ATPL Human Factors Practice Questions - CASA Airline Transport Pilot Licence (Aeroplane) - Human Factors (AHUF) Exam

What is the primary cause of hypoxic hypoxia at high altitudes?

The binding of carbon monoxide to hemoglobin, blocking oxygen transport. A reduction in blood circulation to brain tissues due to high G-forces. The decrease in the partial pressure of oxygen in the inspired air. The poisoning of cellular respiratory enzymes by toxins such as alcohol.

Correct Answer:

The decrease in the partial pressure of oxygen in the inspired air.

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