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Aircraft systems and instrumentsQuestion 586 of 934

What must the pilot do with the throttle as altitude increases, to keep the same rpm?

  1. Open the throttle further
  2. Close the throttle further
  3. Leave the throttle in the same place
  4. Lean the mixture only
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Correct answer: Open the throttle further

As altitude is increased, the throttle must be opened further to indicate the same rpm as at a lower altitude.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 7: Aircraft Systems — Propeller — Fixed-Pitch Propeller, page 166

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026