Question 2Navigation General

70% to pass

If your vessel were proceeding up river (ascending), the port side of the channel would be marked according to the U. S. Aids to Navigation System on the Western Rivers by _______________.

A green can buoys
B red nun buoys
C green nun buoys
D red can buoys
AI Explanation

The correct answer is A) green can buoys. In the U.S. Aids to Navigation System on the Western Rivers, the port side of the channel (when proceeding upstream/ascending) is marked by green can buoys. This is in accordance with the lateral buoyage system used on the Western Rivers, where the green buoys indicate the left (port) side of the navigable channel when heading upstream. The other answer options are incorrect because red nun buoys (B) mark the starboard side, green nun buoys (C) are not used on the Western Rivers, and red can buoys (D) would mark the starboard side, not the port side.

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