Question 95 Rules of the Road

90% to pass

INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in a narrow channel. You wish to overtake her on her starboard side. Which whistle signal should you sound?

A one prolonged and one short blast
B two prolonged blasts followed by one short blast
C at least five short blasts
D one short blast
AI Explanation

The correct answer is D) one short blast. When overtaking another power-driven vessel in a narrow channel, the vessel being overtaken has the right-of-way. To indicate your intention to overtake on the starboard (right) side, you should sound one short blast on your whistle. This signals to the other vessel that you intend to pass on their starboard side. The other options are incorrect because they do not align with the proper whistle signal for this situation under the Inland Navigation Rules.

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