Question 429 Rules of the Road

90% to pass

INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside will show sidelights, a stern light, and which additional light(s)?

A A single white light forward
B Two masthead lights in a vertical line
C Two yellow masthead lights in a vertical line
D An all-round red light where it can best be seen
AI Explanation

The correct answer is B) Two masthead lights in a vertical line. The International Regulations for Preventing Collisions at Sea (COLREGS) state that a power-driven vessel pushing ahead or towing alongside must show sidelights, a stern light, and two masthead lights in a vertical line. This is specified in Rule 23(a) of the COLREGS. The other answer choices are incorrect because: A) a single white light forward is not the correct configuration, C) two yellow masthead lights is not the requirement, and D) an all-round red light is not the correct light for this type of vessel.

Related Questions
Q692:BOTH INTERNATIONAL & INLAND The lights displayed in illustration D044RR below wo... Q347:INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wis... Q901:BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel, less ... Q885:BOTH INTERNATIONAL & INLAND You are on vessel "A" as shown in illustration D032R... Q857:BOTH INTERNATIONAL & INLAND At night, which light(s) is/are required to be shown...

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 →

Pass Your Coast Guard Licensing Exams!

Study offline, track your progress, and simulate real exams with the Coast Guard Exams app

Download on App Store Get it on Google Play Download for Mac