Question 3 Rules of the Road

90% to pass

INTERNATIONAL ONLY When vessels are in sight of one another, what does two short blasts from one of the vessels mean?

A "I intend to change course to starboard"
B "I intend to change course to port"
C "I am altering my course to starboard"
D "I am altering my course to port"
AI Explanation

The correct answer is D) "I am altering my course to port". According to the International Regulations for Preventing Collisions at Sea (COLREGS), two short blasts from a vessel indicate that the vessel is altering its course to port. This is a visual and auditory signal to inform other vessels in the vicinity of the changing course, allowing them to take appropriate action to avoid a collision. The other options are incorrect because they do not accurately represent the meaning of two short blasts. Option A and C refer to a course change to starboard, while option B refers to an intended course change, rather than an actual alteration.

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