IC Joshi Aviation Met Total Q
IC Joshi Aviation Met Total Q
IC Joshi Aviation Met Total Q
Meteorology
(IC JOSHI)
Instructor
[Type the instructor name] Name:
:
Results: Class:
Period:
Date:
a. Troposphere
b. Tropopause
c.Stratosphere
a. 10-12 km
b. 16-18 km
c.12-14 km
a. 12-14 km
b. 12-13 km
c. 08-10 km
a. Higher
b. Lower
c.Same
5. Height of tropopause
a. Is constant
b. Mid Latitudes
c.Poles
7. Atmosphere is heated by
a. Solar Radiation
c.
8. Tropos means
a. Turning
b. Under current
c.Convection
a. Stable
b. Unstable
c.Neutral
11. Stratosphere is
a. Unstable
b. Neutral
c. Stable
a. 30°lat
b. 40°Iat
c.60°lat
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a. Troposphere
b. Stratosphere
c.Heterosphere
a. 50 km
b. 60 km
c.40 km
15. The middle atmosphere layer characterised by temperature inversion and stability...
a. Troposphere
b. Tropopause
c. Stratosphere
a. Mesosphere
b. Thermosphere
c. Stratosphere
a. -56.5°C
b. -65.5° C
c.-35.5° C
a. 1:3
b. 1:4
c.1:5
a. 1:3
b. 1:4
c.1:5
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20. By volume, the proportion CO2 in the atmosphere is
a. 3%
b. 0.3%
c. 0.03%
a. 15° C
b. 10° C
c.25°C
a. 10-15 km
b. 20-25 km
c.30-35 km
a. 5000 ft
b. 7000 ft
c. 10000 ft
a. Warm
b. Cold
c.Have no effect
a. Thermosphere
b. Mesosphere
c.Stratosphere
a. -05°C
b. -02° C
c.-03°C
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27. Pressure at MSL is 1002.25 hPa. Find the ISA deviation
a. 11 hPa
b. 10 hPa
c.12 hPa
28. In actual atmosphere temp, at 19 km is -60°C. How much it differs from ISA
a. -4.5°C
b. -05.5° C
c. -03.5°C
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ATMOSPHERIC PRESSURE
a. Converge
b. Diverge
c.Go straight
a. Good Weather
b. Bad Weather
c.None
a. Normal
b. Strong
c. Weak
a. Over
b. Under
c.constant
a. Pressure
b. Temperature Tendency
c. Pressure Tendency
a. Aneroid
b. Mercury
c.Alcohol
a. Depression
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b. Secondary Low
c. Col
a. High
b. Low
c.Col
37. The relationship between height and pressure is made use in construction of
a. Altimeter
b. ASI
c.V S I
a. Above MSL
39. Two aircraft flying at the same indicated altitude with their altimeter set to 1013.2 hPa.
One is flying over cold air mass and other over warm air mass. Which of the two has
greater altitude?
40. The rate of fall of pressure with height in a warm air mass compared to cold air mass will
be
a. Same
b. More
c. Less
41. An increase of 1000 feet in elevation near the earth is associated with decrease of
pressure of
a. 100 hPa
b. 1000 hPa
c.3 hPa
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d. 33 hPa
a. Isobars
b. Isotherms
c.Isogonal
d. Isoclinal
43. Isoclinal
a. Polar region
b. Middle latitudes
c. Tropics
45. Flying from Delhi to Calcutta at constant indicated altitude but, experiencing a drift to
Starboard. The actual altitude will be (Vis-a-vis) indicated altitude
a. Lower
b. Same
c.Higher
46. In the Southern Hemisphere, around a Low Pressure Area wind blows
a. In clockwise direction
b. In anticlockwise direction
47. If altimeter reads aerodrome elevation when a/c is on ground, its sub-scale must have
been set
a. QNH
b. QNE
c.QFF
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d. QFE
a. Anemograph
b. Barometer
c.Hygrograph
a. High
b. Low
c.Col
a. Trough
b. Ridge
c.Low
a. Cold areas
b. Warm areas
c.Humid areas
a. 20,000ft
b. 30,000 ft
c.35,000 ft
a. 700 hPa
b. 200 hPa
c. 500 hPa
a. 20,000ft
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b. 30,000 ft
c. 40,000 ft
a. 400 hPa
b. 500 hPa
c.300 hPa
a. 20,000ft
b. 10,000 ft
c.18,000 ft
a. 400 hPa
b. 500 hPa
c. 200 hPa
a. 7,000ft
b. 5,000 ft
c.10,000 ft
TEMPERATURE
a. calm
b. light
c.strong
a. forest
b. ocean
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c. land
a. 3/4 th
b. 30%
c. 5/6 th
62. ALBEDO is
b. Amount of heat
a. Lower
b. Higher
c.Same
b. Above 3°C
a. Wind direction
b. Wind speed
c.Radiation
a. 75%
b. 80%
c.90%
a. Insolation
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b. Convection
c.Radiation
a. Long Wave
b. Albedo
c. Shortwave
a. Directly
b. Indirectly
a. Lower
b. Same
c.Higher
a. sunrise
b. midnight
72. An air parcel is lifted till it gets saturated. The temperature attained at this stage is called
a. Potential temperature
b. Dew Point
c.Wet bulb
a. cold
b. normal
c. warm
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a. completely
b. partially
c.indifferent
75. Higher the temperature ... would be the wavelength of emitted radiation
a. longer
b. shorter
76. Air is a bad conductor of heat. A parcel of air can therefore be regarded as insulated from
the environment
a. False
b. True
a. larger
b. smaller
a. sum total
b. average
a. UV
b. IR
c.Visible
a. T2
b. T3
c.T4
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a. Hot bodies
b. Cold bodies
c.Stars
a. Absolute temperature
b. Humidity
c.Albedo
a. Short Waves
b. Long Waves
c.Both
a. Sensible Heat
b. Latent Heat
a. True
b. False
a. 1.5 m
b. 1.25m
c.2 m
a. opposite to sun
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b. into sun
c.any direction
a. mercury
b. alcohol
c.sprit
ATMOSPHERIC DENSTY
a. Higher
b. Lower
c.Same
a. Higher
b. Lower
c.Same
91. The altitude in ISA at which air density is the same as the observed density is called
a. Density Altitude
b. ISA Density
c.Real Density
a. Kg/sq m
b. g/cu m
c.N/sq m
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93. Higher density altitude means density
a. Higher
b. Lower
c.Same
94. For given pressure and temperature moist air has density
a. Higher
b. Lower
c.Same
a. High Altitudes
b. Warm Air
c.High humidity
d. All these
HUMIDITY
97. The ratio in % between the amount of water vapour present in the air to the amount of
water vapour that it can hold at the same temperature is
a. Humidity
b. Relative humidity
c.Dew point
98. The temperature to which air be cooled at constant pressure to become saturated, is
called
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a. Wet bulb temperature
c. Dew point
d. Humidity
99. Free air temperature, Wet bulb temperature and Dew point temperature are equal when
100. On a rainy day compared to sunny day the length of runway required is
a. More
b. Less
c.Same
101. The spread between Free air temperature and Dew point temperature is .... when
air is saturated
a. Large
b. Least
c.Same
102. The saturation vapour pressure over water is than the ice
a. More
b. Less
c.Same
103. As the temperature of the air increases, the amount of water vapour required to
saturate it
a. decreases
b. increases
c.remains same
104. The actual amount of water vapour contained in a given volume of air at a given
temperature is termed as ...
a. Relative Humidity
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b. Specific Humidity
c. Absolute Humidity
a. decreases
b. remains constant
c.increases
106. It is the lowest temperature which air would attain by evaporating water into it to
saturate it.
c.Dew point
QUESTIONS ON WIND
a. Right
b. Left
a. Left
b. Right
a. False
b. True
a. Left
b. Right
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a. Mid latitudes
b. Poles
c.Equator
a. Mid latitudes
b. Poles
c. Equator
a. Dry &Warm
115. The wind sliding down a hill during night is called wind.
a. Fohn
b. Anabatic
c. Katabatic
116. With the onset of sea breeze there is a in temperature and in RH.
a. Fall/Rise
b. Rise/Fall
c.Fall/Fall
a. Night/Day
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b. Day/Night
a. Starboard drift
b. Port drift
a. Under
b. Over
120. Lines of constant wind speed drawn on weather charts are called
a. Isobars
b. Isotachs
c.Isogons
a. Shorter duration
b. Longer duration
b. The warm wind that blows down the hül on the leeward side
c. The wind which must be added vectorilly to the lower level geostrophic
wind to obtain the upper level geostrophic wind
123. On a weather map where isobars are closely packed, the surface winds are likelyto
be
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124. Anabatic wind occurs
a. At night
c. During day
a. True
b. False
126. Katabatic wind is down slope cold wind due to nocturnal cooling
a. True
b. False
127. Katabatic wind occur due to sinking of air down the hill slope
a. True
b. False
128. Anabatic wind occur due to downward movement of air along valley
a. True
b. False
a. True
b. False
a. True
b. False
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131. The wind blows clockwise around low in S-hemisphere
a. True
b. False
a. True
b. False
a. True
b. False
134. The resultant wind that blows under the influence of pressure gradient force,
geostrophic force and cyclostrophic force is called
a. Gradient wind
b. Geostrophic wind
135. Due to friction, from day to night for an isobaric pattern (in N hemisphere) Surface
wind backs and lulls
a. True
b. False
136. The winds which spiral inward in a counter-clockwise direction in the NH are
associated with
a. Turbulence
137. Lower level wind 05010 kt, upper level wind 23005 kt, what is the thermal wind
a. 05005 kt
b. 23015 kt
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c.05015 kt
a. Backing
b. Veering
a. Backing
b. Veering
a. Gust
b. Squall
141. Sudden change in wind speed from 10 kt to 30 kt for more than a minute or so is
a. Squall
b. Gust
a. False
b. True
143. Cyclostrophic wind gives a good approximation of the 2000' wind in an intense
tropical storm
a. True
b. False
a. False
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b. True
145. Friction causes winds to flow cross isobaric by over land and .... over sea
a. 30/15°
b. 20/30°
c.40/30°
146. If temperature is higher to the S and lower to the N from surface up to higher
levels , then the wind will strengthen with height with no change in
direction in N hemisphere
a. Ely
b. Wly
c.Sly
d. Nly
a. Under estimate
b. Accurate
c. Over estimate
148. Gale is
a. persistent strong winds with mean speed 44 kt, associated with thunderstorm
b. marked increase in wind speed lasing few minutes associated with CB or dust
storm
a. Isobars
b. Isotherms
c.Isallobars
ATMOSPHERIC VISIBILITY
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150. Fog is reported when visibility is reduced to
b. 1000m
c.1000 to 2000
a. 500 m
b. 1000 m
c. 1500 m
d. 2000 m
a. Over land
b. Over sea
c.During day
153. When visibility reduces between 5000 m and 1000 m and RH is almost 100%, it is
a. Mist
b. Haze
c.Fog
a. May to June
b. Dec to Feb
c.Oct to Nov
155. Warm and moist air moving over a cold ground gives rise to:
a. Thunder clouds
c.Frontal clouds
156. Warm and moist air moving over a cold surface causes
a. Radiation Fog
b. Advection Fog
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c.Frontal Fog
158. The radiation fog activity increases after the passage of a...
a. WD
b. Depression
c.Col
a. Nocturnal
b. Dusk
c.Day
a. Water
b. Land
c.Both
a. Radiation
b. Advection
c.Frontal
a. night only
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b. There should be sufficient moisture in atmosphere, clear sky, light wind.
a. Visiometer
b. Transmissometer
c.Ceilometer
a. over sea
b. over Land
a. CS
b. ST
c.NS
d. CU
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168. Showers occurs from
a. CU
b. CB
c.AS
d. AC
a. CI
b. CS
c.ST
d. CB
170. To avoid icing in cloudy conditions, a pilot is advised to fly through a cloud which
shows an optical phenomena
a. Halo
b. Corona
a. AS
b. NS
c.ST
d. CB
172. A uniform layer of cloud resembling fog but not on the ground
a. AS
b. NS
c. ST
a. CI
b. CS
c.AS
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174. NS clouds occur
a. At cold front
b. At warm front
a. AC
b. AS
c. CS
d. CI
a. AS
b. AC
c.CC
d. CS
a. Warm Front
b. Cold front
c. Mountain waves
178. The lowest level below which condensation trails will not form is
a. Mintra Level
b. Drytra Level
c.Maxtra Level
a. Virgo
b. Virga
c.Mirage
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180. CB with distinct anvil is called
a. Castellanus
b. Capillatus
c.Uncinus
a. 3-4/8
b. 8/8
c. 5/8 or more
a. Maxtra Level
b. Dytra Level
c.Mintra Level
183. Cloud of operational significance has base below m or below the highest
minimum sector altitude, which is greater
a. 1500
b. 2000
c.1000
a. Stability
b. Instability
c.Neutrality
a. True
b. False
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a. stable
b. unstable
c.indifferent
a. unstable
b. stable
c.indifferent
a. conditionally stable
b. latently stable
c.potentially stable
a. ELR-DALR
b. ELR>DALR
c.ELR<DALR
a. SALR=ELR
b. SALR<ELR
a. Stable
b. Instable
c. Indifferent
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d. The rate at which ascending parcel of saturated air cools
193. The surface air temp, is 30° C. Assuming DALR prevailing what is the temperature
at 2 km
a. 18° C
b. 10° C
c.42° C
a. Stable
b. Unstable
c.Neutral
195. If environmental lapse rate(ELR) is less than SALR, that part of the atmosphere is
said to be:
a. Absolutely unstable
b. Conditionally stable
c. Absolutely stable
a. 5 ° C /km
b. 15 ° C /km
c. 10 ° C /km
a. 10 ° C/Km
b. 5 ° C/Km
c.5 ° F/Km
a. at 0°C
b. at -15°F
c. at -40°C
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199. Dry air having a temperature of 35°C on surface when forced to rise adiabatically
by 1 km would attain a temperature of
a. 29°C
b. 25°C
c.45°C
a. Stability
b. Instability
c.Neutrality
a. Positive
b. Negative
c.Neutral
a. True
b. False
203. The process which to a large extent determines the vertical distribution of
temperature in atmosphere is
a. Adiabatic
b. Isothermal
c.Isentropic
a. Inversion
b. Lapse
c.(c) Normal
a. Post Monsoon
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b. Monsoon
c. Winters
a. S hemisphere
b. N hemisphere
c.Equator
a. Northern
b. Southern
c.Temperate
a. S hemisphere
b. N hemisphere
c.Equator
a. Northern
b. Southern
c.Temperate
a. AS
b. NS
c.CS
a. water
b. dust
c.ice
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212. The radius of the Bishop's ring is about
a. 32°
b. 22°
c.42°
a. Lapse
b. Isothermal
c. Inversion
a. Lapse
b. Isothermal
c.Inversion
a. Refraction
b. Diffraction
c.Scattering
a. Mist only
b. Fog only
a. Refraction
b. Diffraction
c.Scattering
a. water particles
b. ice crystals
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c.both
a. AS
b. NS
c. CS
a. 32°
b. 22°
c.42°
221. Halo round the sun shows a pure clear on the outside
a. Red
b. Yellow
c.Violet
b. Ice crystals
c.Both
223. The cloud which cause Halo has ... chances of ice accretion
a. negligible
b. maximum
c.medium
a. 32°
b. 42°
c.22°
a. Low
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b. Medium
c. High
PRECIPITATION
226. When super cooled water drops and ice particles co-exist, the ice crystals grow at
the expense of the water drops because
a. Saturation vapour pressure over water drops is less than over the ice crystals
b. Saturation vapour pressure over the ice crystals is less than over water
drops
227. The clouds whose tops extend well above the freezing level are called
a. Warm Clouds
b. Cold Clouds
c.Moderate Clouds
228. The clouds whose tops do not extend to the freezing level are called
a. Warm Clouds
b. Cold Clouds
c.Moderate Clouds
a. Warm Clouds
b. Cold Clouds
a. Warm Clouds
b. Cold Clouds
a. Maritime areas
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b. Inland areas
c.Hilly areas
a. Flash floods
b. Cloud Burst
c.Orographic Rain
a. Top
b. Windward side
c. Leeward side
c.Frozen Rain
a. Winters
b. Summers
c.Post monsoon
a. Morning
b. Afternoon
c.Night
a. Winters
b. Summers
c.Spring
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a. Winters
b. Summers
c.Post monsoon
a. Evening
b. Afternoon
240. Areas to the of western Ghats of India are rain shadow areas
a. W
b. S
c. E
241. A sudden rise in the level of rivers or streams causing floods is called
a. Cloud Burst
b. Catchments flooding
c. Flash Floods
a. Simulation
b. Cloud seeding
c.Nucleation
a. True
b. False
a. NS
b. AC
c. CB
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a. 0.05
b. 1
c.2
ICE ACCRETION
246. Hoar frost occurs on airframe in clear air when the temperature of airframe is
b. frost point
247. In clouds at temperatures below 0° C an aircraft may encounter icing of the type
a. only Glazed
b. only Rime
a. Light porous
b. Solid
a. Small
b. Large
c.Medium
a. Rime
b. Hoar Frost
c.Glazed
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251. Airframe icing occurs below 0°C. Its probability of occurrence decreases
progressively below -20 °C, as at lower temperatures the proportion of supercooled
water drops in a cloud
a. Increases
b. Decreases
252. CI, CS and CC clouds consist mostly ice crystals. Icing hazard is therefore
a. Maximum
b. Medium
c.Negligible
253. AS, NS consist of supercooled water drops and ice crystals in varying proportion
icing is possible.
a. Maximum
b. Light or moderate
c. Negligible
a. Severe
b. Light to moderate
c.Negligible
255. In TCU icing may range from light to severe type at.least up to level.
a. - 40 °C level
b. 30 °C level
c. - 20 °C level
256. In CB icing may range from light to severe type up to -20°C level. Below this
temperature severe icing is
a. not significant
b. significant
c.maximum
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257. Liquid water content is an important factor in icing. As the maximum water
concentration is around , maximum ice formation in clouds may also be expected
around that level.
a. -25° C level
b. -20° C level
c. -15° C level
258. Carburetor icing occurs when air from intake passes through a ventury (choke) and
causes expansional cooling and vaporization of fuel. Serious icing can occur at extreme
temperatures
a. 13 °C
b. 30°C to -10°C
c.20 °C
259. occurs in a moist cloudless air on an aircraft surface having temp, below 0° C, due
to sublimation of water vapour onto feathery ice crystals.
a. Rime
b. Glazed
c. Hoar Frost
260. occurs in St, Sc, Ac, Cu, Ns at temperature -10 to -40° C and in Cb at temperature
-20 to -40°C
a. Rime
b. Glazed
c.Hoar Frost
261. In clouds ………… occurs when a wide range of water drop sizes are present at
temperatures between 0° C and -40° C
a. Rime
b. Glazed
262. occurs in AS, NS, SC and towering CU or CB between 0° C and -20° C, in warm front
below 0° C, especially if the aircraft has rapidly descended from a colder region
a. Glazed
b. Fume
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c.Mixture of Rime and Clear ice
a. Hoar Frost
b. Hoar Frost
c.Clear ice
a. Decreases
b. Increases
QUESTIONS ON THUNDERSTORM
a. Having layers
c.Severe thunderstorms which occur over Peninsula during hot weather perioc
a. Post-monsoon
b. Winter
c. Pre-Monsoon
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269. A 'mature' thunderstorm has
270. Aircraft icing is most favoured in the cloud which have temperatures ranging
between
b. 0° C and - 20° C
c. below -40 ° C
a. ST
b. AS
c. CB
272. Hail is
a. Solid precipitation which commonly occurs over the mountainous regions during
winter.
a. CB
b. CU
c.NS
a. 7 to 8 hrs
b. 3 to 4 hrs
c.1/2 - 1 hr
a. 2 hrs
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b. 30 to 45 min
c.3 to 4 hr
a. Jan-Feb
b. Mar-May
c.June-Sep
d. Oct - Dec
a. Winter
b. Hot weather
c.Monsoon
d. Post Monsoon
a. N India
c.Central India
b. Orographic lifting
a. Mornings
b. Afternoons
c.Nights
a. Chota-Nagpur hills
b. Deccan Plato
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c.Khasi hills
a. S India
b. N India
c.NE India
a. 25 kr
b. 30 kt
c. up to 21 kt
a. less than 4 km
b. less than 2 km
c.less than 6 km
a. < 4 km
b. 4 km or more
c.> 8 km
286. For detecting precipitation a Radar wavelength in the range ... is suitable
a. 30 to 200 mm
b. 400-500 mm
c.600-700 mm
a. 20 mm
b. 40 mm
c. 60 mm
a. 10 mm
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b. 20 mm
c. 30 mm
a. 50 mm
b. 100 ram
c.200 mm
a. afternoon
b. night
c.early morning
a. afternoon
a. afternoon
b. night
c.early morning
a. 2-3 hr
b. 3-4 hr
c. 6 to 24 hr
294. Loud peals of thunder, frequent flashes of lightning, moderate or heavy showers
accompanied by light hail with maximum wind speed 15-40 kt is classified as
a. Light TS
b. Moderate TS
c.Severe TS
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a. Horizontal
b. Vertical
c.Slant
a. in vertical
b. to the South
297. The air mass which originates at sea in low Latitudes is called
a. Polar maritime
b. Tropical continental
c.Tropical maritime
299. If the advancing cold front is colder than the cool air mass of the warm front, the
advancing cold front undercuts and lifts both the warm and cool air masses of the warm
front. This is
a. Warm Occlusion
b. Cold Occlusion
300. The airmass which originated over land area located in polar region:
b. Warm Front
c.Occluded Front
a. Cold front
b. Warm front
a. Warm front
b. Cold front
a. Cold front
b. Warm front
306. Cold front moves at ... the speed of a warm front moves
a. Same
b. Double
c.Half
a. Ahead
b. Behind
c.At the
a. Tropical cyclone
b. Monsoon Depression
c. Extra-tropical Cyclones
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309. CB, Roll-type clouds, SC, AC with embedded CB are associated
a. Cold front
b. Warm front
310. The Surface of discontinuity between the Polar Easterlies and the temperate
Westerlies is called
a. Equatorial Front
b. Tropopause
c. Polar Front
311. The air mass which origir>ates from sea area located in lower Lat is
a. Cols
b. Occluded Fronts
c.Highs
a. Summers
b. Post Monsoon
c. Winters
a. Fall
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b. Rise
c.Remain same
316. CI, CS, AS, NS, ST in sequence are associated with the front
a. Warm
b. Cold
c.Occluded
a. Ahead
a. Ahead
b. During
c. After
a. Cold
b. Warm
c.Occluded
a. Ahead
b. During
c.After
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322. Precipitation ceases after the passage of a front
a. Cold
b. Warm
c.Occluded
a. Backs
b. Veers
324. Whenever the low of a WD has two or more closed isobars, at 2 hPa interval, it is
termed as
a. Troughs in Westerlies
b. Western Depression
c.Western Cyclone
JET STREAMS
325. The arbitrary lower limit of jet core velocity has been assigned by WMO as
a. 60 kt
b. 60 m/s
c.70 m/s
a. one maxima
a. 5m/s/ km
b. 6m/s/km
c.8m/s/km
328. Compared to horizontal wind shear the vertical wind shear in a Jet stream is
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a. weaker
b. stronger
c.same
a. Core
b. Axis
c.Jet streak
330. The wind speed along the axis of a jet stream is always
a. Uniform
b. Not uniform
331. Along the axis of a jet stream there are centres of high speed winds, these are
called
a. Jet streaks
b. Core
c.Axis
332. In a wavy jet the Jet streaks are located over or near the
a. Ridge
b. Trough
a. Westerly
b. Easterly
c.Southerly
a. 30° N
b. 27° N
c.35° N
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335. The southern most position of STJ is in February is
a. 22° N
b. 20° N
c.18° N
a. Jun to Jul
b. Oct to May
c.Aug to Sep
337. STJ has a layered structure. There are often two layers of maximum wind to the...of
jet core
a. S
b. N
c.SW
a. Northwards
b. Upstream
c. Downstream
a. Small
b. Large
c.Moderate
a. above
b. below
c.along
a. May to Jun
b. Sep to Oct
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c. Jun to Aug
a. 13° N
b. 17° N
c.18° N
343. The TJ is located over Indian, approximately at a height of[Type an answer here.]
a. 15 -16 km
b. 12 - 13 km
c. 11 - 12 km
a. July - Aug
b. Sep - Oct
c.June
345. In the TJ the wind shears are much than the STJ
a. more
b. less
c. same
346. TJ is
a. Westerly
b. Easterly
c. Southerly
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CLEAR AIR TURBULENCE AND MOUNTAIN WAVES
347. For mountain waves to form there should be flow of air across the ridge, generally
within ……………of the perpendicular to the ridge.
a. 30°
b. 45°
c. 60°
348. For mountain waves to form the wind speed for small mountains should be atleast
a. 15 m/s
b. 10 m/s
c. 7m/s
349. For mountain waves to form the wind speed for large mountains should be atleast
a. 15 m/s
b. 10 m/s
c. 7m/s
350. For mountain waves to form the atmosphere should be up to the ridge, where air
stream strikes the ridge.
a. Unstable
b. Stable
c.Indifferent
351. For mountain waves to form the atmosphere should be at higher levels above the
ridge
a. Unstable
b. Stable
c. Indifferent
a. Troughs
b. Ridges
c. Valley
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353. Clear air turbulence is often encountered
354. Most CAT occurs on the of a jet stream and in the vicinity of upper level frontal
zones where temperature contrasts are strong.
a. Fringes
c. Axis
355. CAT is the bumpiness experienced by aircraft at high altitudes in either cloud-free
conditions or in stratiform clouds
356. When approaching an area where mountain waves have been reported, a pilot
should expect:
b. Intense up drafts and down drafts on the lee side of the mountains
c.Moderate to severe turbulence as far as 20 to 30 miles from the range on lee side
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TROPICAL SYSTEMS
a. 27 -33 kt
b. 48 - 63 kt
c. 17-27 kt
a. Tropical cyclone
b. Extra-tropical depressions
c.Monsoon depressions
a. SE sector
b. NW sector
c.SW sector
d. NE sector
360. On whatever compass course the cyclone is approached, strong winds from the port
indicate that the centre lies somewhere
a. Ahead
b. Behind
c. Port
d. Starboard
361. The well developed extra tropical cyclonic storm is composed of two main frontal
systems and an occluded front, which varies in extent:
b. A low with a warm front radiating out Southwards followed by a cold front.
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a. Moderate Weather
b. Stormy weather
c. Clear skies
a. True
b. False
a. eye wall
b. eye
365. No CS form
a. At Poles
b. At Equator
c. At Lat 40 deg
a. 2-3 Days
b. 10 Days
c. 6-7 Days
a. Severe
b. Very Weak
c.Moderate
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a. Shelf Clouds
b. Wall Clouds
c. Rotor Clouds
a. Same
b. Different
c.Both
CLIMATOLOGY OF INDIA
a. Post Monsoon
b. Hot weather
c. Monsoon
d. Winter months
a. Jan-Feb
b. Mar-May
c. Jun-Sept
d. Oct - Dec
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375. The monsoon current over the West coast of India is
a. SWly
b. SEly
c. NEly
a. Jan to Feb
b. March to May
c. June to Sep
d. Oct to Dec
379. Rainfall occurs all over the country during monsoon when
381. With a depression over the head Bay fair weather during monsoon occurs over
a. Assam
b. W Bengal
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c. Orissa
a. NE monsoon
b. SW monsoon
c. SE monsoon
a. Mar to May
b. Jun to Sept
c. Oct to Nov
d. Jan to Feb
a. weak
b. steep
c.same as winters
a. Bay of Bengal
b. NE India
c. Central India
d. Pakistan
386. During vigorous monsoon period the pressure gradient over west coast is
a. Weak
b. Steep
c.Normal
a. Easterly
b. Westerly
c.Nly
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d. Southerly
388. An aircraft flying in Winter season from Chennai to Kolkata at 12 km will experience
winds
a. Ely
b. Wly
c.Nly
d. Sly
389. An aircraft flying in Pre monsoon season from Delhi to Kolkata at 10 km will
experience winds
a. Easterly
b. Westerly
c. Northerly
d. Southerly
a. SEly
b. SWIy
c. Nly
d. NWly
391. An aircraft flying in winter season from Delhi to Kolkata at 06 km will experience
winds
a. SEly
b. SWIy
c. Nly
d. NW - Wly
392. An aircraft flying in winter season from Delhi to Kolkata at 06 km will experience
a. Port drift
b. Starboard drift
c. Tail wind
d. Head win
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393. An aircraft flying in winter season from Kolkata to Nagpur at 02 km will experience
a. Port drift
b. Starboard drift
c. Tail wind
d. Head wind
394. During break monsoon the pressures all over the country
a. Rise
b. Fall
c. Do not change
395. During break monsoon sometimes the surface winds over East UP and Bihar are
a. very strong
b. weak
c.normal
a. Pre monsoon
b. Winters
c. Post monsoon
d. SW monsoon
a. Orissa
b. Punjab
c. Gujarat
d. Chennai
398. El Nino episode is applied by fishermen to a period of reduced fish catch due to
suppression of upwelling
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399. Maximum cyclones occur over India in
a. Pre monsoon
b. Winters
c. Post monsoon
d. SW monsoon
a. Pre monsoon
b. Winters
c. Post monsoon
d. SW monsoon
a. Pre monsoon
b. Winters
c. Post monsoon
d. SW monsoon
b. NW India
c.S India
GENERAL CIRCULATION
403. The pole wards moving air piles up in the subtropical regions and forms high
pressure belt at the surface, called
a. Subtropical high
b. Polar High
c. Equatorial high
a. advection
b. convection
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c. subsidence
405. The occurrence of large deserts near 30N and 305 are due to large scale
a. subsidence
b. convection
c.advection
406. A part of the sinking air over the subtropical highs flows towards the equator,
turning west (in the northern hemisphere) due to the Coriolis force. This surface air is
called
a. Trade winds
b. Roaring forties
c. Doldrums
407. The huge vertical circulations, one between the equator and 3 ON and another
between equator and 30S, are called
a. Hadley Cells
b. Ferrel Cells
c. Polar cells
408. The descending branch of the Hadley cell marked by calm winds and high pressure
at the surface are called
a. Tropical Latitudes
b. Middle latitudes
c. Horse Latitudes
409. The winds in the upper troposphere are westerly. These are known as
a. Natural Westerlies
b. Steady Westerlies
c. Zonal Westerlies
a. Westerlies
b. Easterlies
c.Zonal Westerlies
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411. The disturbances of middle latitudes move from
a. W to E
b. E to W
c. N to S
d. S to N
412. The tropical disturbances which form in the equatorial low pressure belt move in a
a. Easterly direction
b. Westerly direction
c. Southerly direction
413. Tropical disturbance which reach the zone of transition in the upper level flow
change course and begin to move in a
a. Perpendicular direction
b. Opposite direction
c. Southwards
414. Latitudinally, on the average there is radiation in the tropics than in the polar
regions
a. surplus
b. Deficit
c.balance
415. The systems like highs, lows, cyclonic circulation etc are associated with distinct
types of weather. A study of the behaviour of these systems, known as
a. Synoptic Meteorology
b. Climatology
c. Physical Meteorology
a. ITCZ
b. Horse Latitudes
c. Equatorial Doldrums
417. Steady NE winds in the N hemisphere and SE winds in the S hemisphere are called.
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a. Easterly winds
b. Trade Winds
c. Tropical Winds
418. For non-scheduled National Flights an advance notice (before ETD) is required to be
given to Class I Met Offices
a. 3 hr
b. 18-24 hr
c.6 hr
419. For non-scheduled National Flights advance notice an advance notice (before ETD)
is required to be given to Class III Met Offices
a. 3 hr
b. 18-24 hr
c. 6 hr
420. World Area Forecast System provides high quality en-route forecasts of to Met
Offices
a. Met Offices
c.SIGMET
d. TREND
a. 4
b. 5
c. 6
a. 14
b. 19
c. 16
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423. There are Class III Met Offices
a. 42
b. 52
c. 62
a. 1
b. 2
c. 3
a. 18 hr
b. 12 hr
c. 9hr
a. 1 hr
b. 2 hr
c. 3 hr
b. TAF
c. AIREP
428. Local Forecast is issued three times a day valid for next
a. 18 hr
b. 8hr
c. 9hr
a. 50 NM
b. 100 NM
c. 150 NM
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430. Prognostic Charts are issued by
a. RAFC
c. MWO
a. 18 hr
b. 12 hr
c. 9hr
a. below 460
b. 460
c. above 460
433. CODAR is
a. Radar Report
c.Coded ARFOR
434. WINTEM is
a. actual
b. expected
c. both
a. in flight
b. on ground
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c.both
a. RAFC
c. MWO
a. 4 hr
b. 18 hr
c. 6 hr
a. Rain
b. Volcanic Ash
c. SEV Icing
440. AIRMET is issued by a MWO for the occurrence or expected occurrence of en-route
weather phenomena, which may affect the safety of
a. low-level aircraft
c.both
b. low-level aircraft
c. both
a. 3 hr
b. 4 hr
c. 6 hr
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a. 30 kt
b. 24 kt
c. 15 kt
a. 45°
b. 30°
c. 60°
445. Airfield Warning for gliders, light aircraft and helicopters is issued for expected wind
speed
a. 15 kt
b. 17 kt
c. 30 kt
446. Wind Shear Warning is issued for the observed or expected wind shear above
runway
a. up to 500 m
b. above 500 m
c. 300 m
a. on ground
b. in flight
c. both
a. Mumbai only
b. Kolkata only
c. both
a. SIGMET
b. TAP only
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c. TAF and METAR
a. within India
b. outside India
a. Two
b. Three
c. Four
STATION MODEL
a. NW
b. NE
c.SE
a. 20-25 kt
b. 16-22 kt
c. 18-22 kt
a. AC
b. AS
c. AC &AS
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a. CU
b. SC
c. ST
a. CC
b. CI
c. CS
a. 200 m
b. 250 m
c. 100 to 199m
a. 2/8
b. 4/8
c. 3/8
a. 29.5 to 30.4° C
b. 29.1 to 30.4°
c.30.6 to 30.4°
a. Dry
b. Wet
c. Dew Point
a. QFE
b. QFF
c. QNH
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462. Pressure value in hPa is
a. 996
b. 996.2
c. 1096.2
a. 6 hr
b. 3hr
c. 24 hr
b. Continuous Rain
c.Heavy Rain
a. 2 mm
b. 1.5 mm
c. 1,6 to 2.4 mm
a. 0300 to 0300 Z
b. 0100 to 2400Z
a. 5 KMH
b. 5 MPS
c. 5 KT
a. NW
b. SW
c.NE
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469. Speed of Ship reported is averaged for
a. 3 hr
b. 6 hr
c. 12 hr
a. 500 to <1000 m
b. 1000 to 2000m
METAR VIDP 160230 30005KT 290V050 1500S 6000N R15/P1500U BR FEW020 FEW025CB
SCT120 BKN300 32/27 Q1003 REFG TEMPO FM0330 22015G25KT 3000
+TSRAFEW010SCT025CBBKN150BE CM GAT0415 27008KTCAVOK=
a. 15'"
b. 16th
c. 17th
a. 0630 1ST
b. 0230UTC
c.0230 1ST
a. 2- 6 kt
b. 3-7 kt
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c. 4-6 kt
a. 290 to 050°
b. 050 to 290°
c.200 to 050°
a. N
b. S
a. 1500m
b. 6000 m
c. 3000 m
a. 2000 m
b. 2500 ft
c. 2500 ft
a. 1500 m
b. >1500 m
c.< 1500 m
a. Decreased
b. Increased
c.Remained same
a. Fog
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b. Brown Dust
c. Mist
a. 1-2/8
b. 2-4/8
c. 5-7/8
a. 1-2/8
b. 2-4/8
c. 5-7/8
a. 2500 m
b. 3000 ft
c. 2500 ft
a. 3000 m
b. 30000 m
c. 30000 ft
a. 1 hr
b. 2hr
c. 3 hr
487. The wind in TREND from o330 UTC is valid up to ... UTC
a. 0400
b. 0430
c. 0415
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a. 6000 m
b. 10 km
c. >10 km
489. Q1003 is
a. QFE
b. QFF
c. QNH
a. Very Dry
b. Moist
c. Saturated
491. Just before the METAR was issued the weather was
a. Rain
b. Mist
c. Fog
a. 31.5 to 32.4 ° C
b. 32.1 to 32.4 ° C
c. 31.5 to 32.4 ° C
a. 800 m to 5000 m
b. 0 to 800 m
c. 5000 m to 10 km
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495. Visibility is reported in steps of 100 m when visibility is
a. 800 m to 5000 m
b. 0 to 800 m
c. 5000 m to 10 km
a. 800 m to 5000 m
b. 0 to 800 m
c. 5000 m to 9999
a. 800 m to 5000 m
b. 9000 to 9999 m
c. 10 km or more
a. 2°C
b. 3°C
c.2.5°C
a. - 12
b. - 13
c. MS 12
a. exact value
b. upper value
c. lower value
a. Q1002
b. Q1003
c. Q1002.6
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502. QNH 29-92 inches is reported as
a. Q2900
b. A2992
c. A 3000
a. < 1000 m
b. 1000 m
c. > 1000 m
b. 1000 to 5000m
c. >1000 m
505. CAVOK signifies Visibility, Cloud and present weather better than the prescribed
values or conditions
a. Ceiling
b. base
c.amount
a. 9-10 km
b. 10 km or more
c.10 km only
507. CAVOK is issued when (i) Visibility 10 km or more (ii) No weather of significance
(iii)No clouds below 1500 m or below the highest minimum sector altitude, which ever is
greater and no cumulonimbus.
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508. SPECI is issued when (i) Change in wind direction by > 60° and speed before and/
after change is > 10 kt. (ii) Mean speed has changed by > 10 kt (iii) Variation from
mean speed by > 10 kt and speed before and/ after change > 15 kt
509. SPECI is issued when Clouds are (i) BKN or OVC base at 30, 60, 150, 300, 450 m (ii)
Cloud amount below 450 m changes: From SKC/ FEW/ SCT to BKN / OVC From
BKN/ OVC to SKC/ FEW/ SCT.
510. SPECI is issued for vertical visibility, by stations having Ceilograph, when sky is
obscured
a. True
b. False
511. SPECI is issued when surface temperature has increased by or more from the last
observation.
a. 3° C
b. 4° C
c. 2° C
QUESTIONS ON TAF
TAF VILK 241800Z 250009 0900SKT 0800 EG BECMG 0405 09015KT 6000 SCT008 BKN120
TEMPO 0608 J2015G30KT3000 TSRAFEW012 FEW025CB BKNIOO BECMG AT 0800
09010KT 7000 EEW030 SCT120 BKN280 =
a. 23rd
b. 18lh
c. 24th
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513. The TAF has been issued at
a. 2330 1ST
b. 1830 UTC
c.24 UTC
a. 09 kt
b. 06 kt
c. 08 kt
a. 120°
b. 090°
c. 050°
a. 23rd
b. 24'"
c. 25th
a. 1500m
b. 0800 m
c. 0200 m
a. 1000 m
b. 1000 ft
c. 0800 ft
a. 0600 UTC
b. 0600 1ST
c.0800 UTC
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520. Direction of gusty wind is
a. 090°
b. 100°
c. 120°
a. Fog
b. TSRA
c.Mist
a. 1-2/8
b. 3-4/8
c.5-7/8
a. 1-2/8
b. 2-4/8
c.5-7/8
a. 2500 ft
b. 3000 m
c.2500 m
a. 2800 m
b. 28000 m
c. 28000 ft
a. 23 to 00 1ST
b. 18 to 00 UTC
c. 20 to 12 UTC
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QUESTIONS ON ROFOR
ROFOR 010000Z 010610 KT VECC VILK 2SC030 2CB030 3AC100 2CI300 7///170 621800
541501 405022 28015 407010 28020 410005 29030 420M05 27045 440M41 27105
11111 12870 380120 22222 36140 2825=
a. 0610 UTC
b. 0000 1ST
c. 0000 UTC
a. KT
b. MPS
c. KMH
a. 300 m
b. 300 ft
c. 3000 ft
b. 17,000 ft
c. 1.7 km
a. 7///170
b. 621800
c. 54//609
a. Nil
b. Light
a. 7
b. 6
c. 5
a. 21,000 ft
b. 18,000 m
c. 15,000 ft
a. 300 m
b. 600 m
a. 15,000 ft
b. 5,000 ft
c. 12,000 ft
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538. Thickness of turbulence expected is?
a. 2000 ft
b. 300 m
c. Up to Top of cloud
a. 280/10 kt
b. 280/15 kt
c. 280/20 kt
a. 270/45 kt
b. 270/45 KMH
c. 270/40 kt
a. - 05 °C
b. 05 °C
c. 265 K
a. - 45 °C
b. - 41 °C
c. 233 K
a. 10
b. 01
c.02
a. 22222
b. 11111
c. 111111
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545. Indicator group for Maximum Wind in ROFOR is
a. 22222
b. 11111
c. 111111
a. 120 kt
b. 130 kt
c. 140 kt
a. 40000 ft
b. 36000 ft
c.38000 ft
a. 27 N/70 E
b. 28 N/75 E
c. 28 N/70 E
a. 25 kt
b. 30 kt
c.38 kt
a. 125 kt
b. 120 kt
c. 140 kt
a. 40,000 ft
b. 36,000 ft
c. 38,000 ft
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552. Wind at 40,000 ft expected is?
a. 270/105 kt
b. 270/115 KMH
c.270/140 kt
Page 89