Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testeasyradio-altimeter
The radio (radar) altimeter measures:
A
Altitude above mean sea level
B
Pressure altitude
C
True height above the terrain directly below the aircraft
D
Density altitude
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See where you stand: 5 hard questions, instant score, every answer explained.