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AerodynamicsQuestion 473 of 934

What is the main reason that a stall occurs?

  1. The critical angle of attack is exceeded
  2. The airspeed drops below cruise speed
  3. The engine loses power in a steep climb
  4. The nose rises above the horizon line
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Correct answer: The critical angle of attack is exceeded

A stall is a rapid decrease in lift caused by the separation of airflow from the wing when the critical AOA is exceeded.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 5: Aerodynamics of Flight — Stalls, page 122

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Questions last reviewed: 18 October 2026