flight instrumentsFAA-published question bank (Private Pilot, 2008)
If an altimeter setting is not available before flight, to which altitude should the pilot adjust the altimeter?
A
The elevation of the nearest airport corrected to mean sea level.
B
The elevation of the departure area.✓ Correct Answer
C
Pressure altitude corrected for nonstandard temperature.
Explanation
14 CFR 91.121(a)(1) says that if no altimeter setting from a station along the route is available, the pilot sets the altimeter to the elevation of the departure airport (or an appropriate setting available before departure). Setting another airport's elevation, or a temperature-corrected pressure altitude, is not the procedure.
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