Sunday, December 9, 2012

Quiz on digital basics

Digital Basics Quiz

Digital Basics Quiz

  1. Which of the following is not a weighted code ?

  2. XS3
    BCD
    Decimal
    Hexadecimal

  3. A decoder is a

  4. Combinational Circuit
    Seuential Circuit
    Neither
    Could be both

  5. Carry look ahead adder is faster than ripple carry adder

  6. True
    False
    Both operate at same speed
    Depends on input

  7. The truth table of "sum" of a half adder is same as

  8. OR gate
    AND gate
    XOR gate
    XNOR gate

  9. If the inputs to an NAND gate are negated, it becomes equivalent to

  10. AND gate
    OR gate
    XOR gate
    NOT gate

  11. A 64:1 Mux will have how many select lines ?

  12. 64
    4
    8
    6

  13. A circuit that converts input Decimal to BCD is a

  14. Encoder
    Decoder
    Mux
    Demux

  15. To perform BCD addition using an IC meant for adding Binary numbers we need to

  16. Add 6 to the all result obtained from the binary addition
    Subtract six from all the results obtained from the binary addition
    Add 6 to the all results greater than 9, obtained from the binary addition
    Subtract six from all the results greater than 9, obtained from the binary addition

  17. Convert the binary number 1111 to its grey code equivalent

  18. 1001
    1000
    1111
    1010

  19. In a 1:8 DEMUX if select lines are 011 and Data input is 1, output will be available on

  20. Line 0 of output
    Line 3 of output
    Line 2 of output
    Line 7 of output

Hope you had fun.


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