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Rules of the roadQuestion 167 of 352

What do the Rules say about assumptions based on little information?

  1. Make them quickly to save time
  2. Do not make them, especially from little radar information
  3. Make them only in daylight
  4. Make them only if you have radar
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Correct answer: Do not make them, especially from little radar information

Assumptions from scanty information, especially radar, are not allowed.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 83: Inland Navigation Rules, § 83.07 Risk of collision (Rule 7)

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Questions last reviewed: 18 October 2026