Question 773 Rules of the Road

The correct answer is D) A vessel towing barges astern. The lights shown in illustration D077RR depict the navigation lights required for a vessel towing barges astern. This configuration includes a white masthead light, a yellow towing light, and a red and green sidelight. According to the International and Inland Navigation Rules, this lighting arrangement is specifically required for a vessel towing barges from the stern. The other answer choices are incorrect because the displayed lights do not match the requirements for a vessel pushing barges ahead (A), a pipeline (B), or a stationary dredge (C).