Question 378 Rules of the Road

90% to pass

INLAND ONLY Two power-driven vessels, "A" and "B" , are meeting in a narrow channel as shown in illustration D029RR below. Which statement is TRUE concerning whistle signals between the vessels?

Rules of the Road Question 378 diagram
A Vessel "A" should sound one short blast and vessel "B" should sound two short blasts.
B Both vessels should sound one short blast.
C Both vessels should sound two short blasts.
D Neither vessel should sound any signal as no course change is necessary.
AI Explanation

The correct answer is C) Both vessels should sound two short blasts. This is correct because under the Inland Navigation Rules, when two power-driven vessels are meeting in a narrow channel, both vessels should sound two short blasts to indicate that they intend to pass port-to-port. This is the standard whistle signal for a meeting situation in a narrow channel, where a change of course and/or speed may be necessary to safely pass. The other answer choices are incorrect because option A would be the wrong signal, option B would not be sufficient, and option D would be incorrect as some whistle signal is required in this meeting situation.

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