ATPL 040 Human Performance Practice Questions - EASA ATPL Theory - Human Performance And Limitations (040) Exam

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A pilot flying an unpressurised aircraft at 25,000 ft suffers a complete loss of supplemental oxygen. The approximate Time of Useful Consciousness (TUC) at this altitude is:

20 to 30 minutes 3 to 5 minutes 30 to 60 seconds 9 to 12 seconds

Correct Answer:

3 to 5 minutes

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