Coast Guard Exams
Question 551Rules of the Road90% to pass

BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light used with whistle signals?

AI Explanation
The correct answer is C) Its purpose is to supplement short blasts of the whistle. This is correct because the International Regulations for Preventing Collisions at Sea (COLREGS) state that the use of a light to supplement short blasts of the whistle is optional, not required. The light is intended to draw attention to the whistle signal, but its use is not mandated. Options A and B are incorrect because the COLREGS do not require the light to have the same characteristics as a masthead light, nor is the use of such a light required. Option D is incorrect because not all of the statements are true - the use of the light is optional, not required.

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