Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testmediumdoors-windows
Plug-type cabin doors on pressurized aircraft are designed so that:
A
They can be opened at any altitude
B
They open outward in an emergency
C
Internal cabin pressure forces the door into its frame, preventing it from opening in flight
D
They require hydraulic power to open
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See where you stand: 5 hard questions, instant score, every answer explained.