The height indicator uses which altitude setting?

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Study for the O-Strand Mission Computers Test. Engage with flashcards and multiple choice questions, each providing hints and explanations. Ace your exam with confidence!

Multiple Choice

The height indicator uses which altitude setting?

Explanation:
The height indicator shows altitude by converting ambient air pressure into height using a pressure reference. That reference is the primary altitude setting—the main QNH value you set for the aircraft. With the primary setting, the height reading corresponds to altitude above mean sea level and stays consistent with ATC. The secondary and tertiary settings exist for other instruments or backup purposes, but they do not drive the main height readout.

The height indicator shows altitude by converting ambient air pressure into height using a pressure reference. That reference is the primary altitude setting—the main QNH value you set for the aircraft. With the primary setting, the height reading corresponds to altitude above mean sea level and stays consistent with ATC. The secondary and tertiary settings exist for other instruments or backup purposes, but they do not drive the main height readout.

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