Question 843 Rules of the Road

The correct answer is A) one masthead light at night. According to the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules, a vessel engaged in trawling, which includes fishing with trawl nets or other fishing gear that restricts maneuverability, is required to display one masthead light at night, regardless of the vessel's length. This is specified in Rule 26(c) of the COLREGS and the corresponding Inland Navigation Rule. The other options are incorrect because: B) a red light over a white light in a vertical line is the proper lighting configuration for a vessel not under command, C) a conical shape, apex downwards is the daytime shape signal for a vessel engaged in fishing, not trawling, and D) two masthead lights at night is the requirement for a vessel more than 50 meters in length, not a 60-meter trawling vessel.