SACAA CPL Human Performance Practice Questions - SACAA Commercial Pilot Licence (Aeroplane) Human Performance & Limitations Examination Exam

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According to Dalton's Law of Partial Pressures, if atmospheric pressure at 18,000 ft is 506 hPa, what is the partial pressure of oxygen (PO2) in dry ambient air at this altitude?

Approximately 106 hPa Approximately 212 hPa Approximately 50.6 hPa Approximately 380 hPa

Correct Answer:

Approximately 106 hPa

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