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Aircraft operation rulesQuestion 91 of 351

When must you set the altimeter before landing, if the setting is obtainable?

  1. Immediately before starting the descent for landing.
  2. When over the airport boundary.
  3. After landing.
  4. On final approach.
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Correct answer: Immediately before starting the descent for landing.

Set the altimeter immediately before commencing the descent to land.

Source: Canadian Aviation Regulations (SOR/96-433), CAR 602.35(c) Altimeter-setting and Operating Procedures in the Altimeter-setting Region

Practice aircraft operation rules

Questions last reviewed: 18 October 2026