Question 698 Rules of the Road

The correct answer is B) a vessel approaching head-on. The display of lights shown in illustration D071RR indicates that the vessel is approaching head-on, as per the International and Inland Navigation Rules. The two all-round white lights displayed vertically signify that the vessel is underway and meeting another vessel head-on, requiring both vessels to take early and substantial action to avoid a collision. The other options are incorrect because they do not match the light configuration shown in the illustration. A vessel dredging would display different lights, a vessel fishing with nets extending more than 150 meters would display different lights, and a vessel trawling would also display a different set of lights.