Motor controlsQuestion 337 of 1506

Output Y is energized when button A is NOT pressed. Which function does this describe?

  1. AND
  2. OR
  3. NOT
  4. NAND
Show answer

Correct answer: NOT

NOT inverts its single input.

Source: Troubleshooting Motors and Controls (Dickson-Self), 2.3: Introduction to Logic

Practice motor controls

Questions last reviewed: 18 October 2026