Atmosphere

Atmosphere

1.       Lowest layer of atmosphere is

a.    Troposphere   

b.      Tropopause  

c.      Stratosphere

2.       Height of Tropopause at equator is

a.      10-12 km

b.    16-18 km

c.      12-14 km

3.       Height of Tropopause at Poles is

a.      12-14 km

b.      12-13 km

c.    08-10 km

4.       Higher the surface temperature would be the tropopause

a.    Higher

b.      Lower

c.      Same

5.       Height of tropopause

a.      Is constant

b.      Varies with altitude

c.    Varies with Latitude

6.       Above 8 km the lower temperatures are over

a.    Equator

b.      Mid Latitudes

c.      Poles

7.       Atmosphere is heated by

a.      Solar Radiation

b.    Heat from earth surface

c.       

8.       Tropos means

a.    Turning

b.      Under current

c.      Convection

9.       CO2 and H2O are also called ...

a.    Green House Gases

b.      Rare Earth Gases

10.   Troposphere is generally

a.      Stable

b.    Unstable

c.      Neutral

11.   Stratosphere is

a.      Unstable

b.      Neutral

c.    Stable

12.   Tropopause is discontinuous at about

a.      30°lat

b.    40°Iat

c.      60°lat

13.   Most of atmospheric mass is contained in ...

a.    Troposphere

b.      Stratosphere

c.      Heterosphere

14.   Stratosphere extends from Tropopause to

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

16.   Mother of pearl clouds occur in………….

a.      Mesosphere

b.      Thermosphere

c.    Stratosphere

17.   The temperature in ISA at 17 km is ..

a.    -56.5°C

b.      -65.5° C

c.      -35.5° C

18.   By weight, approximate ratio of O2 to N2 in the atmosphere is

a.    1:3

b.      1:4

c.      1:5

19.   By volume, the approximate ratio of O2 to N2 in the atmosphere is

a.      1:3

b.    1:4

c.      1:5

20.   By volume, the proportion CO2 in the atmosphere is

a.      3%

b.      0.3%

c.    0.03%

21.   In ISA, the mean sea level temperature is

a.    15° C

b.      10° C

c.      25°C

22.   Maximum concentration of ozone is at 3 height of

a.      10-15 km

b.    20-25 km

c.      30-35 km

23.   Additional oxygen is needed while flying above

a.      5000 ft

b.      7000 ft

c.    10000 ft

24.   CO2 and H2O keep the atmosphere

a.    Warm

b.      Cold

c.      Have no effect

25.   Noctilucent clouds occur in

a.      Thermosphere

b.    Mesosphere

c.      Stratosphere

26.   Temperature at 2 km is 05 °C what is ISA deviation

a.      -05°C

b.    -02° C

c.      -03°C

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