Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
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Transponder Mode C provides:
A
Aircraft identification only
B
Aircraft identification, altitude, and flight number
C
Aircraft identification and pressure altitude
D
Pressure altitude only
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See where you stand: 5 hard questions, instant score, every answer explained.