Question 442 Rules of the Road

90% to pass

INTERNATIONAL ONLY A vessel constrained by her draft may display which lights?

A Three all-round red lights instead of the lights required for a power-driven vessel of her class
B The same lights as a vessel restricted in her ability to maneuver
C The lights for a power-driven vessel which is not under command
D Three all-round red lights in addition to the lights required for a power-driven vessel of her class
AI Explanation

The correct answer is D) Three all-round red lights in addition to the lights required for a power-driven vessel of her class. A vessel constrained by her draft, as per the International Regulations for Preventing Collisions at Sea (COLREGS), is required to display three all-round red lights in addition to the regular navigation lights required for a power-driven vessel of her class. This distinguishes the vessel as being constrained by her draft, which means she has limited maneuverability due to her deep draft. The other options are incorrect because they do not accurately reflect the lighting requirements for a vessel constrained by her draft under the COLREGS.

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