FAA Questions/Private Pilot/Question #78
performanceFAA-published question bank (Private Pilot, 2008)

(Refer to figure 8.) Determine the pressure altitude at an airport that is 3,563 feet MSL with an altimeter setting of 29.96.

FAA Figure 8Density altitude chartFAA-CT-8080-2H · Sport, Recreational, Private & Remote Pilot supplement
How to read it: Start at the outside air temperature on the bottom, go up to the pressure-altitude diagonal, then left to read density altitude. The right-hand table converts altimeter setting to pressure altitude.
A

3,527 feet MSL.✓ Correct Answer

B

3,556 feet MSL.

C

3,639 feet MSL.

Explanation

For an altimeter setting of 29.96, interpolating between 0 (29.92) and -73 (30.0) in the Figure 8 table gives about -37 feet. Pressure altitude = 3,563 - 37 = about 3,527 feet. A setting above 29.92 always gives a pressure altitude lower than field elevation, which rules out the other two values.

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