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What does the term PLC stand for?

  • A.Programmable lift computer
  • B.Program list control
  • C.Programmable logic controller
  • D.Piezo lamp connector

Answer: C

PLC stands for programmable logic controller.

It is a ruggedised industrial computer that reads sensors and drives motors, valves and relays on a factory floor. It replaced banks of hard-wired relays, and its logic is usually written as a ladder diagram.

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