Coast Guard Exams
Question 375Rules of the Road90% to pass

INLAND ONLY What signal is a power-driven vessel, when leaving a dock or berth, required to sound?

AI Explanation
The correct answer is D) one prolonged blast. According to the U.S. Coast Guard regulations, a power-driven vessel that is leaving a dock or berth while operating in inland waters is required to sound one prolonged blast as a signal. This signals to other vessels in the area that the vessel is getting underway. The other answer choices are incorrect because: A) no signal is required is wrong, as the regulations do require a signal. B) four short blasts and C) one long blast are not the correct signals specified in the regulations for this situation.

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