Vayudoot Aviation

1. Where is a squall line to be expected?

In front of a cold front occlusion at higher levels.

In front of an active cold front.

Behind a cold front.

At the surface position of a warm front.

2. Inversion in the atmosphere indicates

Instability

Stability

Neutral

3. The occurrence of large deserts near 30N and 30S are due to large scale

convection

subsidence

advection

4. Generally the severest activity of a, heat type, TS is for

2 hrs

30 to 45 min

3 to 4 hr

5. CS in Indian region are less intense because

They have a very short travel over the sea

India is close to Equator

Sea surface temp. are not high

6. What causes wind?

Rotation of the earth

Difference in pressure

Frontal systems

Difference in temperature

7. The hailstones occur from

NS clouds

both warm and cold clouds

cold clouds only

warm clouds only

8. Relative humidity depends on

moisture content and pressure of the air

moisture content and temperature of the air

temperature of the air only

moisture content of the air only

9. The total energy radiated by a black body is proportional to its temperature(T)

T4

T³

T²

10.
Which of the following conditions is most likely to lead to the formation of advection fog ?

Dry cold air moving over a warm surface

Moist cold air moving over a warm surface

Dry warm air moving over a cold surface

Moist warm air moving over a cold surface

11. Wind speed in a tropical severe cyclone is:

48 - 63 kt

17 - 27 kt

27 - 33 kt

12. Rime is formed by freezing of ____ supercooled water droplets on airframe when air is flying through clouds

Small

Large

Medium

13. Hot bodies (like sun) radiate

Short Waves

Both

Long Waves

14. Which constant pressure altitude chart is standard for a 18289 FT pressure level (FL 180) ?

300 hPa

700 hPa

500 hPa

200 hPa

15. In which of these cloud types can icing be virtually ruled out?

CI

NS

SC

CU

16. An aerodrome is at the mean sea level. Its QNH is 1014.0 hPa. Its QFF will be

1014.0 hPa

1013.25

More than QNH

Difficult to tell

17. Rainfall in the tropics is more in the

Afternoon

Night

Morning

18. For mountain waves to form the wind speed for small mountains should be atleast

10 m/s

15 m/s

7 m/s

19. Norwesters normally occur during

Mornings

Nights

Afternoons

20. Average life of a tropical cyclone in India is

6-8 Days

3-4 Days

10 Days

21. Low level wind shear is likely to be greatest

at the condensation level when there is no night radiation

at the top of the friction layer.

at the top of a marked surface-based inversion.

at the condensation level when there is strong surface friction.

22.
Trade winds are most prominent or strongest

Lower troposphere over ocean

Lower troposphere over land

Upper troposphere over sea

Upper troposphere over land

23. Norwesters occur during

Oct-Dec

Mar-May

Jan-Feb

June-Sep

24. The movement of wind in relation to a cyclone is

Ascending and converging

Descending and subsiding

Descending and cooling

Ascending and diverging

25. A part of the sinking air over the subtropical high flows towards the equator, turning west (in the northern hemisphere) due to the Coriolis force. This surface air is called

Roaring forties

Doldrums

Trade winds

26. The validity of Landing Forecast (TREND) is

2 hr

1 hr

3 hr

27. At the top of orographic waves, in mountainous regions, the cloud most likely to be encountered is

cumulus mediocris

altocumulus lenticularis.

cirrostratus

cirrus

28. Advection fog occurs due to ........ air moving over ............ surface over

Dry, wet, land only

Warm & moist air, cold, both land & sea

Moist and cold, warm, land only

29. Lines of constant wind speed drawn on weather charts are called

Isogons

Isotachs

Isobars

30. An aircraft flying in Summer season from Delhi to Kolkata at 10 km will experience

Northerly

Southerly

Westerly

Easterly

31. Rise in temperature with height is

Normal

Lapse

Inversion

32. Flying from Low to High an altimeter would read

constant

Under

Over

33. Flying at right angles to a jet stream with falling pressure you will experience

Wind from right

Increasing head wind

Increasing tail wind

Wind from left

34. Fog occurs in Cold Front

After

Ahead

During

Question Bank

Questions for MET REGULAR SEP 2023