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Aircraft General Knowledgemedium#357

Flight crew oxygen masks on transport aircraft are typically:

A

Continuous-flow diluter-demand or pressure-demand type

Correct
B

Chemical generators like passenger masks

C

Simple drop-down masks

D

Portable walk-around bottles only

Explanation

Crew masks are diluter-demand or pressure-demand, providing 100% oxygen under pressure at high altitudes for immediate donning.

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