Question 743 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND At night, a power-driven vessel less than 12 meters in length may, instead of the normal navigation lights, show sidelights and one __________.

A flashing white light
B yellow light
C flashing yellow light
D white light
AI Explanation

The correct answer is D) white light. According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, a power-driven vessel less than 12 meters in length may, instead of the normal navigation lights, show sidelights and one white light at or near the stern of the vessel. This white light serves as the all-around/masthead light, and its purpose is to make the vessel visible to other vessels in the vicinity. The other options are incorrect because they do not align with the regulations. A flashing white light, yellow light, or flashing yellow light would not be the proper configuration for a vessel of this size operating at night.

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