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

    Implementing the expression AB + CDE using NAND logic, we get: (A) (B) (C) (D)


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

  • Correct Answer
  • (A) 


  • Combinational Logic Analysis problems


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    • 1. One of De Morgan's theorems states that . Simply stated, this means that logically there is no difference between:

    • Options
    • A. a NOR and an AND gate with inverted inputs
    • B. a NAND and an OR gate with inverted inputs
    • C. an AND and a NOR gate with inverted inputs
    • D. a NOR and a NAND gate with inverted inputs
    • Discuss
    • 2. The expression W(X + YZ) can be converted to SOP form by applying which law?

    • Options
    • A. associative law
    • B. commutative law
    • C. distributive law
    • D. none of the above
    • Discuss
    • 3. Which output expression might indicate a product-of-sums circuit construction?

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 4. From the truth table below, determine the standard SOP expression.


    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 5. Which of the following combinations cannot be combined into K-map groups?

    • Options
    • A. corners in the same row
    • B. corners in the same column
    • C. diagonal
    • D. overlapping combinations
    • Discuss
    • 6. 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
    • 7. 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
    • 8. Before an SOP implementation, the expression would require a total of how many gates?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 5
    • Discuss
    • 9. 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
    • 10. 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


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