Question 364Navigation General

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A daymark used to indicate the safe water in a channel will have which of the shapes shown in illustration D045NG below?

Diagram for USCG Navigation General: A daymark used to indicate the safe water in a channel will have which of the...
A A
B B
C C
D D
AI Explanation

The correct answer is C. A daymark used to indicate the safe water in a channel will have a cylindrical shape, as shown in illustration D045NG. This is in accordance with the U.S. Aids to Navigation System, which specifies that a cylindrical shape is used for safe water marks. The other options, A, B, and D, represent different shapes that are used for other types of navigational aids, such as lateral or special marks, but not for safe water marks.

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