Question 764 Rules of the Road

The correct answer is B) a vessel underway. The lights displayed in illustration D052RR, which consist of a masthead light, sidelights, and a stern light, represent the lighting configuration required for a power-driven vessel underway at night under both the International and Inland Navigation Rules. The other answer choices are incorrect because the lighting configuration does not match the requirements for a vessel dredging (A), a vessel aground (C), or a vessel at anchor (D), which have different light display requirements.