Question 820 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND Which lights is a 15-meter sailing vessel required to show?

A sidelights only
B sidelights, stern light, and a red light over a green light on the mast
C separate sidelights and stern light
D sidelights, and stern light, but they may be in a combined lantern on the mast
AI Explanation

The correct answer is D) sidelights, and stern light, but they may be in a combined lantern on the mast. According to the U.S. Coast Guard's Navigation Rules, a sailing vessel of 12 meters (39.4 feet) or more in length is required to exhibit sidelights (red on the port side, green on the starboard side) and a stern light. These lights may be in a combined lantern mounted on the mast. The other options are incorrect because: A) A 15-meter sailing vessel requires more than just sidelights. B) A 15-meter sailing vessel is not required to show a red over green light on the mast. C) The rules allow for the sidelights and stern light to be in a combined lantern.

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