Question 337Navigation General

70% to pass

A special daymark is a _______________.

A daymark with a yellow stripe on it
B red-and-white octagon
C yellow diamond
D green square
AI Explanation

The correct answer is C) yellow diamond. A special daymark is a yellow diamond-shaped daymark that is used to indicate a special purpose marker or structure. This is defined in the US Coast Guard Navigation Rules and Regulations Handbook. The yellow diamond shape is the standard for special purpose daymarks, distinct from the other standard daymark shapes like red-and-white octagons, green squares, etc. The other answer choices do not match the regulatory definition of a special daymark.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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