Question 708 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND What is the minimum vessel length which must show two white masthead lights, one forward and one aft, when underway at night?

A 100 meters
B 50 meters
C 20 meters
D 7 meters
AI Explanation

The correct answer is A) 100 meters. According to the International Regulations for Preventing Collisions at Sea (COLREGS), a vessel 100 meters or more in length when underway must display two white masthead lights, one forward and one aft. This requirement applies to both international and inland waterways. Vessels less than 100 meters in length are not required to have this specific lighting configuration, which is why options B, C, and D are incorrect.

Related Questions
Q317:INLAND ONLY At night, which lights are required on barges moored in a group form... Q272:BOTH INTERNATIONAL & INLAND Vessels I and II are underway as shown in illustrati... Q881:BOTH INTERNATIONAL & INLAND A vessel 25 meters in length must have which sound s... Q745:BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a 75meter power-d... Q637:BOTH INTERNATIONAL & INLAND How long is the duration of a prolonged blast of the...

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