Question 360Navigation General

70% to pass

In illustration D045NG below, a green-and-red banded daymark, with the uppermost band green, will have which of the following shapes?

Diagram for USCG Navigation General: In illustration D045NG below, a green-and-red banded daymark, with the...
A A
B B
C C
D D
AI Explanation

The correct answer is A. A green-and-red banded daymark with the uppermost band green will have a triangular shape, as shown in option A. This is based on the U.S. Aids to Navigation System, which specifies that green-and-red banded daymarks with the uppermost band green indicate the shape of an isosceles triangle. The other options, B, C, and D, do not match the shape requirement for this type of daymark and are therefore incorrect.

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