Question 552Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND What is the minimum fog signal required aboard a vessel between 12 meters and 20 meters in length at anchor?
AI Explanation
The correct answer is B) Any efficient sound signal every two minutes.
According to the regulations for fog signals on vessels between 12 and 20 meters in length under both the International and Inland Navigation Rules, the minimum requirement is to make "any efficient sound signal" at intervals of not more than two minutes. This is specified in Rule 35(d) of both the International and Inland Navigational Rules.
The other answer choices are incorrect because they do not match the regulatory requirement. Option A describes a specific pattern of bell strokes, Option C specifies rapid ringing for 10 seconds every minute, and Option D requires three distinct bell strokes every two minutes, none of which are the correct minimum standard for this size of vessel.
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