Coast Guard Exams
Question 526Rules of the Road90% to pass

BOTH INTERNATIONAL & INLAND An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show?

AI Explanation
The correct answer is B) Three lights in a vertical line, the highest and lowest red and the middle white, and anchor lights. This is the correct answer because the International Regulations for Preventing Collisions at Sea (COLREGS) Rule 27(b)(i) states that a vessel restricted in her ability to maneuver while engaged in an operation for the maintenance of an aid to navigation shall exhibit three all-round lights in a vertical line, the highest and lowest of which shall be red and the middle one white. Additionally, the vessel shall also exhibit the required anchor lights as per COLREGS Rule 30. The other options are incorrect because option A) is missing the anchor lights, option C) is missing the three vertical lights, and option D) is missing the three vertical lights.

Ready to test your knowledge?