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Home ‣ Digital Electronics ‣ Combinational Logic Circuits Comments
  • Question

  • The carry output of each adder in a ripple adder provides an additional sum output bit.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Combinational Logic Circuits problems

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    • 1. To implement the full-adder sum functions, two exclusive-OR gates can be used.

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    • A. True
    • B. False
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    • 2. A combinatorial logic circuit has memory characteristics that "remember" the inputs after they have been removed.

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    • A. True
    • B. False
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    • 3. The K-map in the figure below shows the correct implementation of the expression X = ACD + AB(CD + BC).


    • Options
    • A. True
    • B. False
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    • 4.  is in the form of a sum-of-products expression.

    • Options
    • A. True
    • B. False
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    • 5. The K-map provides a "graphical" approach to simplifying sum-of-products expressions.

    • Options
    • A. True
    • B. False
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    • 6. Single looping in groups of three is a common K-map simplification technique.

    • Options
    • A. True
    • B. False
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    • 7. The input at the 1, 2, 4, 8 inputs to a 4-line to 16-line decoder with active-low outputs is 1110. As a result, output line 7 is driven LOW.

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    • A. True
    • B. False
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    • 8. The XOR gate will produce a HIGH output if only one but not both of the inputs is HIGH.

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    • A. True
    • B. False
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    • 9. The Boolean equation results from this Karnaugh map.


    • Options
    • A. True
    • B. False
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    • 10. TTL stands for transistor-technology-logic.

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    • A. True
    • B. False
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