Question 4877 Deck General

70% to pass

Which single-letter signal, when used by icebreakers on the Great Lakes, may be made by using the ship's whistle?

A I
B M
C E
D None
AI Explanation

The correct answer is B) M. The single-letter signal "M" is the correct answer because it is the signal used by icebreakers on the Great Lakes to indicate that they are breaking ice. According to the U.S. Coast Guard Navigation Rules, International-Inland, Rule 36, the "M" signal may be made by using the ship's whistle. The other options are incorrect because they do not correspond to the specific signal used by icebreakers on the Great Lakes. Option A) "I" is not the correct signal, and options C) "E" and D) "None" are also not the correct answers.

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