Red Seal Electrician Practice
Motor controlsQuestion 336 of 1506

Y is energized if A or B is pressed, but not when both are pressed. Which function is this?

  1. OR
  2. NOR
  3. XOR
  4. NOT
Show answer

Correct answer: XOR

XOR is an OR that drops out when both inputs are on.

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

Practice motor controls

Questions last reviewed: 18 October 2026