Question 41 Rules of the Road

The correct answer is B) Two white lights in a vertical line. This signal is used to indicate that a vessel is engaged in trawling, which involves dragging fishing nets through the water, in close proximity to other fishing vessels. The two white lights in a vertical line are a specific navigation light configuration required by the International Regulations for Preventing Collisions at Sea (COLREGS) for vessels engaged in trawling. The other options are incorrect because they do not match the COLREGS requirements for the navigation lights of a trawling vessel. Option A (two fixed yellow lights) is the signal for a vessel engaged in fishing other than trawling, while options C (red over white) and D (all of the above) do not correspond to the proper trawling signal.