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Aircraft systems and instrumentsQuestion 504 of 934

When is dynamic pressure present?

  1. Always, even when the aircraft is parked in calm air
  2. Only at altitudes above 10,000 feet
  3. Only while the engine is running
  4. Only when the aircraft moves relative to the air
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Correct answer: Only when the aircraft moves relative to the air

Static pressure is always present. Wind also generates dynamic pressure.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 8: Flight Instruments — Pitot-Static Flight Instruments — Impact Pressure Chamber and Lines, page 204

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026