
.
99. A part of mechanism that they may be added to a functional power unit,
not utilizing its mechanical power for the purpose of enhancing the
performance of that unit.
a. Auxiliary unit
b. Spare parts
c. Accessory
d. None of the above
a. 1000 rpm
b. 540 rpm
c. 2000 rpm
d. None of the above
1
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(N)
a. Roll bar
b. Tractor shield frame
c. Roll-over protection structure
d. None of the above
a. 40 psi
b. 60 psi
c. 100 psi
d. None of the above
a. 75%
b. 80%
c. 85%
d. 90%
a. 1.6 hp
b. 2.4 hp
c. 3.3 hp
d. 4.7 hp
5. A 4-m combine traveling at 5 kph can empty its 1.5-ton grain tank in 2
minutes. When unloading on-the-go, it has 86% field efficiency. Field
yield is 3.5 tons/ha. What would be the field efficiency if the combine
stopped to load?
a. 70%
b. 75%
c. 80%
d. 85%
a. 3 men X 4 days
b. 6 men X 2 days
c. 12 men X 1 day
1
d. all of the above
a. 1.39 hours
b. 4.20 hours
c. 6.80 hours
d. None of the above
a. Boom
b. Shank
c. Gang
d. None of the above
a. Penetrate
b. Will not penetrate
c. Remain in position
d. None of the above
a. Bearing
b. Bushing
c. Gasket
d. All of the above
11. A steel containing 0.035 – 0.4% carbon and is widely used for production
of steel plate, structural steel, bars, etc.
a. Mild steel
b. Hard steel
c. Soft centered steel
d. All of the above
a. Tempering
b. Quenching
c. Annealing
d. None of the above
13. A gas-metallic arc welding which uses inert gas shielding to produce a
cleaner and sounder weld compare with conventional welding.
a. Gas welding
b. MIG welding
c. TIG welding
d. All of the above
1
14. A widely used method of welding aluminum, copper, stainless steel, and
other difficult-to-weld metals.
a. TIG welding
b. MIG welding
c. Gas welding
d. All of the above
a. Shear cutter
b. Plasma cutter
c. Acetylene gas cutter
d. All of the above
a. Ball bearing
b. Thrust bearing
c. Roller bearing
d. None of the above
a. V-belt
b. Timing v-belt
c. Flat belt
d. None of the above
21. When one pulley is to be driven horizontally and the other pulley is to
be driven vertically, what drive system would you recommend?
a. Open drive
b. Quarter-turn drive
c. Cross drive
2
d. All of the above
22. A thresher has a capacity of 30 cavans per hour. Three men are required
to operate the thresher. The other data are as follows:
Purchase price =P40,000 including engine
Utilization =1,500 hours per year, 8 hours/day
Estimated life = 7 years
a. 6,568.35/year
b. 784.56/year
c. 5,142.86/year
d. None of the above
23. What is the total fixed cost in the item above if the cost of money is
21% per annum?
a. 10, 542.86/year
b. 13, 542.86/year
c. 12, 542.86/year
d. None of the above
24. What is the total variable cost in the item above using the following
additional data?
Size of engine = 10 hp
Specific fuel consumption = 0.85 lb/BHP-hr
Cost of fuel = P13.60/liter
Fuel specific gravity = 0.76
Salary of Laborers = P100.00/day-person
a. 159,882.00/year
b. 234,765.00/year
c. 456,854.00/year
d. None of the above
a. P3.85/cavan
b. P2.87/cavan
c. P2.78/cavan
d. None of the above
26. It is a power transmission device used to deliver misaligned shaft.
a. Gears
b. Sprocket and chain
c. Universal joint
d. All of the above
a. Tool steel
b. Soft-centered steel
c. Molybdenum steel
d. None of the above
2
28. The perpendicular distance between the wing and point of the share
determines the:
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow
30. Determine the theoretical field capacity when a tractor operating at 6.4
kph is pulling four-36 cm moldboard plow bottoms at a depth of 20 cm.
a. 9.2 ha/day
b. 0.92 ha/hr
c. 0.18 ha/hr
d. 1.8 ha/day
31. Compute the average power output of a stove with a fuel consumption rate
of 5 kg of rice hull in 4 hours operation. The net calorific value of
rice hull is 3000 kcal/kg.
a. 3750 kcal/hr
b. 3550 kcal/hr
c. 3350 kcal/hr
d. 3450 kcal/hr
a. furrow opener
b. metering device
c. seed tube
d. double-disc closer
33. Suppose an engine has a piston displacement of 38.4 in3. If the clearance
volume of the cylinder in 2.5 in3, what is its compression ratio?
a. 12.4
b. 19.4
c. 16.4
d. 11.4
2
35. A 4-cylinder 120 mm × 100 mm engine turns at 1,750 rpm. If the
individual cylinder’s clearance volume is 110 cm3, what is the engine’s
compression ratio?
a. 8:1
b. 9:1
c. 10:1
d. 11:1
36. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the horsepower output of the animal:
a. 0.66 hp
b. 0.88 hp
c. 0.77 hp
d. 1.0 hp
37. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The
maximum draft and percent increase in draft due to speed are:
Determine the highest gear setting that can sustain the draft requirement for
the operation:
a. 1L
b. 2L
c. 3L
d. 4L
a. furrow opener
b. metering device
c. seed tube
d. furrow closer
a. moldboard plow
b. disc plow
c. subsoilers
d. rototiller
SWEff
40. In the equation C = 10 , S is speed of plowing in:
2
a. mps
b. kph
c. fpm
d. mph
41. Disc harrow consisting of four gangs of discs with two gangs in front and
two gangs at the rear is called:
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr
43. A 4-wheel tractor with 3X14 inches moldboard plow is to operate on clay
loam soil (specific draft = 0.56 kg/cm2) at a depth of 25.4 cm. The
maximum draft and percent increase in draft due to speed are:
a. 45 hp
b. 50 hp
c. 55 hp
d. 60 hp
a. up to 3 inches
b. up to 6 inches
c. up to 12 inches
d. up to 18 inches
45. Bend downward of the point of the share to make the plow penetrate the
soil to the proper depth is:
a. tilt angle
b. disc angle
c. horizontal suction
d. vertical clearance
47. Operation with the highest manual labor requirement for lowland rice:
48. Determine the theoretical field capacity when a tractor operating at 6.4
kph is pulling four-36 cm moldboard plow bottoms at a depth of 20 cm.
a. 7.2 ha/day
b. 0.72 ha/hr
c. 0.18 ha/hr
d. 1.8 ha/day
a. intake manifold
b. intake valve
c. TDC
d. fuel injector
a. 42 kW
b. 31 hp
c. 16 kW
d. 28 kW
51. The engine crankshaft provides 30 hp at 1700 rpm. What is the torque
exerted?
a. 100 ft-lb
b. 93 nt-m
c. 126 nt-meter
d. 60 nt-meter
52. A prony brake test of a motor gave the following data: Force = 1.5 lb;
Length of arm = 2 ft; N (rpm) = 1720. What is the power developed?
a. 0.98 hp
b. 0.98 kw
c. 1.523 kw
d. 1.523 hp
a. moldboard plow
2
b. disc plow
c. subsoilers
d. rototiller
SWEff
54. In the equation C = , S is speed of plowing in:
10
a. mps
b. kph
c. fpm
d. mph
55. Disc harrow consisting of four gangs of discs with two gangs in front and
two gangs at the rear is called:
a. row spacing
b. ave. seed emergence
c. forward speed
d. groundwheel diameter
58. Soil working part utilized by push-type weeders for dryland operation is:
a. blade type
b. tine type
c. rotary type
d. all of the above
59. Which of the following statements is incorrect: The higher the pressure,
2
a. Furrow crown
b. Furrow slice
c. Furrow wall
d. None of the above
a. Soil texture
b. Soil structure
c. Soil moisture
d. All of the above
63. What is the total piston displacement for a 4 ½- by 6-in cylinder engine
having 4 cylinders and the crankshaft speed is 1000 rpm.
a. 381.7
b. 763.4
c. 1,145.1
d. 190.8
a. Hydro power
b. Biomass power
c. Wind power
d. None of the above
65. One hundred liters per second of water is falling at a head of 10 meters.
The turbine efficiency is 80 %. What is the hydraulic power of the hydro
system?
a. 8.7 kw
b. 87 kw
c. 7.8 kw
d. None of the above
66. For a 12-liter knapsack sprayer with swath of 1.6 m, nozzle discharge of
1.5 liters/min, and a walking speed of 18 m/min, computes for the amount
of a certain chemical to mix with water per loading. Application rate is
5kg/ha.
a. 100 grams/load
b. 115 grams/load
c. 125 grams/load
d. 140 grams/load
a. a single-piston cylinders
b. a six-piston cylinders
c. an eight-piston cylinders
d. None of the above
a. Throttling
2
b. Clutching
c. Atomization
d. None of the above
69. A device which uses fluid power to produce mechanical force and motion.
a. Governor
b. Accumulator
c. Actuator
d. None of the above
70. A turbine used for hydro system wherein pressurized water is converted to
a high-speed jet by letting the water pass through a nozzle.
a. Impulse turbine
b. Reaction turbine
c. Water wheel
d. None of the above
a. 489 m/min
b. 537 m/min
c. 685 m/min
d. None of the above
73. One-thousand gallons per minute (1000 gpm) of water is to be pumped from
a river to a farm 150-ft above the river. What is the required horsepower
to drive the pump, considering a pump efficiency of 70 % and the friction
and other losses of 20 % of the static head.
a. 61.8 hp
b. 64.8 hp
c. 60.8 hp
d. 67.8 hp
a. 1.50 kW
b. 1.95 kW
c. 2.01 kW
d. None of the above
75. What is the speed ratio for the drive in the item above if the motor
pulley is 4 inches?
a. 1: 20
b. 1: 29
2
c. 1: 38
d. None of the above
76. A solar dryer is used to reduce the moisture content of four tons of
paddy rice from 25% to 15% wet basis. What is the amount of moisture that
can be removed from the paddy?
a. 0.17 ton
b. 0.27 ton
c. 0.37 ton
d. 0.47 ton
77. Which of the following is suitable for the drive in the item above?
a. Type A
b. Type B
c. Type C
d. None of the above
78. The average power density of solar heat striking the earth surface.
a. 1 kw/m²
b. 0.89 kw/m²
c. 0.58 kw/m²
d. None of the above
80. The capacity required for a 12-volt solar panel system is 73.6 watt-hour.
What is the ampere-hour capacity of the battery needed for the system?
a. 6.13 ampere-hour
b. 4.05 ampere-hour
c. 7.23 ampere-hour
d. None of the above
a. Photovoltaic
b. Ocean thermal energy conversion
c. Solar trough collectors
d. Hydropower
2
a.an electric current
b.butane
c.propane
d.methane and nutrient rich sludge
a. regeneration
b. the network of fluid-filled tubes in a roof-mounted solar water heater
c. the reaction chamber inside a hydrogen-oxygen fuel cell
d. the network of electrical lines that carry electricity from power
plants to the customers
85. The process of producing both electricity and capturing waste heat is
called?
86. The loaded radius of the pneumatic tire of the ground-wheel driven grain
drill is 16 inches. The estimated slippage is 18% and the required ground
speed of the grain drill is 7 kph. How many revolutions should the wheel
be turned to achieved this:
a. 52 rpm
b. 60 rpm
c. 64 rpm
d. 56 rpm
87. In the expanded yellow corn production, the recommended plant population
for a population for a hybrid yellow corn is 67,000 plants/ha to be
planted in furrows 75 cm. The ground wheel of the above planter has an
effective radius of 45 cm and equipped with a sprocket with 40 teeth. The
ground wheel sprocket in turn drives a vertical seed plate with a
sprocket of 20 teeth. How many cells would be needed in the seed plate to
achieve the desired planting pattern (assume 88% germination rate):
a. 10
b. 12
c. 8
d. 16
a. 0.75
b. 0.65
c. 0.85
d. 0.95
2
89. Wind is moving at 4 meters per second. If the rotor area is 2 square
meters, what is the wind power?
a. 80 watts
b. 125 watts
c. 95 watts
d. None of the above
90. A single-phase 220-V electric motor has a current input of 4.5 amp. If
the power factor of the motor is estimated to be at 0.98, what is the
power input of the motor?
a. 970.2 watts
b. 870.2 watts
c. 770.2 watts
d. 670.2 watts
a. torque
b. speed
c. power
d. None of the above
a. 4 times
b. 6 times
c. 8 times
d. None of the above
93. The greater the number of blades of the wind machine, the torque.
a. the higher
b. the lower
c. the same
d. None of the above
a. Chisel plow
b. Field cultivator
2
c. Spring tooth harrow
d. All of the above
96. The ratio of the heat released by the fuel of a heated-air mechanical
dryer to the theoretical heat available from the fuel.
a. Burner efficiency
b. Furnace efficiency
c. Combustion efficiency
d. None of the above
97. The axial fan of a flat-bed dryer is driven by a 10-hp diesel engine. If
gasoline engine will be used to drive the fan instead of diesel engine,
what would be the size of the gasoline engine?
a. 9.5 hp
b. 10 .2 hp
c. 11.1 hp
d. None of the above
98. The method of applying chemicals over the entire area to be treated.
a. Basal application
b. Band application
c. Broadcast application
d. None of the above
a. 500 kg/ha
b. 5000 kg/ha
c. 50,000 kg/ha
d. None of the above
(O)
2
1. ASAE stands for
a. 100-150 rpm
b. 200-250 rpm
c. 300-350 rpm
d. None of the above
a. Root bed
b. Root zone
c. Tillage zone
d. None of the above
a. Root bed
b. Root zone
c. Tillage zone
d. None of the above
a. Disc plow
b. Rotary plow
c. Moldboard plow
d. All of the above
a. Intelligence
b. Dexterity
c. Cost
d. None of the above
a. Disc plow
b. Moldboard plow
c. None of the above
d. All of the above
a. Humanistic factor
b. Mechanical operation factor
c. Ergonomic factor
d. All of the above
a. 27 persons
b. 37 persons
c. 47 persons
d. None of the above
11. Compute the power developed by 600 kg horse pulling 80-kg load at a speed
of 0.9 m/sec.
a. 0.94 hp
b. 0.87 hp
c. 0.99 hp
d. None of the above
a. Metering device
b. Drive wheel
c. Seed hopper
d. None of the above
13. It is a machine which has one or more elements that rotates about a
vertical axis and cut grass by impact.
a. Rotary mower
b. Grass cutter
c. Power scythe
d. All of the above
a. alcohol
b. oxygen
c. hydrogen
d. carbon dioxide
15. What is the effective field capacity of the machine in item above?
2
a. 0.25 ha/hr
b. 0.30 ha/hr
c. 0.35 ha/hr
d. None of the above
16. What is the time lost in turning and other idle time per hectare of the
reaper in item above?
a. 10 min
b. 17 min
c. 20 min
d. None of the above
17. A type of pump that develops most of the suction and discharge head by
propelling or lifting action of the impeller vanes in the water.
a. Axial-flow pump
b. Centrifugal pump
c. Mixed-flow pump
d. None of the above
18. One-thousand gallons per minute (1000 gpm) of water is to be pumped from
a river to a farm 150-ft above the river. What is the required horsepower
to drive the pump, considering a pump efficiency of 70% and the friction
and other losses of 20% of the static head?
a. 64.8 hp
b. 68.4 hp
c. 48.6 hp
d. None of the above
20. What is the total head loss, in meters, of the pump system in item above?
a. 54.8 m
b. 48.5 m
c. 84.5 m
d. None of the above
a. Zero tillage
b. No-tillage planting
c. Reduced tillage
d. None of the above
2
22. Determine the number of hills in a 2-hectare farm planted with corn with
25-cm x 45-cm spacing.
a. 150,000 hills
b. 177,777 hills
c. 185, 877 hills
d. None of the above
23. A corn plantation requires a population of 3,700 plants per hectare. The
average emergence is 90% and the row spacing is 1.2 meters. If the seeds
are to be drilled, what should be the seed spacing?
a. 0.4 m
b. 0.3 m
c. 0.2 m
d. None of the above
24. A five-row seeder will be used to place 5 seeds per hill to a 100-hectare
farm. The row spacing of the seeder is 30 cm while the hill spacing is 25
cm. compute the number of hills to be planted for the entire area?
a. 12,888,666 hills
b. 13,333,333 hills
c. 14,121,122 hills
d. None of the above
25. If the seeder in Item 62 travels at 15 kph, what is its theoretical field
capacity?
a. 2.25 ha/hr
b. 2.15 ha/hr
c. 2.01 ha/hr
d. None of the above
a. 3.56 hp
b. 5.56 hp
c. 7.56 hp
d. 5.56 hp
27. What is the effective field capacity of the seeder above if it has 90%
field efficiency?
a. 2.025 ha/hr
b. 1.983 ha/hr
c. 1.869 ha/hr
d. None of the above
28. How long does the machine finish the job if it will be operated at 8 hrs.
per day and 20 days per month?
a. 2 days
b. 4 days
c. 6 days
2
d. None of the above
29. A machine that breaks the liquid droplets of effective size and
distributes them uniformly over the surface or space to be protected, and
regulates the amount of chemical solution to avoid excessive application
that might prove harmful or wasteful.
a. Duster
b. Sprayer
c. All of the above
d. None of the above
30. The primary factor that affects the performance of the sprayer.
a. Spray-particle size
b. Spraying time
c. Spray materials
d. None of the above
31. A farmer wishes to spray his cotton plantation at a rate of 300 gallons
per hectare. Sixteen nozzles, 18 inches apart will be used. The forward
speed of the tractor is 5 kph. Compute the field capacity of the sprayer
in hectare per hour.
a. 5.6 ha/hr
b. 3.6 ha/hr
c. 4.7 ha/hr
d. None of the above
32. What is the required pump capacity for the sprayer above?
a. 23.5 gpm
b. 18.3 gpm
c. 20.6 gpm
d. None of the above
33. A type of mechanical rice thresher that detaches and separates the grains
from the panicles by feeding the rice-in-stalks into the machine.
a. Axial-flow thresher
b. Throw-in thresher
c. Hold-on thresher
d. None of the above
a. Feeding rate
b. Moisture content
c. Length of straw
d. All of the above
35. A forage chopper will be driven by a 5-hp diesel engine through a V-belt
drive. The 10-in-diameter engine has a linear speed of 78.54 fps, while
the required speed of the equipment is 650rpm.Find the diameter of the
driven pulley.
a. 27.69 in
b. 29.67 in
2
c. 26.79 in
d. 27.96 in
36. If the adjusted rated horsepower is 7.25 hp and the service factor is
1.4, find the number of belt(s).
a. 4
b. 3
c. 2
d. 1
37. The following are the reasons why mechanization is a difficult problem in
less developed countries, except:
a. social system
b. small farm size
c. resistance to change of some farmers
d. land conservation programs
a. type of soil
b. speed of plowing
c. sharpness of cutting edge
d. overall adjustment of plow
a. approx. 1300
b. approx. 500
c. approx. 975
d. approx. 1945
a. January 1, 1980
b. January 1, 1981
c. January 1, 1982
d. January 1, 1983
42. (X) is a market situation that exists when there are few
suppliers of a product or service that the action by one results in
(Y) action by the others.
43. Compute the crankshaft rear axle speed ratio required to give travel
speed of 15 mph for a tractor having an engine speed of 2,000 rpm and
rear wheel that are 46 inch in diameter.
a. 18.24
b. 109.70
c. 25.21
d. 28.79
a. Ericson engine
b. Stirling engine
c. Wankle engine
d. Rankine engine
45. These rely on the illumination-spectrum intensity coming from the sun.
46. A 5-m self-propelled combine, running at 5.2 kph, stops for 4.2 minutes
whenever it unloads its 3-ton grain tank. Turning on the headlands at the
end of the 500-m field takes 12 seconds. If the gross yield for the 25-ha
field is 55 tons, how long will it actually take to finish the entire
operation?
a. 9.96 hrs
b. 10.56 hrs
c. 12.56 hrs
d. 11.23 hrs
a. 78%
b. 86%
c. 91%
d. 89%
a. 1.86 ha/hr
b. 2.23 ha/hr
c. 1.99 ha/hr
d. 2.51 ha/hr
a. Insurance
b. flexibility
c. future contract
d. aggregation
2
50. The following are the characteristics of diesel engine compared to
gasoline engine, except:
51. A businessman needs an immediate cash of P80,000. He may borrow from any
of five possible lenders. The first charges an effective interest rate of
10.5%, the second at 9.6% (discounted), and the third at 10.4% compounded
semiannually. The fourth will require him to pay a lump sum of P90,000
after one year, while the fifth will be twelve equal end-of-the-month
payments of P7,500.00. Which is the best offer?
a. 1st
b. 2nd
c. 3rd
d. 4th
a. i only
b. i, iii
c. i, iii, v
d. iii, iv
53. A 2-in-diameter steel shaft rotates at 240 rpm. If the shearing stress is
limited to 12 ksi, determine the maximum horsepower that can be
transmitted.
a. 87.1 hp
b. 71.8 hp
c. 81.7 hp
d. 78.1 hp
a. 3.72 m
b. 7.32 m
c. 2.37 m
d. 3.27 m
a. 720
b. 585
c. 660
d. 540
a. 26
b. 27
c. 28
d. 29
58. When viewed in front, tractor tires must be mounted with the V-pattern
pointing in what direction?
a. Sideward
b. upward
c. downward
d. backward
59. In any machine or structural member under an axial load, there are both
tensile (and compressive) and shearing stresses on any plane oblique to
the load. On such an oblique plane, the tensile or compressive stress
normal to the oblique plane is less than what it is on a plane normal to
the axis of the piece, while the shearing stress is greater. What angle
on the plane does the shearing stress is a maximum?
a. Wheelbase
b. Rollover
c. drawbar
d. ballast
2
62. A process by which a farm manager looks ahead to the future and
contemplates alternative courses of action for the farm.
a. farm budgeting
b. farm planning
c. farming
d. farm management
63. A 4-cylinder, 120 mm × 120 mm engine turns at 2000 rpm. What is the
total engine displacement?
a. 500π cm3
b. 250π cm3
c. 1000π cm3
d. none of the above
64. It refers to ratio of the kinetic energy of air that a windrotor can
convert into mechanical energy over the theoretical maximum available
from the wind.
a. Power coefficient
b. Speed coefficient
c. Torque coefficient
d. none of the above
65. Determine the theoretical power available from a stream using the
following data: average width = 6 meters;average depth = 16 inches; speed
= 10 ft/min; height of drop = 1.5 meter.
a. 1.82hp
b. 1.63 hp
c. 1.82 kW
d. 2.45 kW
a. 1.300
b. 1.500
c. 2.000
d. none of the above
a. Advertising
b. Personal selling
c. Sales promotion
d. Public relations
2
69. often called mild steel bars in rectangular, angular and
square shapes are useful in bench metal work. The bars can be pounded,
twisted and bent into many shapes. Mild steel is often used as
replacement for wrought iron, because it is less expensive.
a. round bars
b. cast iron bars
c. pig iron bars
d. hot rolled iron bars
70. Engr. Masinaring and Engr. Sumallo were asked by Dean Avher to design 5
pcs. of work benches for the AE REVIEW 2010. The engineers found out that
they needed 10 pcs. of 2”x3”x12’ and 6 pcs. of 2”x2”x12’ for each work
bench. How many board feet of lumber would they need for a bench?
71. Tractor A can cover a 1-Ha field in 2 hrs, tractor B in 3 hrs, and
tractor C in 6 hrs. How long will it take to cover a 1-Ha field if the
three tractors worked together?
a. 0.5 hr
b. 1.0 hr
c. 1.5 hr
d. 2.0 hr
72. A transaction by your company this year involving the repayment in cash
of a portion of the long term loan of the company in the amount of P
70,000.00 would have the following effect:
a. deflation
b. devaluation
c. incision
d. inflation
74. Time value of money and interest rate utilized together generate this
concept which means that different sums of money at different times can be
equal in economic value.
a. equivalence
b. equalization
c. equilibrium
d. equestrian
75. Engr. Carl Vincent Ramos is due to pay P 50,000.00 at the end of the year
and P 150,000.00 five years from today. However, he was able to pay P
10,000.00 today and he plans to pay the balance in three years. How much
must Engr. Ramos pay at the end of three years if money is worth 10% per
annum? His payment is closest to:
2
a. 51,663.94
b. 51,363.49
c. 51,636.94
d. 51,366.94
76. A savings loan offers a 5.25% rate per annum compounded daily. What is
the effective annual rate?
a. 5.31%
b. 5.39%
c. 5.54%
d. 5.65%
77. Investment A costs P10,000 today and pays back P11,500 two years from
now. Investment B costs P8,000 today and pays back P4,500 each year for
two years. If an interest rate of 5% is used, what investment decision
will you make and why?
78. An agriculturist considers an asset which will cost P90,000 at the time
of purchase. It has a ten-year life and a salvage value of P2,000. What
is the book value of the asset after 3 years using straight line
depreciation?
a. P8,800
b. P26,400
c. P63,600
d. P81,200
79. It is used to seal engine components which are bolted to the sub-frame,
the cylinder block, and the crankcase.
a. Oil
b. Grease
c. Gasket
d. None of the above
a. Pump
b. Fan
c. Fan and pump
d. None of the above
81. A rice hull gasifier reactor that produces less tar during operation.
a. Updraft
b. Crossdraft
c. Downdraft
2
d. All of the above
a. Methane
b. Carbon dioxide
c. Carbon monoxide
d. All of the above
86. A turbine used for hydro system wherein pressurized water is converted
into a high speed jet by passing it through a nozzle.
a. Impulse turbine
b. Reaction turbine
c. Water wheel
d. None of the above
a. PV panel
b. Solar cell
c. Solar module
d. All of the above
88. A turbine for hydro system which runs completely filled with water.
a. Impulse turbine
b. Reaction turbine
c. Water wheel
d. None of the above
2
89. Solar battery is rated in terms of
90. The capacity require for 12-volt solar panel system is 73.6 watt-hour.
What is the ampere-hour capacity of the battery needed for the system?
a. 6.13 ampere-hour
b. 4.05 ampere-hour
c. 7.23 ampere-hour
d. None of the above
91. The act of analyzing, testing, and measuring the engine to remedy the
cause and trouble.
a. Servicing
b. Tune-up
c. Trouble shooting
d. All of the above
a. Factor of ignorance
b. Factor of safety
c. Reliability
d. None of the above
94. Two engines are rated 1 hp and the other is 1 ps. Which of the following
statement is true?
a. Horsepower
b. Pferde starke
c. Watts
d. All of the above
96. A kilogram fuel consumed by an engine per hr per amount of brake power is
the .
97. A tractor type designed for operation with advantage under trees.
a. Standard tractor
b. All-purpose row crop tractor
c. Orchard tractor
d. All of the above
a. Rotary tiller
b. Power harrow
c. Moldboard plow
d. All of the above
99. It is a circular flat tool placed ahead of a plow used to cut plant
material and soil.
a. Jointer
b. Pinion plow
c. Coulter
d. None of the above
a. Tilt angle
b. Side angle
c. Lift angle
d. None of the above
2
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(P)
2. A trench left when the plow bottom cuts and turns the furrow slice.
a. Back furrow
b. Dead furrow
c. Furrow
d. All of the above
a. Two times
b. Three times
c. Four times
d. None of the above
a. 4 times
b. 6 times
c. 8 times
d. None of the above
a. 6:1
b. 10:1
c. 3:1
d. None of the above
a. Premium
b. Leaded
c. Unleaded
d. All of the above
a. Distributor
2
b. Contact point
c. Magneto
d. All of the above
a. Detonation
b. Ignition
c. Carburetion
d. None of the above
a. Differential brake
b. Hand brake
c. Brake pedal
d. All of the above
10. Part of the tractor engine where pistons slide back and forth and are
replaced when damaged.
a. Cylinder block
b. Cylinder liner
c. Cylinder head
d. All of the above
11. A turbine and an air blower mounted ahead of the intake manifold of an
engine to force more air into the cylinder thereby increasing power
output of the engine by 10-15%.
a. Auxiliary reducer
b. Turbocharger
c. Power inducer
d. All of the above
a. Head yoke
b. Breast strap
c. Harness
d. None of the above
13. If two animals having 0.75 hp each are harnessed together, the pulling
output of the two animals is
14. It is the utilization of hand tools, implements for draft animals, and
mechanically-powered machines for agricultural land development,
production, harvesting and non-farm processing.
2
a. Agricultural development
b. Agricultural mechanization
c. Agricultural machinery and equipment
d. All of the above
15. What is the force required to pull a single moldboard plow on a clay loam
soil having a width and depth of cut of 30 cm and 15 cm, respectively.
Soil draft is 8 psi.
a. 314 kg
b. 253 kg
c. 157 kg
d. None of the above
a. Moldboard
b. Rotary plow
c. Disk plow
d. None of the above
17. Determine the number of 13-cm animal drawn plows needed to complete
plowing a 3-ha field in one day (8 hrs/day). Field efficiency is 78% and
speed of travel is 3 kph.
a. 5 plows
b. 9 plows
c. 13 plows
d. 15 plows
18. If the speed ratio of seedplate over groundwheel of the two-row corn
planter is 0.20, determine the expected plant population/ha. Row spacing
is 75 cm. Groundwheel diameter is 60 cm. Average no. of seeds per hill is
2. Number of cells of seedplate is 20. Average emergence of seeds is 85%.
a. 48,000 plts/ha
b. b. 54,000 plts/ha
c. c. 60,000 plts/ha
d. d. 66,000 plts/ha
19. 5 pcs. of work benches are needed for the AE REVIEW 2011. The engineers
found out that they needed 10 pcs. of 2”x3”x12’ and 6 pcs. of 2”x2”x6’
for each work bench. How many board feet of lumber would they need for a
bench?
20. How much money do they need to purchase the wood materials for the work
benches? (Assume that a board foot of lumber costs 30 pesos)
a. 10,800 pesos
b. 12,600 pesos
c. 2,160 pesos
d. 2,520 pesos
2
21. A primary-tillage plow used for small rice farm.
a. Moldboard
b. Rotary
c. Spiral
d. All of the above
a. Rotary
b. Spiral
c. Disk
d. All of the above
a. Tilt angle
b. Disk angle
c. All of the above
d. None of the above
24. A plow that combines the primary and secondary tillage at the same time.
It is used to cut and to pulverize the soil.
a. Disk plow
b. Rotary plow
c. Chisel plow
d. All of the above
a. Lister plow
b. Disk plow
c. Chisel plow
d. All of the above
a. Chisel plow
b. Lister plow
c. Subsoiler
d. None of the above
a. Double-action
b. Single-action
c. Offset
d. None of the above
a. Double-action
b. Single-action
c. Offset
d. None of the
2
29. A mechanical device used in fabricating farm tools will cost P120,000
when purchased. Maintenance will be P10,000 per year. It will generate
revenues of P50,000 per year for five years. It has a salvage value of
P30,000. If the enterprise targets a minimum attractive rate of return of
15% per year, will you recommend that the device be purchased? Why?
a. No, because the computed IRR of 12% is less than the MARR.
b. No, because the computed IRR of 14% is less than the MARR.
c. Yes, because the computed IRR of 24% is more than the MARR.
d. Yes, because the computed IRR of 15% is just equal to the MARR.
a. current ratio
b. acid test ratio
c. debt-to-equity ratio
d. inventory turnover ratio
31. Clearly assigning tasks, training, and supervising labor are among the
rules for .
a. Labor Management
b. Hiring
c. Human Resources
d. Applying
32. This includes any goods employed in production other than land, labor,
buildings and fences.
a. infrastructures
b. property
c. capital
d. currency
a. 5 to 10 cm
b. 10 to 15 cm
c. 15 to 20 cm
d. None of the above
a. 0 to 10 cm
b. 10 to 20 cm
c. 20 cm to 30 cm
d. None of the above
35. In paddy field plowing operation using a four wheel tractor, which of the
following is true:
a. Motor tiller
b. Power tiller
c. Puddling-type floating tiller
d. None of the above
39. A gang arrangement in which the harrow is not centrally located with
respect to the tractor position.
a. Double-action
b. Single-action
c. Offset
d. None of the above
a. Angle disk
b. Angle of hitch
c. Size of disk
d. All of the above
41. The actual coverage rate by an implement based on the total field time.
a. Field efficiency
b. Effective field capacity
c. Theoretical field capacity
d. None of the above
a. Will be improved
b. Will be the same
c. Will become poor
d. None of the above
2
44. The disk angle that will give the minimum draft for a disk plow for a
given width of cut is:
a. 30-35 deg.
b. 40-45 deg.
c. 45-50 deg.
d. None of the above
a. Much tillage
b. No-till
c. Minimum tillage
d. None of the above
a. Conventional tillage
b. Conservation tillage
c. Strip tillage
d. None of the above
47. An implement with integral power unit designed to provide both mobility
and power for performing agricultural operation.
a. Mounted implement
b. Self-propelled machine
c. Trailed-mounted implement
d. None of the above
48. A rotary tiller has 2 m operating width. If the tractor runs at a speed
of 2 km/hr, the theoretical field capacity of the machine is:
a. 4.0 ha/hr
b. 0.4 ha/hr
c. 0.04 ha/hr
d. None of the above
49. The field capacity of the rotary tiller was measured at 0.23 ha/hr. If
the operating width and speed of the machines are 1.5 m and 2 kph,
respectively, the field efficiency of the tiller is:
a. 64 %
b. 77 %
c. 85 %
d. None of the above
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
2
51. If the annual cost of living now for a farmer’s household consisting of 5
members is P180,000 per year, how much will it cost ten years from now if
inflation rate is 4.5%?
a. P279,530
b. P261,000
c. P239,480
d. P197,990
52. Which of the following agencies does not belong to the Department of
Agriculture?
a. BPRE
b. BPI
c. AMMDA
d. RAEG
53. How many times greater is the power of a carabao over man?
a. 0.1
b. 1.0
c. 10
d. 100
54. Compute the amount of power that can be developed by a 600-kg draft
animal pulling an 80-kg load at a speed of 0.9 m/sec.
a. 12 kg-m/sec or 0.36 hp
b. 71 kg-m/sec or 0.86 hp
c. 79 kg-m/sec or 0.56 hp
d. 72 kg-m/sec or 0.96 hp
55. The word used to indicate that among several possibilities one is
recommended as particularly suitable without mentioning or excluding
others:
a. Shall
b. Should
c. a or b
d. none of the above
56. A 5-m self-propelled combine makes an average stop of 4 min every time
its 2-ton grain tank is to be unloaded. Gross yield of the 20-ha field
is 42 tons. The operating speed is 4.8 kph. The time for turning on the
headland at the ends of the 500-m field is 15 seconds. Find the
theoretical field capacity of the combine:
a. 1.2 ha/hr
b. 2.4 ha/hr
c. 3.6 ha/hr
d. 4.8 ha/hr
57. The most recently developed system of harvesting and threshing of rice
is:
a. mechanical harvesting & threshing
b. combining
c. stripping
d. all of the above
2
58. A machine that cuts standing crop, conveys the cut crop to one side, and
lays them down in an orderly manner is called:
a. sickle
b. reaper-windrower
c. reaper-binder
d. stripper
60. Part of engine that which slides up and down the cylinder and transmits
power to the crankshaft.
a. Connecting rod
b. Cylinder block
c. Piston
d. Spark plug
61. A four-wheel tractor weighs 2.5 tons and runs in a deep mud soil during
rotary tilling operation. What is the rolling resistance of the tractor
wheel?
a. 0.225 kg
b. 0.625 kg
c. 0.425 kg
d. 0.825 kg
63. An open trench left between the adjacent strips of land after finishing
the plowing operation.
a. Back furrow
b. Dead furrow
c. Furrow
d. All of the above
SWEff
64. In the equation C = 10 , W is width of cut expressed in:
a. ft.
b. m
c. km
d. mile
2
a. 2-wheel tractor for wetland op.
b. 4-wheel tractor for dryland op.
c. 4-wheel tractor for wetland op.
d. all of the above
a. 0.09 ha/hr
b. 0.5 ha/hr
c. 0.36 ha/hr
d. 1.5 ha/hr
67. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the time required to plow the field:
a. 11.11 hrs
b. 22.22 hrs
c. 44.44 hrs
d. 66.66 hrs
a. 0.23 ha/hr
b. 0.25 ha/hr
c. 0.27 ha/hr
d. 0.29 ha/hr
69. Planters designed to plant seeds continuously in rows with row spacing
greater than 36 cm is called.
a. tank
b. pump
c. pressure gage
d. nozzle
2
72. Which of the following is not a typical example of a small single-
cylinder engine?
74. Average harvesting losses of rice at maturity date is 3.35 %, but two
weeks after maturity date this will increase to:
a. 5.63%
b. 8.64%
c. 40.70%
d. 60.46%
75. The threshing action where grains are detached from their panicles when
the straw is pulled through a “V” shaped configuration is called:
a. rubbing action
b. impact action
c. stripping action
d. a and b
a. 1985
b. 1990
c. 1995
d. 2000
77. What is the theoretical field capacity of a 3-m combine traveling at 100
meters in 52 seconds?
a. 0.03 ha/hr
b. 0.57 ha/hr
c. 1.45 ha/hr
d. 2.08 ha/hr
78. A 3-ha field was plowed using a 15-cm wide animal-drawn plow at 4 kph and
field efficiency of 75%. The draft required to pull the plow is 60 kg.
Find the horsepower output of the animal:
a. 0.66 hp
b. 0.88 hp
c. 0.77 hp
d. 1.0 hp
2
79. This must be high enough in order to self-ignite the air fuel mixture in
a diesel engine.
a. compression temperature
b. valve compression
c. intake pressure
d. engine pressure
a. DTR
b. SRAF
c. ROPS
d. TE
81. Fuel used for constant pressure cycle internal combustion engine.
a. Gasoline
b. Diesel
c. Biomass
d. None of the above
82. How many fuel injection pumps are there in 4 cylinder four stroke cycle
diesel engine?
a. 1
b. 2
c. 4
d. None of the above
83. How many fuel injection pumps are there in 4 cylinder four stroke cycle
gasoline engine?
a. 1
b. 2
c. 4
d. None of the above
a. Human factors
b. Statements b, and c
2
c. Liquidity
d. Natural factors
87. A prony brake test of an engine shows that the crankshaft rotates at 1000
rpm. The brake arm length is 60 inches and the net load on the scales is
50 lb. What is the power developed?
a. 48 kW
b. 35 kW
c. 42 hp
d. 26,180 ft-lb/min
88. A machine that cuts standing crop, conveys the cut crop to one side, and
lays them down in an orderly manner is called:
a. sickle
b. reaper-windrower
c. reaper-binder
d. stripper
a. 0.46 ha/hr
b. 1.45 ha/hr
c. 1.13 ha/hr
d. 1.8 ha/hr
a. P9,450
b. P11,380
c. P14,500
d. P17,420
92. An agricultural machine is purchased for P100,000 and has a useful life
of 12 years. At the end of 12 years, the salvage value is P13,000. By
straight line depreciation, what is the accumulated depreciation at the
end of 8 years?
a. P58,000
b. P42,000
c. P36,000
d. P64,000
93. The time required for savings or sales to offset first costs, without
regard for the time value of money is called
2
a. discounted payback period
b. capital recovery period
c. return on investment period
d. simple payback period
a. 76 hp
b. 108 hp
c. 124 hp
d. 145 hp
a. LPG
b. natural gas
c. producer gas
d. biogas
96. The sequence by which the cylinder delivers the power stroke.
a. Ignition
b. Firing order
c. Flash point
d. None of the above
97. Engr. Carl Vincent Ramos is due to pay P 50,000.00 at the end of the year
and P 150,000.00 five years from today. However, he was able to pay P
10,000.00 today and he plans to pay the balance in three years. How much
must Engr. Ramos pay at the end of three years if money is worth 10% per
annum? His payment is closest to:
a. 51,663.94
b. 51,363.49
c. 51,636.94
d. 51,366.94
a. 1.39 hours
b. 2.39 hours
c. 3.39 hours
d. 4.39 hours
99. A tractor with a 9-in pulley is belted to a prony brake having a 24-in
pulley. If the tractor engine pulley speed is 950 rpm, the brake arm is
54 in, and the net load is 60 lb., what is the hp developed?
a. 25.2
b. 18.3
2
c. 34.6
d. 52.4
100. Compute the number of plants required for a 2-hectare corn farm with
the following seed spacing: Plant spacing, 0.25 m and row spacing, 0.45
m.
2
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(ANSWERS)
A
1.B 11.C 21.D 31.A 41.A 51.D 61.C 71.A 81.B 91.A
2.B 12.D 22.D 32.A 42.C 52.B 62.B 72.B 82.C 92.B
3.D 13.D 23.B 33.C 43.D 53.C 63.A 73.A 83.C 93.A
4.A 14.B 24.D 34.A 44.B 54.D 64.C 74.C 84.C 94.D
5.D 15.C 25.D 35.A 45.C 55.D 65.C 75.A 85.A 95.D
6.C 16.C 26.C 36.C 46.B 56.D 66.D 76.A 86.A 96.B
7.D 17.D 27.A 37.B 47.B 57.A 67.A 77.C 87.B 97.A
8.C 18.D 28.A 38.B 48.C 58.C 68.B 78.D 88.C 98.A
9.D 19.A 29.C 39.C 49.C 59.B 69.A 79.D 89.C 99.B
10.D 20.B 30.B 40.C 50.D 60.C 70.A 80.A 90.B 100.B
B
1.A 11.B 21.A 31.A 41.C 51.C 61.A 71.B 81.D 91.B
2.C 12.A 22.C 32.C 42.B 52.D 62.A 72.B 82.C 92.B
3.B 13.C 23.B 33.B 43.A 53.C 63.C 73.C 83.C 93.D
4.B 14.B 24.B 34.B 44.C 54.A 64.D 74.A 84.A 94.B
5.B 15.B 25.D 35.B 45.A 55.B 65.B 75.A 85.B 95.B
6.B 16.D 26.C 36.A 46.A 56.D 66.C 76.B 86.A 96.D
7.A 17.C 27.C 37.B 47.C 57.C 67.B 77.B 87.A 97.A
8.A 18.A 28.A 38.B 48.D 58.C 68.D 78.D 88.A 98.A
9.A 19.B 29.B 39.C 49.C 59.B 69.B 79.D 89.C 99.C
10.B 20.C 30.B 40.B 50.C 60.D 70.B 80.D 90.B 100.C
C
1.B 11.B 21.D 31.B 41.C 51.D 61.B 71.A 81.A 91.B
2.D 12.B 22.B 32.C 42.D 52.C 62.A 72.C 82.C 92.B
3.D 13.C 23.B 33.D 43.A 53.A 63.A 73.B 83.C 93.A
4.C 14.B 24.D 34.A 44.C 54.B 64.C 74.A 84.C 94.B
5.D 15.C 25.B 35.B 45.D 55.B 65.C 75.B 85.D 95.A
6.C 16.C 26.C 36.A 46.A 56.A 66.B 76.D 86.B 96.C
7.D 17.B 27.C 37.C 47.D 57.B 67.B 77.A 87.C 97.A
8.A 18.A 28.B 38.C 48.C 58.C 68.A 78.A 88.B 98.B
9.C 19.C 29.B 39.C 49.B 59.A 69.A 79.C 89.B 99.B
10.B 20.B 30.D 40.A 50.B 60.A 70.B 80.B 90.D 100.A
D
1.C 11.C 21.A 31.D 41.B 51.C 61.C 71.C 81.C 91.D
2.C 12.D 22.B 32.A 42.C 52.D 62.C 72.B 82.A 92.A
3.B 13.D 23.B 33.C 43.B 53.D 63.C 73.B 83.D 93.D
4.A 14.A 24.D 34.B 44.B 54.A 64.B 74.A 84.A 94.A
5.B 15.B 25.A 35.D 45.B 55.A 65.D 75.D 85.B 95.B
6.B 16.C 26.A 36.A 46.A 56.C 66.D 76.B 86.B 96.D
7.A 17.D 27.B 37.C 47.A 57.B 67.C 77.D 87.A 97.C
8.C 18.A 28.B 38.B 48.A 58.C 68.D 78.B 88.A 98.A
9.B 19.C 29.A 39.B 49.C 59.C 69.C 79.B 89.C 99.C
10.D 20.B 30.C 40.D 50.B 60.B 70.D 80.A 90.B 100.B
2
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(ANSWERS)
E
1.C 11.B 21.A 31.A 41.C 51.C 61.A 71.B 81.D 91.B
2.A 12.A 22.C 32.C 42.B 52.D 62.A 72.B 82.C 92.B
3.C 13.C 23.B 33.B 43.A 53.C 63.C 73.C 83.C 93.D
4.D 14.B 24.B 34.B 44.A 54.A 64.D 74.A 84.A 94.B
5.C 15.B 25.D 35.B 45.C 55.B 65.B 75.A 85.B 95.B
6.B 16.D 26.C 36.A 46.A 56.D 66.C 76.B 86.A 96.D
7.A 17.C 27.C 37.B 47.C 57.C 67.B 77.B 87.A 97.A
8.A 18.A 28.A 38.B 48.D 58.C 68.D 78.D 88.A 98.A
9.A 19.B 29.B 39.C 49.C 59.B 69.B 79.D 89.C 99.C
10.B 20.C 30.B 40.B 50.C 60.D 70.B 80.D 90.B 100.C
F
1.D 11.C 21.A 31.B 41.B 51.A 61.B 71.A 81.C 91.C
2.B 12.C 22.B 32.A 42.A 52.A 62.A 72.B 82.A 92.D
3.B 13.A 23.C 33.A 43.A 53.B 63.D 73.B 83.D 93.C
4.B 14.D 24.C 34.B 44.A 54.B 64.C 74.C 84.B 94.A
5.B 15.A 25.B 35.B 45.A 55.C 65.B 75.C 85.C 95.D
6.D 16.B 26.C 36.B 46.C 56.C 66.B 76.B 86.B 96.D
7.C 17.A 27.C 37.B 47.B 57.D 67.A 77.C 87.B 97.B
8.A 18.C 28.C 38.A 48.B 58.C 68.C 78.A 88.B 98.C
9.C 19.C 29.A 39.A 49.B 59.B 69.C 79.A 89.C 99.B
10.D 20.C 30.A 40.B 50.B 60.A 70.D 80.B 90.D 100.B
G
1.C 11.B 21.A 31.A 41.A 51.C 61.B 71.A 81.A 91.A
2.A 12.B 22.B 32.A 42.C 52.C 62.C 72.D 82.A 92.C
3.A 13.C 23.D 33.B 43.D 53.B 63.D 73.A 83.C 93.C
4.A 14.D 24.C 34.B 44.A 54.A 64.A 74.B 84.C 94.B
5.B 15.B 25.C 35.C 45.B 55.A 65.D 75.B 85.A 95.D
6.C 16.C 26.A 36.D 46.B 56.A 66.A 76.D 86.A 96.A
7.A 17.A 27.B 37.B 47.B 57.B 67.B 77.B 87.A 97.B
8.B 18.B 28.A 38.D 48.B 58.D 68.B 78.C 88.B 98.C
9.A 19.B 29.B 39.C 49.A 59.D 69.B 79.C 89.C 99.B
10.B 20.B 30.D 40.B 50.C 60.D 70.A 80.B 90.B 100.A
H
1.A 11.A 21.B 31.A 41.C 51.C 61.C 71.D 81.B 91.B
2.D 12.D 22.B 32.C 42.B 52.A 62.B 72.B 82.A 92.C
3.B 13.D 23.B 33.C 43.D 53.B 63.C 73.A 83.C 93.A
4.C 14.D 24.D 34.B 44.A 54.C 64.B 74.C 84.A 94.B
5.B 15.A 25.C 35.A 45.C 55.B 65.A 75.A 85.B 95.A
6.B 16.B 26.A 36.B 46.A 56.B 66.A 76.B 86.B 96.B
7.A 17.D 27.C 37.C 47.C 57.D 67.C 77.A 87.B 97.A
8.B 18.B 28.C 38.B 48.D 58.D 68.B 78.B 88.B 98.A
9.A 19.D 29.C 39.B 49.D 59.A 69.D 79.A 89.B 99.A
10.C 20.D 30.B 40.C 50.B 60.B 70.D 80.D 90.B 100.A
2
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(ANSWERS)
I
1.C 11.B 21.C 31.B 41.C 51.D 61.A 71.D 81.A 91.B
2.D 12.A 22.C 32.A 42.B 52.C 62.D 72.B 82.D 92.A
3.A 13.B 23.A 33.B 43.A 53.B 63.A 73.D 83.A 93.B
4.A 14.B 24.C 34.B 44.D 54.B 64.B 74.C 84.B 94.A
5.C 15.B 25.D 35.A 45.A 55.C 65.A 75.B 85.B 95.A
6.A 16.A 26.B 36.B 46.B 56.B 66.A 76.B 86.A 96.A
7.D 17.B 27.D 37.B 47.D 57.D 67.D 77.B 87.B 97.A
8.C 18.B 28.C 38.B 48.A 58.D 68.D 78.A 88.A 98.D
9.B 19.C 29.B 39.B 49.B 59.A 69.D 79.B 89.C 99.A
10.B 20.B 30.D 40.D 50.B 60.D 70.B 80.C 90.B 100.B
J
1.B 11.A 21.C 31.A 41.A 51.A 61.D 71.D 81.C 91.B
2.A 12.C 22.A 32.A 42.A 52.A 62.B 72.B 82.B 92.A
3.C 13.C 23.A 33.A 43.A 53.B 63.D 73.A 83.A 93.A
4.B 14.B 24.D 34.A 44.B 54.A 64.B 74.B 84.C 94.B
5.C 15.D 25.B 35.A 45.B 55.A 65.A 75.A 85.A 95.A
6.A 16.D 26.A 36.B 46.A 56.D 66.B 76.B 86.D 96.B
7.B 17.B 27.B 37.A 47.A 57.B 67.B 77.C 87.C 97.B
8.C 18.A 28.C 38.A 48.A 58.C 68.C 78.A 88.A 98.B
9.A 19.C 29.A 39.A 49.A 59.A 69.A 79.B 89.D 99.A
10.A 20.A 30.B 40.B 50.B 60.B 70.B 80.B 90.D 100.C
K
1.B 11.A 21.B 31.D 41.A 51.C 61.A 71.A 81.B 91.B
2.C 12.A 22.B 32.C 42.A 52.C 62.D 72.A 82.B 92.A
3.B 13.B 23.A 33.A 43.D 53.B 63.D 73.C 83.B 93.A
4.C 14.C 24.B 34.C 44.B 54.A 64.B 74.A 84.A 94.D
5.C 15.D 25.A 35.B 45.C 55.C 65.A 75.A 85.A 95.D
6.B 16.D 26.C 36.B 46.B 56.B 66.C 76.C 86.D 96.A
7.B 17.A 27.D 37.C 47.B 57.A 67.B 77.A 87.C 97.A
8.B 18.B 28.C 38.C 48.C 58.A 68.C 78.C 88.A 98.C
9.B 19.C 29.B 39.A 49.A 59.B 69.B 79.C 89.B 99.D
10.D 20.C 30.A 40.B 50.D 60.B 70.D 80.A 90.A 100.C
L
1.D 11.C 21.A 31.C 41.D 51.B 61.D 71.B 81.C 91.B
2.D 12.B 22.B 32.C 42.D 52.A 62.B 72.C 82.D 92.B
3.D 13.C 23.A 33.B 43.A 53.A 63.D 73.B 83.D 93.C
4.A 14.B 24.B 34.C 44.B 54.D 64.D 74.D 84.D 94.C
5.B 15.A 25.B 35.A 45.D 55.A 65.D 75.D 85.B 95.B
6.B 16.C 26.C 36.A 46.B 56.A 66.A 76.A 86.B 96.B
7.C 17.C 27.A 37.B 47.A 57.C 67.C 77.B 87.B 97.B
8.B 18.D 28.C 38.A 48.B 58.D 68.D 78.D 88.C 98.C
9.C 19.A 29.C 39.B 49.D 59.B 69.A 79.D 89.C 99.B
10.B 20.B 30.A 40.D 50.D 60.C 70.D 80.B 90.B 100.B
2
MECHANIZATION, POWER, MACHINERY
& EQUIPMENT & ALLIED SUBJECT
(ANSWERS)
M
1.B 11.C 21.B 31.C 41.B 51.A 61.B 71.A 81.D 91.B
2.B 12.D 22.D 32.C 42.B 52.D 62.B 72.B 82.D 92.A
3.D 13.B 23.A 33.B 43.A 53.A 63.B 73.C 83.C 93.B
4.C 14.D 24.B 34.C 44.B 54.B 64.C 74.C 84.C 94.B
5.A 15.B 25.B 35.A 45.B 55.A 65.B 75.D 85.A 95.B
6.A 16.A 26.B 36.B 46.C 56.B 66.A 76.B 86.A 96.C
7.B 17.D 27.A 37.A 47.A 57.B 67.A 77.A 87.C 97.C
8.A 18.C 28.A 38.B 48.B 58.B 68.B 78.A 88.D 98.A
9.D 19.A 29.A 39.B 49.D 59.B 69.D 79.A 89.D 99.C
10.B 20.C 30.C 40.B 50.D 60.B 70.B 80.B 90.D 100.C
N
1.C 11.A 21.B 31.A 41.B 51.C 61.C 71.C 81.D 91.A
2.B 12.B 22.C 32.B 42.A 52.A 62.A 72.C 82.C 92.C
3.B 13.B 23.B 33.C 43.B 53.B 63.A 73.B 83.D 93.A
4.C 14.A 24.A 34.C 44.B 54.B 64.A 74.B 84.D 94.B
5.B 15.B 25.A 35.D 45.D 55.B 65.C 75.B 85.C 95.B
6.D 16.C 26.C 36.B 46.B 56.A 66.B 76.D 86.D 96.C
7.A 17.B 27.B 37.C 47.C 57.C 67.C 77.B 87.C 97.C
8.B 18.C 28.B 38.B 48.B 58.D 68.A 78.B 88.C 98.C
9.A 19.C 29.A 39.B 49.D 59.A 69.C 79.C 89.A 99.B
10.B 20.C 30.B 40.B 50.C 60.A 70.A 80.A 90.A 100.C
O
1.C 11.A 21.A 31.B 41.D 51.A 61.A 71.B 81.C 91.C
2.B 12.A 22.B 32.B 42.D 52.B 62.B 72.B 82.C 92.B
3.B 13.A 23.B 33.B 43.A 53.B 63.D 73.D 83.C 93.C
4.B 14.A 24.B 34.D 44.C 54.C 64.A 74.A 84.B 94.C
5.B 15.B 25.A 35.A 45.C 55.A 65.C 75.A 85.D 95.B
6.B 16.C 26.B 36.D 46.D 56.D 66.D 76.B 86.A 96.B
7.B 17.A 27.A 37.D 47.B 57.C 67.D 77.D 87.D 97.C
8.C 18.A 28.C 38.A 48.B 58.C 68.A 78.C 88.B 98.C
9.C 19.A 29.B 39.C 49.D 59.B 69.D 79.C 89.C 99.C
10.C 20.A 30.A 40.D 50.B 60.D 70.C 80.B 90.A 100.C
P
1.A 11.B 21.D 31.A 41.B 51.A 61.B 71.C 81.B 91.C
2.C 12.C 22.B 32.C 42.B 52.C 62.C 72.B 82.A 92.A
3.C 13.C 23.A 33.B 43.A 53.C 63.B 73.B 83.D 93.D
4.C 14.B 24.B 34.C 44.B 54.D 64.B 74.B 84.A 94.C
5.A 15.B 25.C 35.B 45.B 55.B 65.D 75.C 85.B 95.C
6.C 16.C 26.C 36.A 46.A 56.B 66.C 76.D 86.C 96.B
7.B 17.C 27.B 37.A 47.B 57.C 67.D 77.D 87.B 97.D
8.A 18.A 28.A 38.A 48.B 58.B 68.A 78.B 88.B 98.A
9.A 19.C 29.C 39.C 49.B 59.B 69.A 79.A 89.A 99.B
10.C 20.A 30.D 40.D 50.B 60.C 70.A 80.C 90.A 100.B
2
REFERENCES:
*Soil and water conservation engineering, and allied subjects By Guiller B. Damian