Question 546Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND You are underway in fog when you hear the following signal: one short blast, one prolonged blast and one short blast in succession. Which of the following would it be?
AI Explanation
The correct answer is D) A vessel at anchor.
The signal of one short blast, one prolonged blast, and one short blast in succession is the signal given by a vessel at anchor to indicate its presence in conditions of restricted visibility, as specified in the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules.
The other options are incorrect because they do not match the prescribed signal for a vessel at anchor. A power-driven vessel underway would give a different signal, a sailing vessel would not give this signal, and a vessel towing would also have a different sound signal.
Related Questions
#544 BOTH INTERNATIONAL & INLAND Which light(s) is a vessel engaged in fishing, and at anchor required to exhibit? #545 BOTH INTERNATIONAL & INLAND Which lights must a vessel being towed show at night? #547 BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. Which vessel would sound this signal? #548 BOTH INTERNATIONAL & INLAND A vessel transferring cargo while underway is classified by the Rules as a vessel __________. #549 BOTH INTERNATIONAL & INLAND Which vessel is "underway" within the meaning of the Rules?