Boating Coach US
Sound signalsQuestion 118 of 352

A boat is shorter than 12 meters and has no whistle. What must it have?

  1. Nothing, it is exempt
  2. A bell and a gong
  3. A radio only
  4. Some other way to make an efficient sound signal
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Correct answer: Some other way to make an efficient sound signal

A small boat may use a horn or similar device in place of a whistle.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 83: Inland Navigation Rules, § 83.33 Equipment for sound signals (Rule 33)

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Questions last reviewed: 18 October 2026