weather theoryFAA-published question bank (Private Pilot, 2008)
What is meant by the term 'dewpoint'?
A
The temperature at which condensation and evaporation are equal.
B
The temperature at which dew will always form.
C
The temperature to which air must be cooled to become saturated.✓ Correct Answer
Explanation
PHAK defines dewpoint as the temperature to which air must be cooled to become saturated with the water vapor it already contains. Dew does not always form at that temperature, and equal condensation and evaporation describes saturation, not the definition of dewpoint.
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