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Home > Exam Questions > ATPL - Airline Transport Pilot license > Aircraft General Knowledge - Airframe, Systems, Powerplant > The built-in passenger oxygen system be activated by:

394 - ATPL - The built-in passenger oxygen system be activated by:

Question 394 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Opening the oxygen-bottle valves.

Switching the diluter demand regulator ON.

Switching the diluter demand regulator and the passenger oxygen ON.

Switching the passenger oxygen on.

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