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  • Question

  • The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A ? H) is correct?

    The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A ? H)


  • Options
  • A. 10111100
  • B. 10111000
  • C. 11100111
  • D. 00011101

  • Correct Answer
  • 10111100 

    • Combinational Logic Analysis problems

    Search Results

    • 1. The inverter can be produced with how many NAND gates?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 2. The output of an exclusive-NOR gate is 1. Which input combination is correct?

    • Options
    • A. A = 1, B = 0
    • B. A = 0, B = 1
    • C. A = 0, B = 0
    • D. none of the above
      • Discuss
    • 3. A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?

    • Options
    • A. A = 0, B = 0, C = 0, D = 0
    • B. A = 0, B = 1, C = 1, D = 0
    • C. A = 1, B = 1, C = 0, D = 0
    • D. A = 1, B = 0, C = 0, D = 0
      • Discuss
    • 4. The Boolean SOP expression obtained from the truth table below is ________.


    • Options
    • A.
    • B.
    • C.
    • D. None of these
      • Discuss
    • 5. Referring to the GAL diagram, which is the correct logic function?


    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. The following waveform pattern is for a(n) ________.


    • Options
    • A. 2-input AND gate
    • B. 2-input OR gate
    • C. Exclusive-OR gate
    • D. None of the above
      • Discuss
    • 7. One positive pulse with tw = 75 µs is applied to one of the inputs of an exclusive-OR circuit. A second positive pulse with tw = 15 µs is applied to the other input beginning 20 µs after the leading edge of the first pulse. Which statement describes the output in relation to the inputs?

    • Options
    • A. The exclusive-OR output is a 20 µs pulse followed by a 40 µs pulse, with a separation of 15 µs between the pulses.
    • B. The exclusive-OR output is a 20 µs pulse followed by a 15 µs pulse, with a separation of 40 µs between the pulses.
    • C. The exclusive-OR output is a 15 µs pulse followed by a 40 µs pulse.
    • D. *The exclusive-OR output is a 20 µs pulse followed by a 15 µs pulse, followed by a 40 µs pulse.
      • Discuss
    • 8. The following waveform pattern is for a(n) ________.


    • Options
    • A. 2-input AND gate
    • B. 2-input OR gate
    • C. Exclusive-OR gate
    • D. None of the above
      • Discuss
    • 9. How many AND gates are required to implement the Boolean expression, ?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 10. Implementing the expression using NAND logic, we get:


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

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