2nd Comprehensive Exam
2nd Comprehensive Exam
2nd Comprehensive Exam
28. In reference to problem no. 27, based on the time required to take the first 20 observations,
how many days will be required to conduct this study?
b. 465
d. 468
c. 368
a. 365
29. A study reveals that a group of three semiautomatic machines assigned to one operator
operates unattended 30 percent of the time. Operator service time at irregular intervals averages
70 percent of the time on these three machines. What would be the estimated machine hours lost
per eight-hour day because of lack of an operator?
b. 0.97
c. 1.51
d. 1.94
a. 0.43
30. What technique eliminates unnecessary tasks and improves the process for completing tasks
c. work measurement
a. methods analysis
d. task inversion
b. job design
31. Which of the following is not an application of standard time analysis?
c. evaluate new product proposals
b. a benchmark for marketing a product
a. a benchmark for companies to use when evaluating other alternatives
d. use of new materials
32. A technician is conducting a work sampling study of a machine maintenance worker to
determine the portion of the time the worker spends in one particular department. Management
has indicated that they believe that repairs in this department consume 55% of the maintenance
worker’s time, and they want the estimate to be within +/- 3 percent of the true proportion with
97% confidence level. Determine the number of observations in the sample.
d. 759
c. 1592
a. 1295
b. 975
37. The manager of a small supermarket chain wants to estimate the proportion of time stock
clerks spend making price changes on previously marked merchandise. The manager wants a 98
percent confidence that the resulting estimate will be within 5 percent of the true value. The
preliminary estimate of sample size is p = 0.50. What sample size should be used?
a. 243
b. 343
c. 443
d. 543
39. An analyst wants to obtain a cycle time estimate that is within 5 percent of the true value. A
preliminary run of 20 cycles took 40 minutes to complete and had a calculated standard deviation
of 0.3 minute. What is the value of the coefficient of variation to be used for computing the
sample size for the forthcoming time study?
a. 0.05
b. 0.10
d. 0.20
c. 0.15
40. A work sampling study was made of a cargo loading operation for the purpose of developing
a standard time. During the total 120 minutes of observation the employee was working 80% of
the time and loaded 60 pieces of cargo. The analyst rated the performance at 90%. The firm
wishes to incorporate an allowance factor for fatigue, delays, and personal time of 10% of
normal work time. What is the standard time for this operation in minutes per piece given the
allowance is added to its normal time?
c. 2.85
b. 1.85
a. 1.58
d. 2.58
41. The queuing of machines for attention e.g. when one worker is responsible for attending to
more than one machine.
c. Machine Interference
d. Machine Hour
a. Machine Efficiency Index
b. Machine Effective Utilization Index
42. A skeletal muscle contraction that happens when muscle elongates when it contracts.
c. Eccentric Muscle Contraction
d. Concentric Muscle Contraction
a. Isometric Muscle Contraction
b. Biometric Muscle Contraction
43. The maximum torque that a given muscle can exert voluntarily about the skeletal joint is
called
a. Strength
d. Contraction
c. Force
b. Muscle Endurance
44. Anthropometric design principle in which a specific feature is a limiting factor in
determining either the maximum or the minimum value of a population variable to be
accommodated, for example, stature for doorways.
b. Design for Averages
c. Design for Extremes
a. Design for Adjustability
d. Design for Variability
45. Basal metabolic rate measures ______________
b. time lapse between eating and passing stool
c. number of enzymes required
d. number of active sites
a. how fast chemical reactions occur
46. Basal metabolism refers to amount of energy required
d. to keep heart beating
b. to carry out all vital processes
a. to eat dinner
c. for running a marathon
47. Which of the following is a term used to describe the condition “epicondylitis”?
d. Carpenter’s elbow
c. Roofer’s wrist
a. Trigger finger
b. Rotator cuff
48. In properly adjusted workstation, the screen should be positioned so that midscreen is _____
degree from eye level.
c. 20
a. 10
b. 15
d. 25
49. Heart muscles that perform the pumping function for the cardiovascular system.
a. Skeletal Muscles
c. Centric Muscles
d. Cardiac Muscles
b. Smooth Muscles
50. What is the average strength of females compared with males?
c. 67%
d. 75%
b. 55%
a. 47%
51. What is the proper hand diameter thickness of a hand tool with a grip?
a. 10 – 20 mm
d. 70 – 80 mm
b. 30 – 40 mm
c. 50 – 60 mm
52. It is defined as the capability to maintain an applied force over time.
b. Muscle Endurance
d. Contraction
a. Strength
c. Force
53. What is the body core temperature that your body is disabled?
c. Above 42 C
d. Above 45 C
b. Above 40 C
a. Above 38 C
54. Which of the following is not an advantage of standing work position?
c. Standing workers require less leg room than seated workers.
b. Body weight can be used to exert forces.
d. None of the Above
a. Reach is greater in standing than in sitting.
55. A worker unloads 20 kg sacks of apples from a conveyor and loads them onto a chute, from
whence they are dispatched. He loads for 2 hours per day at a rate of 5 sacks per minute. Based
from the study, the Lifting Index is at 2.3. What is the Recommended Weight Limit?
b. 12.9 lbs
d. 8.70 lbs
c. 19.13 lbs
a. 5.88 lbs
56. In the previous problem, if the RWL is at 25 kg, what should be the weight of the Load to
reduce the Lifting Index to 0.5?
b. 25.0 kg
c. 50.33 kg
d. None of the Above
a. 12.5 kg
57. This can occur when working in the heat while wearing protective clothing. It results in an
excessive loss of carbon dioxide.
c. Heat Exhaustion
a. Heat Hyperventilation
b. Heat Syncope
d. Heat Hyperpyrexia
58. The process in which the lens enables light from both distant and near objects to be focused
sharply onto the retina,
d. Myopia
a. Accommodation
c. Adaptation
b. Blinking
59. Described as the rate flow of luminous energy
d. Reflectance
b. Luminance
c. Luminous Flux
a. Luminous Intensity
60. Below are some approaches to noise control except:
c. Protect personnel by issuing ear plugs or muffs or build an acoustic refuge.
b. Remove personnel from the noisy environment.
d. None of the Above
a. Eliminate the threat to hearing by redesigning the machine or using a less noisy machine.
61. The movement of a person to a different job at the same or similar level of responsibility in
the organization.
a. Monetary reward
c. Demotion
b. Promotion
d. Transfer
62. A process of sharing information through symbols, including words and message.
b. Communication
a. Counseling
c. Hypnotism
d. Language
63. Function of communication that can be used for decision-making at various work levels in
the organization.
d. Control Function
c. Motivation Function
a. Information Function
b. Emotive Function
64. A function of communication used as a means to motivate employees to commit themselves
to the organizations objectives.
a. Information Function
d. Control Function
c. Motivation Function
b. Emotive Function
65. Function of communication that deals when feelings are repressed in the organization,
employees are affected by anxiety, which, in turn, affects performance.
c. Motivation Function
a. Information Function
d. Control Function
b. Emotive Function
66. A form of communication transmitted through hearing or sight.
b. Oral
c. Written
d. Nonverbal
a. Verbal
67. A means of conveying message through body language, as well as the use of time, space,
touch, clothing, appearance and aesthetic elements.
b. Oral
d. Nonverbal
c. Written
a. Verbal
68. UNIVAC is
b. Universal Array Computer
c. Unique Automatic Computer
d. Unvalued Automatic Computer
a. Universal Automatic Computer
69. The basic operations performed by a computer are
c. Storage and relative
d. All the above
a. Arithmetic operation
b. Logical operation
70. The two major types of computer chips are
c. Microprocessor chip
a. External memory chip
d. Both b and c
b. Primary memory chip
71. Microprocessors as switching devices are for which generation computers
d. Fourth Generation
a. First Generation
c. Third Generation
b. Second Generation
72. The brain of any computer system is
d. Control unit
c. CPU
b. Memory
a. ALU
73. Storage capacity of magnetic disk depends on
c. disk pack in disk surface
d. All of above
b. bits per inch of tracks
a. tracks per inch of surface
74. The two kinds of main memory are:
a. Primary and secondary
b. Random and sequential
d. All of above
c. ROM and RAM
75. A storage area used to store data to a compensate for the difference in speed at which the
different units can handle data is
a. Memory
b. Buffer
c. Accumulator
d. Address
76. The Domestic use of water amounts to ___ of the total water requirements per capita per day
c. 20%
a. 40%
b. 50%
d. 30%
77. Water supply system means
d. Construction of canal
b. System of collecting purifying and bringing water to user point
c. Distribution of water to sinks, toilets and kitchens in the building
a. Scheme of collection and disposal of used water
78. The multiplying factor, as applied to obtain the maximum daily water demand, in relation to
the average i. e per capita daily demand.
b. 1.8
d. 2.7
a. 1.5
c. 2.0
79. Presence of bacteria in potable (drinking) water causes
b. Bad taste and color
d. Turbidity
c. Disease
a. Bad odor
80. Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste
besides favoring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects
of __________ present in it.
d. None of these
c. Ortho-xylene
b. Potassium cyanide
a. Coal ash
81. The lowest layer of atmosphere is known as the
b. Ionosphere
d. None of these
a. Stratosphere
c. Troposphere
82. ‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not
a ‘particulate’?
b. Smoke and fumes
a. Photochemical smog and soot
c. Dust and Mists
d. None of the above
83. In sewage treatment, the detention period allowed for oxidation ponds ranges from
__________ weeks.
a. 4 to 5
c. 9 to 10
d. 15 to 20
b. 1 to 2
84. Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may
cause
d. Corrosion
b. Explosion
c. Undesirable plant growth
a. Non-biodegradable foam
85. Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to
about __________ decibels.
d. 140
b. 120
c. 75
a. 95