Question 367 Rules of the Road

90% to pass

INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel on her starboard side. What should be your first whistle signal?

A two prolonged blasts followed by one short blast
B one short blast
C two prolonged blasts followed by two short blasts
D two short blasts
AI Explanation

The correct answer is B) one short blast. The reasoning is based on the Inland Navigation Rules, Rule 34 - "Maneuvering and Warning Signals". When overtaking another power-driven vessel in a narrow channel, the overtaking vessel should sound one short blast to indicate their intention to pass on the other vessel's starboard (right) side. The other answer choices are incorrect because: A) two prolonged blasts followed by one short blast is the signal for passing on the port (left) side, C) two prolonged blasts followed by two short blasts is the signal for crossing ahead of the other vessel, and D) two short blasts is the signal for reversing direction.

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