Coast Guard Exams
Question 986Deck Safety70% to pass

Symbol number (51

AI Explanation
The correct answer is S. The symbol number 51 refers to the International Code of Signals (ICS), which is a standardized system of signals used for communication between ships and shore stations. In the ICS, the symbol 'S' is used to represent the letter 'S', which is a standard distress signal. The other answer choices (A, B, C, D) do not correspond to any recognized signal in the ICS, and therefore are incorrect.

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