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Home ‣ Digital Electronics ‣ Describing Logic Circuits Comments
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  • The comments in ADHL are enclosed between # characters.


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    • Describing Logic Circuits problems

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    • 1. Boolean multiplication is symbolized by A + B.

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    • A. True
    • B. False
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    • 2. The given figure shows the correct logic implementation of the distributive law.


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    • A. True
    • B. False
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    • 3. The truth table shown below describes the operation of a NOR gate.


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    • A. True
    • B. False
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    • 4. The OR gate performs like two switches wired in a series.

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    • A. True
    • B. False
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    • 5. The application of DeMorgan's theorems to a Boolean expression with double and single inversions produces a resultant expression that contains only single inverter signs over single variables.

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    • A. True
    • B. False
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    • 6. The figure given below is an example of the implementation of AND-OR-INVERT logic.


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    • A. True
    • B. False
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    • 7. In VHDL, local signals are declared in the VARIABLE section, which is placed between the SUBDESIGN section and the logic section.

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    • A. True
    • B. False
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    • 8. NOR gates can be used to construct AND gates.

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    • A. True
    • B. False
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    • 9. The SUBDESIGN section defines the input and output of the logic circuit block.

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    • A. True
    • B. False
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    • 10. An encoder in which the highest and lowest value input digits are encoded simultaneously is known as a priority encoder.

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    • A. True
    • B. False
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