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CPL Test Series
Question Bank
Questions for TEMPERATURE
Answer the following questions
Test Mode
Training Mode
1. An inversion is
a decrease of pressure with height
an increase of temperature with height
a decrease of temperature with height
an increase of pressure with height
2. An isothermal layer is a layer of air in which the temperature
increases with height at a constant rate
decreases with height at a constant rate
increases with height
remains constant with height
3. The morning following a clear, calm night when the temperature has dropped to the dew point, is likely to produce
good clear weather
a cold front
radiation fog
haze
4. The temperature at FL 160 is -22°C. What will the temperature be at FL 90 if the ICAO standard lapse rate is applied?
-4°C
0°C
-8°C
+4°C
5. If you are flying at FL 100 in an air mass that is 10°C warmer than a standard atmosphere, what is the outside temperature likely to be?
-15°C
-10°C
+5°C
+15°C
6. The diurnal variation in temperature is largest when the sky is
clear and winds are weak
overcast and winds are weak
overcast and winds are strong
clear and winds are strong
7. The environmental lapse rate in an actual atmosphere
has a fixed value of 1°C/100m
has a fixed value of 2°C/1000 FT
varies with time
has a fixed value of 0.65°C/100m
8. Convective activity over land in mid-latitudes is greatest in
summer during the night and early morning
winter in the afternoon.
summer in the afternoon.
winter during the night and early morning.
9. The diurnal variation in temperature is least when the sky is
overcast and winds are weak
clear and winds are weak
clear and winds are strong
overcast and winds are strong
10. Around Paris on January 3rd at 1800 UTC, the surface temperature, under shelter, is 3°C. The sky is covered by 8 oktas of stratus. QNH is 1033 hPa. If the sky is covered all night, the minimum temperature of the night of January 3rd to January 4th should be
significantly above +3°C.
slightly above +3°C
slightly below +3°C
significantly below 0°C.
11. On a clear sky, continental ground surface, wind calm, the minimum temperature is reached approximately
half an hour before sunrise
at the moment the sun rises
one hour before sunrise
half an hour after sunrise
12. The radiation of the sun heats
the water vapour in the air of the troposphere
the air in the troposphere directly
the air in the troposphere only directly if no clouds are present
the surface of the earth, which heats the air in the troposphere
13. In the International Standard Atmosphere the decrease in temperature with height below 11 km is
0.6°C per 100m
0.65°C per 100m
1°C per 100m
0.5°C per 100m
14. Which of the following is a common cause of ground or surface temperature inversion?
Terrestrial radiation on a clear night with no or very light winds
Warm air being lifted rapidly aloft, in the vicinity of mountainous terrain.
Heating of the air by subsidence
The movement of colder air under warm air, or the movement of warm air over cold air.
15. Several physical processes contribute to atmospheric warming. Which of the following contribute the most?
Solar radiation and conduction.
Convection and condensation.
Absorption and evaporation.
Absorption and vaporization.
16. What is the technical term for an increase in temperature with altitude?
Subsidence
Inversion
Advection
Adiabatic
17. An inversion is a layer of air in which the temperature
remains constant with height
increases with height
increases with height more than 1°C/100m
decreases with height more than 1°C/100m
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