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Home ‣ Digital Electronics ‣ Combinational Logic Circuits Comments
  • Question

  • The ________ circuit produces a HIGH output whenever the two inputs are unequal.


  • Options
  • A. exclusive-AND
  • B. exclusive-NOR
  • C. exclusive-OR
  • D. inexclusive-OR

  • Correct Answer
  • exclusive-OR 

    • Combinational Logic Circuits problems

    Search Results

    • 1. A gate that could be used to compare two logic levels and provide a HIGH output if they are equal is a(n) ________.

    • Options
    • A. XOR gate
    • B. XNOR gate
    • C. NAND gate
    • D. NOR gate
      • Discuss
    • 2. For the XNOR gate truth table shown below, the values for w, x, y, and z are ____, ____, ____, and ____, respectively.


    • Options
    • A. 1, 0, 0, 1
    • B. 0, 1, 0, 1
    • C. 1, 1, 1, 0
    • D. 1, 0, 0, 0
      • Discuss
    • 3. The ________ prefix on IC's indicates a broader operating temperature range, and the devices are generally used by the military.

    • Options
    • A. 54
    • B. 2N
    • C. 74
    • D. TTL
      • Discuss
    • 4. An 8-bit binary number is input to an odd parity generator. The parity bit will equal 1 only if ________.

    • Options
    • A. the number is odd
    • B. the number of 1s in the number is odd
    • C. the number is even
    • D. the number of 1s in the number is even
      • Discuss
    • 5. To subtract a signed number (the subtrahend) from another signed number (the minuend) in the 2's complement system, the minuend is ________.

    • Options
    • A. complemented only if it is positive
    • B. complemented only if it is negative
    • C. always complemented
    • D. never complemented
      • Discuss
    • 6. The ________ series of IC's are pin, function, and voltage-level compatible with the 74 series IC's.

    • Options
    • A. ALS
    • B. CMOS
    • C. HCT
    • D. 2N
      • Discuss
    • 7. When grouping cells within a K-map, the cells must be combined in groups of ________.

    • Options
    • A. 2's
    • B. 1, 2, 4, 8, etc.
    • C. 4's
    • D. 3's
      • Discuss
    • 8. The simplified form of is ________.

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. One reason for using the sum-of-products form is that it can be implemented using all ________ gates without much difficulty.

    • Options
    • A. NOR
    • B. NAND
    • C. AND
    • D. DOOR
      • Discuss
    • 10. The output of a gate has an internal short; a current tracer will ________.

    • Options
    • A. identify the defective gate
    • B. show whether the gate is shorted to Vcc or ground
    • C. probably not be able to locate the problem
    • D. be able to identify the defective load node
      • Discuss

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