Coast Guard Exams
Question 509Rules of the Road90% to pass

BOTH INTERNATIONAL & INLAND A vessel displaying the shape shown in illustration D010RR below is which of the following?

Diagram for question 509
AI Explanation
The correct answer is A) has a tow that exceeds 200 meters in length. The shape shown in illustration D010RR is the "not under command" signal, which indicates that a vessel is unable to maneuver as required by the rules and is therefore not under command. Per the international and inland navigation rules, a vessel displaying this signal is required to indicate that it has a tow exceeding 200 meters in length. The other answer choices are incorrect because they do not accurately represent the meaning of the "not under command" signal.

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