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Home ‣ Digital Electronics ‣ Describing Logic Circuits Comments
  • Question

  • The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):


  • Options
  • A. NOR gate
  • B. OR gate
  • C. AND gate
  • D. NOT operation

  • Correct Answer
  • OR gate 

    • Describing Logic Circuits problems

    Search Results

    • 1. Which of the figures (a to d) is the DeMorgan equivalent of Figure (e)?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 2. Which of the symbols shown below represents an AND gate?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 3. Which of the following is a form of DeMorgan's theorem?

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. Which of the examples below expresses the associative law of addition:

    • Options
    • A. A + (B + C) = (A + B) + C
    • B. A + (B + C) = A + (BC)
    • C. A(BC) = (AB) + C
    • D. ABC = A + B + C
      • Discuss
    • 5. An OR gate with inverted inputs functions as:

    • Options
    • A. an AND gate.
    • B. a NAND gate.
    • C. a NOR gate.
    • D. an inverter.
      • Discuss
    • 6. For a three-input AND gate, with the input waveforms as shown below, which output waveform is correct?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 7. For a three-input OR gate, with the input waveforms as shown below, which output waveform is correct?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 8. Which of the figures given below represents a NOR gate?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 9. For a 3-input NAND gate, with the input waveforms as shown below, which output waveform is correct?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 10. Simplify the expression using DeMorgan's theorems.

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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