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Home ‣ Digital Electronics ‣ Describing Logic Circuits Comments
  • Question

  • 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

  • Correct Answer
  • False 

    • Describing Logic Circuits problems

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    • 1. 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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    • 2. The comments in ADHL are enclosed between # characters.

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    • A. True
    • B. False
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    • 3. Boolean multiplication is symbolized by A + B.

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


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


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

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    • A. True
    • B. False
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    • 7. 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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    • 8. 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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    • 9. The look-ahead carry method suffers from propagation delays.

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    • A. True
    • B. False
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    • 10. This is an example of a POS expression:


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    • A. True
    • B. False
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