Vayudoot Aviation

1. The process which to a large extent determines the vertical distribution of temperature in atmosphere is

Isentropic

Isothermal

Adiabatic

2. SALR at mean sea level is about

5° C/Km

5° F/Km

10° C/Km

3. SALR approaches DALR

at 0° C

at -40° C

at - 15° F

4. If ELR = SALR = DALR the atmosphere is

Stable

Instable

Indifferent

5. Environmental LR can be more than DALR

True

False

6. SALR = 5.5 °C, ELR = 4.5 °C ; atmosphere is

different

stable

unstable

7. Dry air having a temperature of 35° C on surface when forced to rise adiabatically by 1 km would attain a temperature of

25° C

29° C

45° C

8. Surface temp. is 30 °C. Assuming DALR what is the temperature of 2 km

42° C

10° C

18° C

9. DALR = 9.8 °C, ELR = 6.8 °C ; atmosphere is

indifferent

stable

unstable

10. Dry air is unstable when

ELR>DALR

ELR=DALR

ELR<DALR

11. The saturated air is said to be unstable if

SALR<ELR

SALR=ELR

SALR>ELR

12. DALR is approximately

5° C/km

15° C/km

10° C/km

13. Inversion in the atmosphere indicates

Instability

Stability

Neutral

14. DALR means

The rate at which temperature of unsaturated parcel of air falls with height when to ascent adibetically

The rate at which ascending parcel of saturated air cools

The rate at which temp falls with height

15. An Isothermal atmosphere is

Stable

Neutral

Unstable

16. Inversion is common in

Monsoon

Winters

Post Monsoon

17. Rise in temperature with height is

Normal

Inversion

Lapse

18. Inversion is _______ Lapse Rate (LR)

Negative

Neutral

Positive

19. DALR > ELR > SALR

conditionally unstable

potentially stable

latently stable

20. If ELR is less than SALR, the atmosphere is said to be

Conditional unstable

Absolutely unstable

Absolutely stable

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