ADDITIONAL QUESTIONS – Air – DGCA Question Bank For Politics

#1. The main cause of occurrence of weather over the earth surface is

Changing pressure

Advection of moist air

Variation in insolation

Movement of air mass

#2. Thermal lows are generally located over

Polar region

Equatorial region

Temperate region

Movement region

#3. The main cause of ground inversion is

Release of latent heat

Incident solar radiation

Convection

Terrestrial radiation on calm and clear night

#4. Above the friction layer winds mostly blow parallel to isobars due to balance of

Coriolis force and Geostrophic force

Coriolis force and pressure gradient force

Coriolis force and Gravitational force

Coriolis force and Centripetal force

#5. Wind at 1 km height is 320/20 kt whereas surface wind is 260/05 kt because of

Subsidence

Convection

Friction

Thunderstorm

#6. The amount of water vapour which air can hold depends on

Dew point temperature

Wet bulb temperature

Dry bulb temperature

Virtual temperature

#7. In general circulation over the globe the equatorial low pressure belt is at the junction of which cells ?

Hadley cells

Polar cells

Ferrel and Hadley cells

Ferrel cells

#8. The dew point temperature

is higher if air contains more water vapour

changes by cooling or warming

is equal to the air temperature during mist

is always higher than wet bulb temperature for unsaturated air

#9. What controls the movement of most TS ?

jet stream

wind at 400 hPa

wind at 700 - 500 hPa

wind at 30,000 ft

#10. Isohyets are the line of equal

Humidity

Sunshine

Rainfall amount

Density

#11. How much in advance of departure a pilot must notify the Aeronautical Met Station (AMS) requiring Met Forecast for a national flight ?

3 hr

6 hr

12 hr

18 to 24 hr

#12. An a/c cruising at FL500 in July from Chennai to Trivandrum will generally experience

Weak Sly wind

Subtropical Wly wind

Tropical Ely wind

Tropical Jet stream

#13. 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

Angular momentum

Thermal cooling

Thermal Inertia

Rotation of the Earth

#14. Which of the following Indian month corresponds to Grishm Ritu

Jyeshtha and Asadha

Shravana

Phalguna

Paush

#15. Due to Coriolis force an Ely wind blowing over the equator will

get deflected to the left

Become Wly

weaken

remain unchanged

#16. The surface wind at coastal stations on west coast of India during late night/early morning in pre - monsoon season is

Nly

Ely

Wly

Sly

#17. Convective clouds develop at a place when the atmosphere is

absolutely stable

conditionally stable

neutrally stable

none of the above

#18. In a SPECI report the QNH 1005.8 hPa is reported as

1016 hPa

1015.8 hPa

1005 hPa

1016.8 hPa

#19. Stability of atmosphere is determined by

Inversion

DALR

ELR

SALR

#20. The characteristics features, good visibility and turbulence, are of

High pressure area

stable air mass

unstable air

cold polar air mass

#21. Extreme turbulence in a TS can be assessed from

heavy Ice accretion

frequent lightning

Hail

appearance of Anvil

#22. Jet streams are strongest when temperature gradient are greatest

True

False

#23. While planning to land during TS, which is the most expected serious aviation hazard

Hail storm

Downdraught

WS and Turbulence

Heavy rain

#24. In an arid area the cloud which is capable of causing Dust Storm is

CI

CU

CB

NS

#25. If after the issue of a SPECI, conditions continue to be below the prescribed limit then the next routine report will be a

METAR

SPECIAL

SPECI

could be METAR or SPECI

#26. Fronts are characteristics of

Tropical cyclones

Monsoon depression

TS

Extra Tropical Depressions

#27. In India in a VOLMET broadcast

SIGMET is excluded

METAR, SPECI, SIGMET and TAF are included

only SPECI is included

only TAF are included

#28. In a SPECI the lowest layer of clouds, regardless of amount, is reported as

FEW, SCT, BKN or OVC

SCT, BKN or OVC

BKN or OVC

FEW, SCT or OVC

#29. The atmospheric pressure at an aerodrome is equal to the MSL pressure then

QNH>QFE

QNH<QFE

QNH=QFE

None of the above

#30. An a/c at FL180 in July from Kolkata to Mumbai will generally experience

Wly wind

Ely wind

Nly wind

Sly wind

#31. Isopicnic are the line of constant

Height

Insolation

Geopotential heights

Density

#32. 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

12 hr

18 to 24 hr

#33. . 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

#34. The upper air report from an a/c other than weather reconnaissance a/c has the identification code as

WINTEM

VOLMET

RAWIN

CODAR

#35. 'TAF AMD' covers validity period

The remaining validity period of original TAF

half the validity period of the TAF

the validity starting 2 hr prior to the end period of original TAF

full validity period of the TAF

#36. RVR is a measure of

Atmospheric transsmissivity and background illumination

Atmospheric transparency, intensity of R/W lights and background illumination

Intensity of background illumination

Atmospheric transsmissivity, intensity of R/W lights

#37. SPECI is issued when the visibility changes from

800 to 1500 m

8 km to 6 km

300 m to 400 m

300 m to 150 m

#38. During pre - monsoon the pressure gradient in the S parts of East coast of India is from

N to S along the coast

S to N along the coast

E to W across the coast

W to E across the coast

#39. During SW monsoon the wind at FL400 over Bangaluru is generally

Strong Ely

Strong Wly

Fluctuates between Ely and Wly

Weak Sly

#40. The lapse rate of temperature in a low level inversion is

Positive

negative

insignificant

6.5°C

#41. Which of the following Indian month corresponds to Rainy season/Varsha Ritu

Kwar

Kartic

Magha

Shravana Bhadrapad

#42. The Code Name for an aviation forecast in figure code for a specific area is

ROFOR

ARFOR

TAFOR

GAMET

#43. SIGMET message is

Occurring or expected, enroute weather, which may affect safety of the air operation

Aerodrome forecast in plain language

Special Reports to local ATC unit and concerned operators

Trend type of landing forecast passed to operators

#44. Which of the following Indian month corresponds to Winter/Shishira Ritu

Kwar

Pausha

Magha and Phalguna

Shravana

#45. The variable surface wind speed refers to

<03 KT

04 KT or less

> 02 KT

Calm

#46. Which of the following Indian month corresponds to Sharad Ritu ( Post monsoon)

Jyeshtha

Asauj and Kartika

Phalguna

Shravana

#47. TAF VECC 2203000 2400KT 3000FU SCT030 BECMG 0406 6000 SCT030 BKN100 TEMPO 0708 2000 TSRA SCT20CB OVC080= The above TAF forecasts TS and RA between

0400 and 0600 UTC

0400 and 0600 IST

0700 and 0800 UTC

0700 and 0800 IST

#48. The hailstones occur from

both warm and cold clouds

cold clouds only

warm clouds only

NS clouds

#49. SPECI is issued when the height of base of the lowest cloud layer > 5/8 changes to or passes

500m, 300m, 150m, 50m, 25m

450m, 350m, 150m, 50m, 30m

400m, 300m, 150m, 90m, 30m

450m, 300m, 150m, 60m, 30m

#50. Fog is produced in Fronts by

evaporation and precipitation

frequent Rain

adiabatic cooling

freezing Rain

#51. Over the earth deserts are located in the regions of

Equatorial trough

Subtropical high

Polar Front

ITCZ

#52. The air can hold more moisture at MSL over the

Temperate latitudes

20° Latitude

Equator

Poles

#53. with altitude in an isothermal atmosphere the density of the air

does not change

increases with height

first decrease and then decrease

decreases

#54. The Fronts associated with WDs over NW India in winters are mostly

Warm Occlusion

Cold Occlusion

Cold Fronts

Warm Fronts

#55. In a Cold Occlusion the

Cold air of Cold Front is not the coldest

Cold air of Cold Front is the coldest

Cold air of Warm Front is the coldest

Cold air of Warm Front is warmer than that of Cold Front

#56. A day is called Rainy Day when the amount of Rainfall in a day is

7.5 mm or more

10 mm or more

2.5 mm or more

at least 1.0 mm

#57. A cold front is defined as the

advancing cold airmass undercutting the warm airmass

warm airmass over riding the cold airmass

retreating cold pool of air

leading cold gust front

#58. In a METAR the third layer of clouds is reported when amount is

3/8 or more SCT, BKN or OVC

5/8 or less SCT, BKN

5/8 or more BKN or OVC

3/8 or more FEW, SCT

#59. SPECI is issued for RVR when it changes or passes

150m

200m

400m

900m

#60. Above which datum the cloud base is reported at airports?

above mean sea level

above the aerodrome level

above standard pressure level

above pressure level in ISA

#61. For International Flight documentation, the following data is provided

SIGWX charts between FL 250 and FL 600

SIGWX charts between FL 250 and FL 630 and forecast 250 hPa wind and Temp data

SIGWX charts and upper wind and temperature charts

WAFC generated SIGWX forecast chart only

#62. When visibility is 800 m to 5000 m, in a METAR it is reported in steps of

100 m

200 m

500 m

1000 m

#63. The Polar Front is

Continuous

Not continuous

A transition Zone between Polar and Arctic Westerlies

Boundary between Arctic and Polar Air masses

#64. Most of the weather occurring in India is due to

Fronts

Cyclones

TS

Monsoon Trough

#65. The Doppler Weather Radar works on the principles of

Frequency amplification

Change in frequency of return echo

Comparison of drop sizes

Wavelength modification

#66. Flight forecast in "Chart from of Documentation" supplied in India consists of

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

SIGWX chart and prognostic charts for 300, 250 and 200 hPa

#67. SIGMET message contains weather information which is

Actual and not a forecast

Forecast only

Both actual and forecast

Actual only

#68. Veering of geostrophic wind at a station with height indicates

Warm air advection

Cold air advection

Subsidence of cold air

Convection of warm air

#69. The wind Bora is a

warm Anabatic wind

cold Katabatic wind

violent Wly wind

light maritime Ely wind

#70. Will a SPECI be issued when the mean speed has changed by

< 09 kt

10 kt or more

less than 10 kt

> 08 kt

#71. Highest annual rainfall over the earth occurs the regions?

Temperate regions

Tropical regions

Polar regions

equatorial regions

#72. The most hazardous area for aviation in a cyclone is

about 400 km from eye

eye of the cyclone

wall cloud around the eye

all over the cyclone

#73. The ITCZ

is a region of calm winds and layer type of clouds

affects only N hemisphere in winters

usually lies along the Equatorial Trough

affects S hemisphere in monsoon

#74. The strong Wly winds which blow in both the hemispheres between 35° and 60° Lat are called

Roaring Forties

Trades

Jetstreams

Polar Wly

#75. Cold core low pressure system

intensifies with height

weakness with height

does not change with height

veers with height

Dgca Question Bank For Pilots

Results

#1. The main cause of occurrence of weather over the earth surface is

#2. Thermal lows are generally located over

#3. The main cause of ground inversion is

#4. Above the friction layer winds mostly blow parallel to isobars due to balance of

#5. Wind at 1 km height is 320/20 kt whereas surface wind is 260/05 kt because of

#6. The amount of water vapour which air can hold depends on

#7. In general circulation over the globe the equatorial low pressure belt is at the junction of which cells ?

#8. The dew point temperature

#9. What controls the movement of most TS ?

#10. Isohyets are the line of equal

#11. How much in advance of departure a pilot must notify the Aeronautical Met Station (AMS) requiring Met Forecast for a national flight ?

#12. An a/c cruising at FL500 in July from Chennai to Trivandrum will generally experience

#13. 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

#14. Which of the following Indian month corresponds to Grishm Ritu

#15. Due to Coriolis force an Ely wind blowing over the equator will

#16. The surface wind at coastal stations on west coast of India during late night/early morning in pre - monsoon season is

#17. Convective clouds develop at a place when the atmosphere is

#18. In a SPECI report the QNH 1005.8 hPa is reported as

#19. Stability of atmosphere is determined by

#20. The characteristics features, good visibility and turbulence, are of

#21. Extreme turbulence in a TS can be assessed from

#22. Jet streams are strongest when temperature gradient are greatest

#23. While planning to land during TS, which is the most expected serious aviation hazard

#24. In an arid area the cloud which is capable of causing Dust Storm is

#25. If after the issue of a SPECI, conditions continue to be below the prescribed limit then the next routine report will be a

#26. Fronts are characteristics of

#27. In India in a VOLMET broadcast

#28. In a SPECI the lowest layer of clouds, regardless of amount, is reported as

#29. The atmospheric pressure at an aerodrome is equal to the MSL pressure then

#30. An a/c at FL180 in July from Kolkata to Mumbai will generally experience

#31. Isopicnic are the line of constant

#32. 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

#33. . 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

#34. The upper air report from an a/c other than weather reconnaissance a/c has the identification code as

#35. 'TAF AMD' covers validity period

#36. RVR is a measure of

#37. SPECI is issued when the visibility changes from

#38. During pre - monsoon the pressure gradient in the S parts of East coast of India is from

#39. During SW monsoon the wind at FL400 over Bangaluru is generally

#40. The lapse rate of temperature in a low level inversion is

#41. Which of the following Indian month corresponds to Rainy season/Varsha Ritu

#42. The Code Name for an aviation forecast in figure code for a specific area is

#43. SIGMET message is

#44. Which of the following Indian month corresponds to Winter/Shishira Ritu

#45. The variable surface wind speed refers to

#46. Which of the following Indian month corresponds to Sharad Ritu ( Post monsoon)

#47. TAF VECC 2203000 2400KT 3000FU SCT030 BECMG 0406 6000 SCT030 BKN100 TEMPO 0708 2000 TSRA SCT20CB OVC080= The above TAF forecasts TS and RA between

#48. The hailstones occur from

#49. SPECI is issued when the height of base of the lowest cloud layer > 5/8 changes to or passes

#50. Fog is produced in Fronts by

#51. Over the earth deserts are located in the regions of

#52. The air can hold more moisture at MSL over the

#53. with altitude in an isothermal atmosphere the density of the air

#54. The Fronts associated with WDs over NW India in winters are mostly

#55. In a Cold Occlusion the

#56. A day is called Rainy Day when the amount of Rainfall in a day is

#57. A cold front is defined as the

#58. In a METAR the third layer of clouds is reported when amount is

#59. SPECI is issued for RVR when it changes or passes

#60. Above which datum the cloud base is reported at airports?

#61. For International Flight documentation, the following data is provided

#62. When visibility is 800 m to 5000 m, in a METAR it is reported in steps of

#63. The Polar Front is

#64. Most of the weather occurring in India is due to

#65. The Doppler Weather Radar works on the principles of

#66. Flight forecast in "Chart from of Documentation" supplied in India consists of

#67. SIGMET message contains weather information which is

#68. Veering of geostrophic wind at a station with height indicates

#69. The wind Bora is a

#70. Will a SPECI be issued when the mean speed has changed by

#71. Highest annual rainfall over the earth occurs the regions?

#72. The most hazardous area for aviation in a cyclone is

#73. The ITCZ

#74. The strong Wly winds which blow in both the hemispheres between 35° and 60° Lat are called

#75. Cold core low pressure system