Question 945 Rules of the Road

The correct answer is A) A rapid ringing of a bell for 5 seconds, preceded and followed by three separate and distinct strokes on the bell every minute. This is the correct answer because under both the International and Inland Navigation Rules, a vessel aground is required to sound a fog signal consisting of a rapid ringing of a bell for 5 seconds, preceded and followed by three distinct strokes on the bell, repeated every minute. The other options are incorrect because they do not accurately describe the required fog signal for a vessel aground. Option B describes a prolonged whistle blast, option C describes a different bell signal pattern, and option D describes a whistle signal that is not the correct fog signal for a vessel aground.