Which altitude is displayed on the altimeter when set to a specific QNH?

Question

PPL(A) English - Private Pilot License (Aircraft) - Communication - Which altitude is displayed on the altimeter when set to a specific QNH?

QuizVDS · Accepted Answer

Altitude in relation to mean sea level

QuizVDS · Answer

Altitude in relation to the 1013.25 hPa datum

QuizVDS · Answer

Altitude in relation to the air pressure at the reference airfiel

QuizVDS · Answer

Altitude in relation to the highest elevation within 10 km

PPL(A) EN: Which altitude is displayed on the altimeter when set to a specific QNH?