Aircraft systems and instrumentsQuestion 633 of 934

What does the oil temperature gauge show about engine temperature?

  1. A direct and immediate indication
  2. No useful information
  3. An indirect and delayed indication
  4. The temperature of the exhaust gas
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Correct answer: An indirect and delayed indication

The cylinder-head temperature gauge shows a direct and immediate cylinder temperature change.

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