flight instrumentsFAA-published sample question (IRH, Aug 2021)
You are preflighting for an IFR flight and set in the current altimeter setting, it should be not more than
A
±150 feet from your referenced level.
B
±100 feet from your referenced level.
C
±75 feet from your referenced level.✓ Correct Answer
Explanation
The AIM and Instrument Flying Handbook say that, with the current altimeter setting, the altimeter should read within 75 feet of the known field or reference elevation; if the error is greater, the instrument should be checked before IFR flight. 100 and 150 feet are not the accepted tolerance.
Related flight instruments questions
If while in level flight, it becomes necessary to use an alternate source of static pressure vented ...If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed ...An aircraft which is equipped with an Electronic Flight Display (EFD) canIf you need to use an alternate static source during level flight, you can expect to seeBelow 18,000 feet pressure altitude may be obtained by
Keep practising
Study more FAA Instrument Rating questions, or take a timed practice quiz.