Question 959 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND You are underway in fog and hear one short, one prolonged, and one short blast in succession. What is the meaning of this signal?

A A vessel is in distress and needs assistance.
B A vessel is towing.
C A vessel is fishing, hauling nets.
D A vessel is at anchor, warning of her position.
AI Explanation

The correct answer is D) A vessel is at anchor, warning of her position. The signal of one short, one prolonged, and one short blast in succession is the signal given by a vessel at anchor to indicate her position and warn other vessels in the area. This signal is prescribed in the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, which govern the navigation and safety of vessels. The other options are incorrect because they do not match the prescribed signal for a vessel at anchor. A vessel in distress would use a different sound signal, a vessel towing would use a different signal, and a vessel fishing or hauling nets would not use this particular sequence of blasts.

Related Questions
Q@q.QuestionNumber:INTERNATIONAL ONLY Two power-driven vessels are meeting. What would a two blast ... Q@q.QuestionNumber:BOTH INTERNATIONAL & INLAND You see the display of lights shown in illustration ... Q@q.QuestionNumber:BOTH INTERNATIONAL & INLAND Which shape shall a 22-meter sailing vessel exhibit ... Q@q.QuestionNumber:BOTH INTERNATIONAL & INLAND When do the Rules state that risk of collision shall... Q@q.QuestionNumber:INLAND ONLY Two power-driven vessels are meeting in a narrow channel on the Grea...

Ready to test your knowledge?

Take a Rules of the Road Practice Exam
Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG Navigation Center
← Previous Question All Questions Next Question →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App