Question 255Navigation General

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You sight a spar buoy with the topmark shown in illustration D027NG below. You must take which of the following actions?

Diagram for USCG Navigation General: You sight a spar buoy with the topmark shown in illustration D027NG below. You...
A pass to the east of the buoy
B pass to the south of the buoy
C pass to the north of the buoy
D keep well clear of the buoy and pass on either side
AI Explanation

The correct answer is D) keep well clear of the buoy and pass on either side. The illustration D027NG shows the topmark for a special purpose buoy, which indicates that the buoy marks an obstruction or danger. As per the US Coast Guard regulations, mariners should keep well clear of special purpose buoys and pass on either side to avoid the hazard they mark. Options A, B, and C would involve passing too close to the obstruction, which is not the recommended action.

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