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Aircraft systems and instrumentsQuestion 621 of 934

The pilot selects RIGHT on the ignition switch. What happens?

  1. Only the left magneto is active
  2. Both magnetos are active at half power
  3. Only the right magneto is active
  4. Only the starter circuit is active
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Correct answer: Only the right magneto is active

With RIGHT or LEFT selected, only the associated magneto is activated.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 7: Aircraft Systems — Ignition System, page 175

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026