Red Seal Electrician Practice
Motor controlsQuestion 26 of 1506

PLC programs are usually written to look like what?

  1. Single-line power diagrams
  2. Wiring harness drawings
  3. Ladder logic diagrams
  4. Nameplate data tables
Show answer

Correct answer: Ladder logic diagrams

The language was made to look like ladder diagrams so electricians feel at home with it.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 6.6: Programmable Logic Controllers (PLC)

Practice motor controls

Questions last reviewed: 18 October 2026