Question 346Navigation General

70% to pass

What daymark has NO lateral significance?

A Red triangle
B Green and white diamond
C Red triangle with a green horizontal stripe
D Green square
AI Explanation

The correct answer is B) Green and white diamond. A green and white diamond daymark has no lateral significance, meaning it does not indicate the left or right side of a channel or waterway. Instead, it is used to mark the center or mid-channel of a waterway. The other options, such as the red triangle (A) or the red triangle with a green horizontal stripe (C), do have lateral significance and indicate the left or right side of a channel. The green square (D) is not a standard daymark used in the US Coast Guard's aids to navigation system.

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