Oxford, Aviation Meteorology
The Atmosphere: DGCA Aviation Meteorology questions
Altimeters, performance charts and temperature deviations are all measured against the ICAO standard atmosphere. At sea level it gives 15°C and 1013.25 hPa, and it cools by close to 2°C for every 1000 ft until the tropopause at 11 km.
The 24 questions here are largely flight level arithmetic: the temperature at a new level, an ISA deviation in the cruise, where the freezing level sits. Others ask how the tropopause changes with latitude and where standard pressure levels lie. Exam sessions have picked 5 of these.
Stop the lapse rate at the tropopause, because ISA holds temperature constant from 11 km to 20 km. Over the equator the tropopause is higher and colder than over the poles, not warmer.
0 answered·5 free questions·0 right
Question 1 of 5
How does the height of the tropopause normally vary with latitude in the Northern Hemisphere?
Question 2 of 5
What, approximately, is the average height of the tropopause over the Equator?
Question 3 of 5
In the International Standard Atmosphere the decrease in temperature with height below 11 km is:
Question 4 of 5
The 200 hPa pressure altitude level can vary in height. In temperate regions which of the following average heights is applicable?
Question 5 of 5
The temperature at FL110 is -12°C. What will the temperature be at FL140 if the ICAO standard lapse rate is applied?
19 more questions in this chapter
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