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Home > Exam Questions > ATPL - Airline Transport Pilot license > Human Performance and Limitations > Dry air is a mixture of gases. Their volume percentage is about:

442 - ATPL - Dry air is a mixture of gases. Their volume percentage is about:

Question 442 - Human Performance and Limitations - ATPL - Airline Transport Pilot license

18% oxygen, 80% nitrogen, 2% other gases

21% oxygen,78% nitrogen, 1% other gases

25% oxygen, 74% nitrogen, 1% other gases

19% oxygen, 80% nitrogen, 1% other gases

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