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Home ‣ Digital Electronics ‣ Combinational Logic Circuits Comments
  • Question

  • In true sum-of-products expressions, the inversion signs cannot cover more than single variables in a term.


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  • A. True
  • B. False

  • Correct Answer
  • True 

    • Combinational Logic Circuits problems

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    • 1. The simplified form of .

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    • A. True
    • B. False
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    • 2. An exclusive-OR gate will invert a signal on one input if the other is always HIGH.

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    • A. True
    • B. False
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    • 3. The 54 prefix on ICs indicates a broader operating temperature range, generally intended for military use.

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    • A. True
    • B. False
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    • 4. A digital circuit that converts coded information into a familiar or non-coded form is known as an encoder.

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    • A. True
    • B. False
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    • 5. Three select lines are required to address four data input lines.

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    • A. True
    • B. False
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    • 6. Truth tables are great for listing all possible combinations of independent variables.

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    • A. True
    • B. False
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    • 7. The Boolean equation of the exclusive-NOR function is .

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    • A. True
    • B. False
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    • 8. When decisions demand two possible actions, the IF/THEN/ELSE control structure is used.

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    • A. True
    • B. False
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    • 9. A good rule of thumb for determining the pin numbers of dual-in-line package IC chips would be to place the notch to your right and pin #1 will always be in the lower right corner.

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    • A. True
    • B. False
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    • 10. In an even-parity system, the parity bit is adjusted to make an even number of one bits.

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    • A. True
    • B. False
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