Question 758 Rules of the Road

The correct answer is B) A power-driven vessel. According to the International Regulations for Preventing Collisions at Sea (COLREGS), a power-driven vessel underway and not making way (i.e., drifting or dead in the water) must exhibit sidelights, even though it is not actively moving. This is specified in Rule 23(a) of the COLREGS. The other options are incorrect because: A) Fishing vessels have different light requirements, C) Dredging vessels are considered "vessels restricted in their ability to maneuver" with different light requirements, and D) Vessels not under command have different light requirements as well.