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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Human Performance and Limitations > Which statement about altitude hypoxia when breathing ambient air is correct?

303 - ATPL Question Bank in English - Which statement about altitude hypoxia when breathing ambient air is correct?

Question 303 - Human Performance and Limitations - ATPL - Airline Transport Pilot Licence

Its effects always begin only between 3,000 and 5,000 m.

It cannot affect any healthy person below 5,000 m.

Its effects always begin only between 5,000 and 7,000 m.

There is no universally safe threshold: susceptibility varies, and night vision may deteriorate at altitudes below 3,000 m.

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