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Combinational Logic Analysis problems

  • 1. Implementing the expression AB + CDE using NAND logic, we get:

    Digital Electronics Combinational Logic Analysis: Implementing the expression AB + CDE using NAND logic, we get:


  • Options
  • A. (A)
  • B. (B)
  • C. (C)
  • D. (D)
    • Discuss
  • 2. A 4-variable AND-OR circuit produces a 0 at its Y output. Which combination of inputs is correct?

  • Options
  • A. A = 0, B = 0, C = 1, D = 1
  • B. A = 1, B = 1, C = 0, D = 0
  • C. A = 1, B = 1, C = 1, D = 1
  • D. A = 1, B = 0, C = 1, D = 0
    • Discuss
  • 3. One possible output expression for an AND-OR-Invert circuit having one AND gate with inputs A, B, and C and one AND gate with inputs D and E is ________.

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 4. Before an SOP implementation, the expression Digital Electronics Combinational Logic Analysis: Before an SOP implementation, the expression would require a total of how many gates?

  • Options
  • A. 1
  • B. 2
  • C. 4
  • D. 5
    • Discuss
  • 5. A 4-variable AND-OR-Invert circuit produces a 0 at its Y output. Which combination of inputs is correct?

  • Options
  • A.
  • B.
  • C.
  • D. none of the above
    • Discuss
  • 6. A logic circuit with an output Digital Electronics Combinational Logic Analysis: A logic circuit with an output consists of ________.

  • Options
  • A. two AND gates, two OR gates, two inverters
  • B. three AND gates, two OR gates, one inverter
  • C. two AND gates, one OR gate, two inverters
  • D. two AND gates, one OR gate
    • Discuss
  • 7. Referring to the GAL diagram, which is the correct logic function?

    Digital Electronics Combinational Logic Analysis: Referring to the GAL diagram, which is the correct logic function?


  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 8. The Boolean SOP expression obtained from the truth table below is ________.

    Digital Electronics Combinational Logic Analysis: The Boolean SOP expression obtained from the truth table below is ________.


  • Options
  • A.
  • B.
  • C.
  • D. None of these
    • Discuss
  • 9. 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
  • 10. 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

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