Question 542 Rules of the Road

The correct answer is D) All of the above. Under the International and Inland Navigation Rules (Rules of the Road), a "power-driven vessel" is defined as any vessel propelled by machinery. This includes a canoe with a small outboard motor (option A), an auxiliary sailing vessel using its engine (option B), and a trawler on its way to the fishing grounds (option C). All of these craft, when using their mechanical propulsion, are considered power-driven vessels and must follow the applicable navigation rules for power-driven vessels. The other options are incorrect because a vessel is considered a "power-driven vessel" regardless of its size, purpose, or the reason it is using its mechanical propulsion. The key factor is the use of machinery for propulsion, which applies to all the examples provided.