Question 862 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND By day, you sight a vessel displaying three shapes in a vertical line. The top and bottom shapes are balls, and the middle shape is a diamond. Which vessel are you observing?

A vessel trolling
B mineclearing vessel
C vessel engaged in replenishment at sea
D trawler
AI Explanation

The correct answer is C) vessel engaged in replenishment at sea. The display of three shapes in a vertical line, with the top and bottom shapes being balls and the middle shape being a diamond, is the signal displayed by a vessel engaged in replenishment at sea under both the International and Inland Navigation Rules. The other options are incorrect because they do not match the specific shape configuration described in the question. A vessel trolling would not display this signal, a mineclearing vessel would have different signals, and a trawler would not use this particular signal combination.

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