Aircraft systems and instrumentsQuestion 632 of 934

How can a pilot lower a high engine temperature in an airplane without cowl flaps?

  1. Decrease the airspeed and increase the power
  2. Increase the airspeed and reduce the power
  3. Lean the mixture and climb steeply
  4. Close the cowl openings
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Correct answer: Increase the airspeed and reduce the power

High engine temperatures can be decreased by increasing the airspeed and/or reducing the power.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 7: Aircraft Systems — Engine Cooling Systems, page 178

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026