I develop this document while studying for my CPL/ATPL exams. To accomplish this I studied the Oxford Manual and did the Aviation Exam database. The information is brief and easy to read. I believe it contains all the information you will need to pass your exam. I hope you like it and can use it to...
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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
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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
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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
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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
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