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Navigation lights and shapesQuestion 87 of 352

A power boat tows another vessel astern. The tow is 150 meters long. How many masthead lights does the towing boat show in a vertical line?

  1. One
  2. Three
  3. Four
  4. Two
Show answer

Correct answer: Two

A short tow means two masthead lights. A tow over 200 meters means three.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 83: Inland Navigation Rules, § 83.24 Towing and pushing (Rule 24)

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Questions last reviewed: 18 October 2026