Coast Guard Exams
Question 406Rules of the Road90% to pass

INTERNATIONAL ONLY You are underway in a narrow channel, and you are being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating his intention to pass your vessel on your starboard side, you signal your agreement by sounding which signal?

AI Explanation
The correct answer is D) One prolonged, one short, one prolonged, and one short blast. This signal is used to indicate your agreement with the overtaking vessel's intention to pass on your starboard side, as per Rule 34(c) of the International Regulations for Preventing Collisions at Sea (COLREGS). The overtaking vessel has already sounded the proper signal to indicate its intention, and you are responding with the appropriate acknowledgment signal. The other options are incorrect because they do not match the specific signal prescribed by the COLREGS for this situation. A and B are different sound signals used for different purposes, while C does not include the full sequence of one prolonged, one short, one prolonged, and one short blast.

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