Qwissit Aviation

PPL(A) – Private Pilot

Human Performance

12 of 60 questions in the app

Atmosphere and respiration

  1. Approximately what proportion of the air in the lower atmosphere is oxygen? Easy
  2. What is meant by hypoxia? Easy
  3. What is a particularly dangerous feature of hypoxia? Easy
  4. Where does carbon monoxide in the cockpit of a single-engine piston aeroplane usually come from? Easy
  5. What is a common cause of hyperventilation in pilots? Easy

Circulation and acceleration

  1. What happens to the blood under high positive acceleration (for example in a tight steep turn)? Easy

Vision

  1. Which sensory cells of the retina are mainly responsible for vision at night? Easy
  2. Approximately how long does it take for the eyes to fully adapt to darkness? Easy

Atmosphere and respiration

  1. What does Dalton's law, which is important for altitude physiology, describe? Medium
  2. At approximately what altitude is the air pressure in the standard atmosphere about half the sea-level value? Medium

Atmosphere and respiration

  1. Approximately how long does a healthy person sitting still remain usefully conscious after a sudden loss of oxygen at 25 000 ft? Hard
  2. On a winter flight with the cabin heater on, you get a headache and feel drowsy. What do you do? Hard

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