Where do oxygen masks deploy from during depressurisation?

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Prepare for the Generic Inflight Emergencies Exam. Test your knowledge with flashcards and multiple choice questions, complete with hints and explanations. Ace your exam and ensure you're ready for any in-flight emergency situation!

Multiple Choice

Where do oxygen masks deploy from during depressurisation?

Explanation:
Oxygen masks for passengers are stored in the Passenger Service Unit above each seat. When depressurization occurs, the PSU doors release and the masks drop down for passengers to grab and put on. The oxygen is supplied by chemical generators activated when the mask is pulled, typically providing several minutes of breathable air to allow the aircraft to descend to a safe altitude. The cockpit has its own separate oxygen supply, but the passenger masks come from the PSU, not from an overhead bin or under-seat pocket.

Oxygen masks for passengers are stored in the Passenger Service Unit above each seat. When depressurization occurs, the PSU doors release and the masks drop down for passengers to grab and put on. The oxygen is supplied by chemical generators activated when the mask is pulled, typically providing several minutes of breathable air to allow the aircraft to descend to a safe altitude. The cockpit has its own separate oxygen supply, but the passenger masks come from the PSU, not from an overhead bin or under-seat pocket.

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