Question 374Navigation General

70% to pass

Buoys and day beacons exhibiting a yellow triangle or square painted on them are used _______________.

A at particularly hazardous turns of the channel
B where the ICW and other waterways coincide
C in minor harbors where the controlling depth is 10 feet (3 meters) or less
D on isolated stretches of the ICW to mark undredged areas
AI Explanation

The correct answer is B) where the ICW and other waterways coincide. Buoys and day beacons exhibiting a yellow triangle or square are used to mark the junction or intersection of the Intracoastal Waterway (ICW) with other navigable waterways. This allows mariners to easily identify these important transition points between the ICW and other channels or rivers. The other answer choices do not accurately describe the purpose of these distinctive yellow markers.

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