Red Seal Electrician Practice
Wiring and componentsQuestion 362 of 1506

In a single wire system on a vehicle or equipment, what completes the return path?

  1. A second insulated wire
  2. A neutral bus
  3. The chassis or frame
  4. The fuse
Show answer

Correct answer: The chassis or frame

Wire is used only on the insulated side. The metal body is the return.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 2.1: Basic Electrical Circuits

Practice wiring and components

Questions last reviewed: 18 October 2026