aircraft systemsFAA-published question bank (Private Pilot, 2008)
Applying carburetor heat will
A
result in more air going through the carburetor.
B
enrich the fuel/air mixture.✓ Correct Answer
C
not affect the fuel/air mixture.
Explanation
Heated air is less dense, so for the same metered fuel flow there is less air by weight, and applying carburetor heat enriches the fuel/air mixture (PHAK Chapter 7). It does not increase the mass of air through the carburetor.
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