Question 137 Rules of the Road

90% to pass

INLAND ONLY What lights will a single vessel being towed alongside show?

A sidelights and a stern light
B a special flashing light, sidelights, and a stern light
C only the outboard sidelight and a stern light
D one all-round white light
AI Explanation

The correct answer is B) a special flashing light, sidelights, and a stern light. This is the correct answer because the International Regulations for Preventing Collisions at Sea (COLREGS) require a single vessel being towed alongside to display a special flashing light in addition to the standard sidelights and stern light. The flashing light helps to indicate the vessel's status as being under tow. The other options are incorrect because they do not fully meet the COLREGS requirements for the lighting configuration of a vessel being towed alongside.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG Navigation Center
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