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  • Question
  • Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?


  • Options
  • A. OR gates only
  • B. AND gates and NOT gates
  • C. AND gates, OR gates, and NOT gates
  • D. OR gates and NOT gates

  • Correct Answer
  • AND gates, OR gates, and NOT gates 


  • Logic Gates problems


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    • 1. The basic logic gate whose output is the complement of the input is the:

    • Options
    • A. OR gate
    • B. AND gate
    • C. INVERTER gate
    • D. comparator
    • Discuss
    • 2. A NAND gate has:

    • Options
    • A. LOW inputs and a LOW output
    • B. HIGH inputs and a HIGH output
    • C. LOW inputs and a HIGH output
    • D. None of the these
    • Discuss
    • 3. How many truth table entries are necessary for a four-input circuit?

    • Options
    • A. 4
    • B. 8
    • C. 12
    • D. 16
    • Discuss
    • 4. How many NAND circuits are contained in a 7400 NAND IC?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 8
    • Discuss
    • 5. If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):

    • Options
    • A. AND
    • B. NAND
    • C. NOR
    • D. OR
    • Discuss
    • 6. A single transistor can be used to build which of the following digital logic gates?

    • Options
    • A. AND gates
    • B. OR gates
    • C. NOT gates
    • D. NAND gates
    • Discuss
    • 7. The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):

    • Options
    • A. OR gate
    • B. AND gate
    • C. NOR gate
    • D. NOT gate
    • Discuss
    • 8. What input values will cause an AND logic gate to produce a HIGH output?

    • Options
    • A. At least one input is HIGH.
    • B. At least one input is LOW.
    • C. All inputs are HIGH.
    • D. All inputs are LOW.
    • Discuss
    • 9. The output will be a LOW for any case when one or more inputs are zero in a(n):

    • Options
    • A. OR gate
    • B. NOT gate
    • C. AND gate
    • D. NAND gate
    • Discuss
    • 10. CMOS logic is probably the best all-around circuitry because of its:

    • Options
    • A. packing density
    • B. low power consumption
    • C. very high noise immunity
    • D. low power consumption and very high noise immunity
    • Discuss


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