Question id 44 - IFR Communications - ATPL - Airline Transport Pilot license

The atmospheric pressure at aerodrome elevation (or at runway threshold)
The atmospheric pressure measured at the aerodrome reference point (ARP)
The altimeter sub-scale setting to obtain elevation when on the ground
The atmospheric pressure referred to the highest obstacle located on the surface of an aerodrome

Training tests and timed exam simulations ATPL - Airline Transport Pilot license