NIVELES RNG MRO B787-2026 ATA 35

The crew oxygen subsystem uses________to supply oxygen at correct pressure. a) single-use pressurized cylinders. b) gaseous oxygen source. c) liquid oxygen cylinders. d) oxygen concentrators.

The passenger oxygen subsystem delivers oxygen in pulses________ from . a) overhead storage compartments. b) oxygen masks. c) portable oxygen tanks. d) oxygen concentrators.

How does the portable oxygen subsystem supply oxygen?. a) continuous flow. b) pulsed delivery. c) liquid oxygen. d) concentrators.

Which components are part of the passenger oxygen system?. a) cylinders, masks, PSU doors, oxygen control unit. b) emergency masks only. c) oxygen concentrators. d) high-pressure regulators.

What triggers oxygen flow in the passenger oxygen system?. a) cabin altitude reaching 14,500 ft. b) manual crew activation. c) passenger manual activation. d) mask removal.

. How does the oxygen system ensure oxygen supply?. a) automatic release at altitude. b) continuous flow. c) intermittent pulses. d) manual release.

How does the passenger oxygen system regulate oxygen flow?. a) pulse per breath. b) continuous flow. c) manual regulation. d) pressure sensing only.

What is the function of the PASS OXYGEN switch on the P5 panel?. a) activate passenger oxygen. b) control cabin air. c) deploy landing gear. d) activate emergency lights.

Where is the manual control for the passenger oxygen system located?. a) on the flight deck. b) passenger cabin. c) galley area. d) lavatories.