In what type of electrical diagram are images of components used instead of conventional electrical symbols?

• A. Pictorial diagram
• B. Wiring diagram
• C. Installation diagram
• D. Block diagram

Answer: (A)

Using pictures of components instead of schematic symbols is called a pictorial diagram. This style shows real-looking images of parts, making it easy to recognize them on actual equipment. It’s different from wiring diagrams, which use standardized symbols to represent components and show how they’re connected, and from block diagrams, which use simple shapes to illustrate subsystem relationships without depicting individual parts. Installation diagrams focus on how to place and mount equipment rather than detailing the electrical connections. So the image-based approach described aligns with a pictorial diagram.