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Question Bank
Questions for IC ADDITIONAL QUESTIONS
Answer the following questions
Test Mode
Training Mode
1. How much in advance of departure a pilot must notify the Aeronautical Met Station (AMS) requiring Met Forecast for a national flight ?
6 hr
18 to 24 hr
12 hr
3 hr
2. The air can hold more moisture at MSL over the
Temperate latitudes
20° Latitude
Poles
Equator
3. During pre - monsoon the pressure gradient in the S parts of East coast of India is from
W to E across the coast
N to S along the coast
S to N along the coast
E to W across the coast
4. The dew point temperature
is equal to the air temperature during mist
is always higher than wet bulb temperature for unsaturated air
changes by cooling or warming
is higher if air contains more water vapour
5. Above which datum the cloud base is reported at airports?
above the aerodrome level
above mean sea level
above standard pressure level
above pressure level in ISA
6. SIGMET message is
Trend type of landing forecast passed to operators
Aerodrome forecast in plain language
Special Reports to local ATC unit and concerned operators
Occurring or expected, enroute weather, which may affect safety of the air operation
7. METAR VIAG 250300Z 27005KT 1200 + SHRA FEW008 SCT025 BKN080 28/25 Q1004 TEMPO 0405 0800 + TSRA FEW020 CB OVC300 = In the METAR surface visibility in TS is
800 m
1200 m
4050 m
0300 m
8. with altitude in an isothermal atmosphere the density of the air
decreases
increases with height
first decrease and then decrease
does not change
9. The Polar Front is
Not continuous
A transition Zone between Polar and Arctic Westerlies
Boundary between Arctic and Polar Air masses
Continuous
10. In general circulation over the globe the equatorial low pressure belt is at the junction of which cells ?
Polar cells
Hadley cells
Ferrel and Hadley cells
Ferrel cells
11. The atmospheric pressure at an aerodrome is equal to the MSL pressure then
None of the above
QNH<QFE
QNH=QFE
QNH>QFE
12. Due to Coriolis force an Ely wind blowing over the equator will
get deflected to the left
Become Wly
remain unchanged
weaken
13. When visibility is 800 m to 5000 m, in a METAR it is reported in steps of
100 m
500 m
1000 m
200 m
14. The minimum notice required to be given to an aerodrome Met office (AMO) by an aircraft operator needing Met data for an National flight is
3 hr
6 hr
18 to 24 hr
12 hr
15. Convective clouds develop at a place when the atmosphere is
none of the above
neutrally stable
absolutely stable
conditionally stable
16. Which of the following Indian month corresponds to Grishm Ritu
Jyeshtha and Asadha
Phalguna
Paush
Shravana
17. In a METAR the third layer of clouds is reported when amount is
3/8 or more FEW, SCT
5/8 or more BKN or OVC
5/8 or less SCT, BKN
3/8 or more SCT, BKN or OVC
18. The ITCZ
usually lies along the Equatorial Trough
is a region of calm winds and layer type of clouds
affects only N hemisphere in winters
affects S hemisphere in monsoon
19. If after the issue of a SPECI, conditions continue to be below the prescribed limit then the next routine report will be a
SPECIAL
could be METAR or SPECI
METAR
SPECI
20. The main cause of occurrence of weather over the earth surface is
Changing pressure
Advection of moist air
Movement of air mass
Variation in insolation
21. Wind at 1 km height is 320/20 kt whereas surface wind is 260/05 kt because of
Thunderstorm
Friction
Convection
Subsidence
22. In India in a VOLMET broadcast
only SPECI is included
METAR, SPECI, SIGMET and TAF are included
only TAF are included
SIGMET is excluded
23. The upper air report from an a/c other than weather reconnaissance a/c has the identification code as
RAWIN
VOLMET
CODAR
WINTEM
24. The Fronts associated with WDs over NW India in winters are mostly
Warm Occlusion
Cold Fronts
Cold Occlusion
Warm Fronts
25. SPECI is issued for RVR when it changes or passes
200m
900m
150m
400m
26. Over the earth deserts are located in the regions of
Subtropical high
Polar Front
ITCZ
Equatorial trough
27. The amount of water vapour which air can hold depends on
Wet bulb temperature
Dew point temperature
Dry bulb temperature
Virtual temperature
28. Jet streams are strongest when temperature gradient are greatest
True
False
29. In a SPECI the lowest layer of clouds, regardless of amount, is reported as
FEW, SCT, BKN or OVC
FEW, SCT or OVC
SCT, BKN or OVC
BKN or OVC
30. A day is called Rainy Day when the amount of Rainfall in a day is
10 mm or more
7.5 mm or more
2.5 mm or more
at least 1.0 mm
31. Stability of atmosphere is determined by
ELR
DALR
Inversion
SALR
32. Above the friction layer winds mostly blow parallel to isobars due to balance of
Coriolis force and Geostrophic force
Coriolis force and Centripetal force
Coriolis force and pressure gradient force
Coriolis force and Gravitational force
33. In an arid area the cloud which is capable of causing Dust Storm is
CI
CU
NS
CB
34. The variable surface wind speed refers to
> 02 KT
04 KT or less
Calm
<03 KT
35. Highest annual rainfall over the earth occurs the regions?
Tropical regions
equatorial regions
Temperate regions
Polar regions
36. The wind Bora is a
violent Wly wind
warm Anabatic wind
light maritime Ely wind
cold Katabatic wind
37. Cold core low pressure system
intensifies with height
weakness with height
does not change with height
veers with height
38. Which of the following Indian month corresponds to Winter/Shishira Ritu
Kwar
Magha and Phalguna
Shravana
Pausha
39. What controls the movement of most TS ?
wind at 30,000 ft
jet stream
wind at 700 - 500 hPa
wind at 400 hPa
40. The sun is highest at noon, but two/three hours later the earth receives more radiation. Hence maximum temperature is around 1500 hr. It is due to
Rotation of the Earth
Angular momentum
Thermal cooling
Thermal Inertia
41. Which of the following Indian month corresponds to Sharad Ritu ( Post monsoon)
Shravana
Phalguna
Asauj and Kartika
Jyeshtha
42. Flight forecast in "Chart from of Documentation" supplied in India consists of
SIGWX chart and prognostic charts for 300, 250 and 200 hPa
Synoptic charts 03 and 12 UTC and U/A charts for 00 and 12 UTC
Latest surface synoptic chart and upper air charts
SIGWX chart and upper air charts for 850, 500 and 300 hPa
43. Fog is produced in Fronts by
frequent Rain
evaporation and precipitation
freezing Rain
adiabatic cooling
44. The main cause of ground inversion is
Convection
Release of latent heat
Incident solar radiation
Terrestrial radiation on calm and clear night
45. An a/c at FL180 in July from Kolkata to Mumbai will generally experience
Wly wind
Ely wind
Sly wind
Nly wind
46. During SW monsoon the wind at FL400 over Bangaluru is generally
Strong Ely
Fluctuates between Ely and Wly
Weak Sly
Strong Wly
47. Extreme turbulence in a TS can be assessed from
appearance of Anvil
heavy Ice accretion
Hail
frequent lightning
48. The hailstones occur from
warm clouds only
cold clouds only
NS clouds
both warm and cold clouds
49. The strong Wly winds which blow in both the hemispheres between 35° and 60° Lat are called
Trades
Jetstreams
Polar Wly
Roaring Forties
50. Thermal lows are generally located over
Movement region
Temperate region
Equatorial region
Polar region
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