Deck: Rules of the Road

Question 918 of 1,025

INLAND ONLY Two power-driven vessels are crossing within a half a mile of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. What should Vessel "B" sound?

USCG illustration D042RR for Deck Rules of the Road question 918 — Illustration D042RR

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Comments from mariners who studied this question.

po poopface11 · Feb 28, 2020

why would A making any sound, and why would B reply back with one short blast? I would answer with the danger signal bc something doesnt seem right

Km Kmcoming · Mar 27, 2020

The only thing that makes even close sense to the answer is that the give way vessel A is going to turn signal one short blast to indicate that turning starboard will give the vessel A the chance to avoid collision and go behind B vessel which is the stand on vessel. Colreg rule 15.
I would not have chosen "none of the above" if given that as a choice. The reason is they are going 2 different directions thus crossing and given one blast indicates that vessel A will go on the starboard side of vessel B. I would turn starboard to go behind vessel B but would not have the end goal on going on the starboard side of vessel B. Poorly written question.

Deck: Rules of the Road

INLAND ONLY Two power-driven vessels are crossing within a half a mile of each other as shown in illustration D042RR below. Vessel "A" sounds one short blast on the whistle. What should Vessel "B" sound?

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