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Describing Logic Circuits problems


  • 1. The Boolean expression for a three-input AND gate is X = ABC.

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

  • Options
  • A. True
  • B. False
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  • 3. In a text-based language, the circuit being described must be given a name.

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  • A. True
  • B. False
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  • 4. 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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  • 5. 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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  • 6. In an expression containing both AND and OR operations, the AND operations are performed first (unless parentheses indicate otherwise).

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

    Digital Electronics Describing Logic Circuits: 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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  • 9. A NAND gate consists of an AND gate and an OR gate connected in series with each other.

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  • A. True
  • B. False
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  • 10. The NAND gate is an example of combinational logic.

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  • A. True
  • B. False
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