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Question 1 of 10
Atm
medium
What is the tropopause and how does it affect cruise operations for transport jets?
A
The boundary between the troposphere and stratosphere (approximately 36,000 feet at mid-latitudes) where temperature stabilizes; jets cruise near or above it for optimal performance
B
The altitude above which pressurization is no longer effective
C
The altitude at which jet engines reach maximum rated thrust
D
The boundary between controlled and uncontrolled airspace in international operations
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