Motor controlsQuestion 335 of 1506

Lamp Y is on in every case except when both A and B are pressed. Which function is this?

  1. NAND
  2. NOR
  3. AND
  4. XOR
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Correct answer: NAND

NAND is the inverse of AND.

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

Practice motor controls

Questions last reviewed: 18 October 2026