Question 754 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights are required to be shown to fully comply with the Rules?

A A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light
B Two masthead lights forward, a stern light, and a towing light above the stern light
C Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern
D No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light
AI Explanation

The correct answer is A) A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light. This is the correct answer because the International and Inland Navigation Rules require a towing vessel over 50 meters in length to display, in addition to sidelights, a masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light when towing astern and the length of the tow is 100 meters. The other options are incorrect because they do not fully comply with the lighting requirements for a 50-meter vessel towing a 100-meter tow, as specified in the Navigation Rules.

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