Setting the altimeter to the QNH setting yields which altitude reading under standard atmospheric conditions?

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Multiple Choice

Setting the altimeter to the QNH setting yields which altitude reading under standard atmospheric conditions?

Explanation:
Setting the altimeter to the local QNH makes the instrument reference mean sea level, so the number shown is your height above sea level. On a standard atmosphere, height above mean sea level equals your true geometric height above the Earth’s surface. Therefore the reading corresponds to true altitude. Temperature or non-standard conditions can introduce discrepancies, but those don’t apply here.

Setting the altimeter to the local QNH makes the instrument reference mean sea level, so the number shown is your height above sea level. On a standard atmosphere, height above mean sea level equals your true geometric height above the Earth’s surface. Therefore the reading corresponds to true altitude. Temperature or non-standard conditions can introduce discrepancies, but those don’t apply here.

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