Recreational Vehicle (RV) Technician Practice Test

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A 10-3 non-metallic sheathed cable consists of which of the following?

  1. One hot, one neutral, and one ground

  2. Two hots, one neutral, and one ground

  3. Two hots and one neutral only

  4. One hot, one neutral, and two grounds

The correct answer is: Two hots, one neutral, and one ground

A 10-3 non-metallic sheathed cable consists of two hot wires, one neutral wire, and one ground wire. This type of wiring is commonly used for circuits that require two separate hot conductors, often to supply a 240-volt circuit. It provides enhanced capacity, allowing for the distribution of more electrical load, while the ground wire serves as a safety feature to protect against electrical faults. In a typical scenario, the two hot wires are designated for providing power, the neutral is used for returning the current, and the ground is a safety path that helps prevent electric shock. While other options may contain some elements related to wiring configurations, they do not accurately describe the specific composition of a 10-3 non-metallic sheathed cable, which is structured to provide distinct electrical functionality for its intended applications.

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