Question 523 Rules of the Road

90% to pass

BOTH INTERNATIONAL & INLAND The stern light shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

A 22.5°
B 67.5°
C 112.5°
D 135.0°
AI Explanation

The correct answer is B) 67.5°. According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, the stern light must show from dead astern to 67.5° on each side of the vessel. This ensures that the stern light is visible from a wide arc around the stern, allowing other vessels to determine the orientation of the ship. The other options are incorrect because A) 22.5° is too narrow, C) 112.5° is too wide, and D) 135.0° is also too wide for the required visibility of the stern light.

Related Questions
Q116:BOTH INTERNATIONAL & INLAND The Rules make which statement about a seaplane? ... Q945:BOTH INTERNATIONAL & INLAND A 95 meter vessel aground is required to sounds whic... Q66:INLAND ONLY You are overtaking another power-driven vessel in a narrow channel, ... Q590:BOTH INTERNATIONAL & INLAND Which vessel would turn off its sidelights? Q974:BOTH INTERNATIONAL & INLAND Which signal shall a vessel towing in fog required t...

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