Question 618 Rules of the Road

The correct answer is C) non-displacement craft. The definition of "vessel" in the Navigation Rules (both International and Inland) includes non-displacement craft, such as hydrofoils, hovercraft, and other vessels that do not rely on displacement to stay afloat. This is because the Navigation Rules are designed to apply to all types of vessels on the water, regardless of their method of propulsion or means of staying afloat. The other options are incorrect because: A) a barge permanently affixed to the shore is not considered a vessel, as it is not mobile; and B) a drilling unit attached to the Outer Continental Shelf is a fixed structure, not a vessel.