Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
Free testmediumoxygen-systems
The duration of a passenger chemical oxygen generator is typically:
A
5 minutes
B
12-22 minutes depending on type
C
60 minutes
D
2 hours
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See where you stand: 5 hard questions, instant score, every answer explained.