Wiring and componentsQuestion 405 of 1506

Which diagram type is easiest to use when wiring an installation?

  1. Block diagram
  2. Schematic diagram
  3. Pictorial diagram
  4. Wiring diagram
Show answer

Correct answer: Wiring diagram

A wiring diagram shows relative layout and connections but is harder for troubleshooting.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 6.2: Types of Electrical Diagrams

Practice wiring and components

Questions last reviewed: 18 October 2026