weather theoryFAA-published question bank (Private Pilot, 2008)
What are characteristics of a moist, unstable air mass?
A
Cumuliform clouds and showery precipitation.✓ Correct Answer
B
Poor visibility and smooth air.
C
Stratiform clouds and showery precipitation.
Explanation
PHAK Chapter 12 lists cumuliform clouds, showery precipitation, turbulence and good visibility as characteristics of moist, unstable air. Stratiform clouds, smooth air, steady precipitation and poor visibility characterize stable air.
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