Question 374Rules of the Road90% to pass
INLAND ONLY A power-driven vessel, when leaving a dock or berth, must sound what signal?
AI Explanation
The correct answer is A) A prolonged blast.
According to the United States Coast Guard regulations, a power-driven vessel leaving a dock or berth in inland waters must sound a prolonged blast (4-6 seconds) on the vessel's whistle or horn to indicate its intention to depart. This signal alerts other vessels in the area that the vessel is about to get underway.
The other options are incorrect because: B) A long blast is not the required signal, C) No signal is not required, and D) Three short blasts is the incorrect signal for a vessel departing a dock or berth.
Related Questions
#372 INLAND ONLY What is the required whistle signal for a power-driven vessel leaving a dock or berth? #373 INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel and leave her on your starboard side. What would be your FIRST whistle signal? #375 INLAND ONLY What signal is a power-driven vessel, when leaving a dock or berth, required to sound? #376 INLAND ONLY You are overtaking another power-driven vessel and sound a whistle signal indicating that you intend to pass the vessel along her starboard side. If the other vessel answers your signal with five short and rapid blasts, what action should you take? #377 INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel and leave her on your starboard side. What should be your first whistle signal?