Rules of the roadQuestion 158 of 352

What must a safe speed let a vessel do?

  1. Keep up with the speed of other traffic
  2. Reach port before it gets dark
  3. Stay below the top speed of the boat
  4. Take effective action to avoid collision and stop in a suitable distance
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Correct answer: Take effective action to avoid collision and stop in a suitable distance

A safe speed lets you act to avoid collision and stop within a suitable distance.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 83: Inland Navigation Rules, § 83.06 Safe speed (Rule 6)

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Questions last reviewed: 18 October 2026