Safety equipmentQuestion 196 of 566

What is the smallest opening a bailer may have?

  1. 3 cm across
  2. 9 cm across
  3. 5 cm across
  4. 15 cm across
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Correct answer: 9 cm across

The opening must be 9 cm (3.5 inches) or more.

Source: Safe Boating Guide (TP 511E, 2026), Bailers and manual bilge pumps, page 26

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Questions last reviewed: 18 October 2026