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      Question

      A safety system uses three inputs to a logic

      circuit. An alarm, X, sounds if input A represents ON and input B represents OFF, or if input B represents ON and input C represents OFF, which of the following logic circuits can be used for the above safety system?
      A A Correct Answer Incorrect Answer
      B B Correct Answer Incorrect Answer
      C C Correct Answer Incorrect Answer
      D D Correct Answer Incorrect Answer

      Solution

      The correct answer is A

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