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Home ‣ Digital Electronics ‣ Describing Logic Circuits Comments
  • Question

  • In a text-based language, the circuit being described must be given a name.


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  • A. True
  • B. False

  • Correct Answer
  • True 

    • Describing Logic Circuits problems

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    • 1. The inputs to an AND gate are: A = 1, B = 0, C = 1. The output will be LOW.

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    • A. True
    • B. False
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    • 2. The Boolean expression for a three-input AND gate is X = ABC.

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    • A. True
    • B. False
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    • 3. The complement of 1 is 0.

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    • A. True
    • B. False
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    • 4. The exclusive-OR is written in a Boolean equation as a plus sign with a circle around it.

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    • A. True
    • B. False
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    • 5. A parity checker is constructed in the same way as a parity generator, except that in a 4-bit system there must be five inputs, and the output is used as the error indicator.

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    • A. True
    • B. False
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    • 6. A LOW placed on the input of an inverter will produce a HIGH output.

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    • A. True
    • B. False
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    • 7. A minimum of three universal NOR gates would be required to perform the logical operation of a 2-input AND gate.

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    • A. True
    • B. False
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    • 8. In an expression containing both AND and OR operations, the AND operations are performed first (unless parentheses indicate otherwise).

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    • A. True
    • B. False
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    • 9. The effect of an inverted output being connected to the inverting input of another gate is to effectively eliminate one of the inversions, resulting in a single inversion.

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    • A. True
    • B. False
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    • 10. The timing diagram for a two-input NAND gate is shown below. The gate is working correctly.


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    • A. True
    • B. False
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