Boating Coach
On the waterQuestion 536 of 566

You hear a change in the sound of your exhaust. What might it mean?

  1. Your exhaust system may have a fault
  2. The fuel is too cold
  3. The anchor is dragging
  4. The battery is fully charged
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Correct answer: Your exhaust system may have a fault

A change in exhaust sound is a warning that CO could leak.

Source: Safe Boating Guide (TP 511E, 2026), What You Should Know About Carbon Monoxide, page 67

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Questions last reviewed: 18 October 2026