Question 166Navigation General

70% to pass

You are entering an African port and see ahead of you a red can-shaped buoy. What action should you take?

A Alter course to leave the buoy to starboard
B Alter course to leave the buoy to port
C Pass the buoy well clear on either side
D Pass the buoy close aboard on either side
AI Explanation

The correct answer is B) Alter course to leave the buoy to port. This is because a red can-shaped buoy in the United States is a port-side marker, indicating that the proper action is to pass the buoy to the port (left) side of the vessel. This is in accordance with the International Association of Lighthouse Authorities (IALA) buoyage system, which is the standard for maritime navigation worldwide. The other answer choices are incorrect because A) leaving the buoy to starboard would be the wrong side, C) passing well clear is unnecessary, and D) passing close aboard is not the recommended action for this type of buoy.

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