Question 439Rules of the Road90% to pass
INTERNATIONAL ONLY You have sighted three red lights in a vertical line on another vessel dead ahead at night. Which vessel would display these lights?
AI Explanation
You are correct, the answer is A) A vessel constrained by her draft.
The reason this is the correct answer is that according to the International Regulations for Preventing Collisions at Sea (COLREGS), a vessel constrained by her draft is required to display three all-round red lights in a vertical line at night to indicate her status.
The other answer choices are incorrect because they do not correspond to the lighting requirement for a vessel constrained by draft. A vessel aground, a vessel dredging, or a vessel moored over a wreck would have different lighting configurations.
Related Questions
#437 INTERNATIONAL ONLY If a vessel displays three all-round red lights in a vertical line at night, during the day which shape(s) may she show? #438 INTERNATIONAL ONLY Which lights shall a vessel that is constrained by her draft, display, in a vertical line to indicate her condition? #440 INTERNATIONAL ONLY In addition to her running lights, a vessel constrained by her draft while underway shall carry which lights in a vertical line? #441 INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line? #442 INTERNATIONAL ONLY A vessel constrained by her draft may display which lights?