Communication and distressQuestion 374 of 566

Which event calls for a MAYDAY call?

  1. Fire on board
  2. A lost navigation light
  3. A minor injury
  4. A drifting boat that is safe
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Correct answer: Fire on board

A fire puts people in immediate danger, so it needs a Mayday call. The other events are less urgent.

Source: Safe Boating Guide (TP 511E, 2026), Table 13: Common marine radio terms, page 51

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Questions last reviewed: 18 October 2026