Question 477 Rules of the Road
90% to passINTERNATIONAL ONLY Which is TRUE for the light which may be used with a vessel's whistle?
A
It is used when the whistle is broken
B
It is used only at night
C
It is used prior to sounding the whistle
D
It is a white light
AI Explanation
The correct answer is D) It is a white light. According to international regulations, the light used with a vessel's whistle must be a white light. This white light is used to attract attention and indicate that the whistle is about to be sounded, regardless of the time of day. It is not limited to use only at night, nor is it specific to situations where the whistle is broken. The other answer choices are incorrect as they do not accurately reflect the international requirements for the type of light to be used with a vessel's whistle.
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