Red Seal Electrician Practice
Motor controlsQuestion 104 of 1506

Two normally open contacts wired in series control a lamp. What logic function is this?

  1. AND
  2. OR
  3. NOT
  4. NOR
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Correct answer: AND

Both contacts must be closed.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 6.2: Digital Logic Functions

Practice motor controls

Questions last reviewed: 18 October 2026