Which of the following describes a power-driven vessel?

A power-driven vessel is defined as any vessel that is propelled by machinery. This classification includes motorboats, jet skis, and any other boats that utilize an engine for movement, regardless of their size or purpose. Understanding this definition is crucial for boating safety and navigation rules, as it helps differentiate between various types of vessels and the regulations that apply to them.

The other options represent different types of vessels or situations. For instance, a vessel that sails without an engine refers to sailing vessels, which rely on wind for propulsion. A vessel that only uses human power describes rowboats and canoes, which require physical effort to navigate. Lastly, a vessel that is anchored or aground does not fall under the category of power-driven vessels since it is not in motion. Recognizing these distinctions is key to safe boating practices and ensuring adherence to maritime regulations.