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