General Navigation USCG Question #291 (Set 10)

A lateral system buoy displaying a quick light __________.

Official USCG Answer & Rule Citation

Correct Answer: Option A — indicates that special caution is required

A quick flashing light (at least 60 flashes per minute) on a lateral buoy is used to alert mariners to areas requiring special caution, such as sharp bends, narrow channels, or obstructions. It serves as a visual warning to increase vigilance and reduce speed when navigating the immediate vicinity.

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