Question 652Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND You are approaching a vessel dredging during the day and see two balls in a vertical line on the port side of the dredge. What do these shapes indicate?
AI Explanation
The correct answer is C) there is an obstruction on the port side of the dredge.
The two vertical balls on the port side of the dredge indicate the presence of an obstruction on that side, which vessels should avoid. This is in accordance with the International Rules of the Road (COLREGS) and the Inland Navigation Rules, which specify that these shapes signify the presence of an obstruction.
The other answer choices are incorrect because A) the dredge may or may not be moored, B) you should not pass on the port side due to the obstruction, and D) the dredge is not necessarily not under command, it may simply have an obstruction on its port side.
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