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  1. The octal equivalent of (247)10 is __________
  2. A.
    (252)8
    B.
    (350)8
    C.
    (367)8
    D.
    (400)8

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  3. The hexadecimal number for (95.5)10 is _______
  4. A.
    (5F.8)16
    B.
    (9A.B)16
    C.
    (2E.F)16
    D.
    (5A.4)16

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  5. How many flip flops are required to construct a decade counter
  6. A.
    10
    B.
    3
    C.
    4
    D.
    2

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  7. How many select lines will a 16 to 1 multiplexer will have
  8. A.
    4
    B.
    3
    C.
    5
    D.
    1

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  9. To realize Y = CD+EF+G how many AND gates are required
  10. A.
    4
    B.
    5
    C.
    3
    D.
    2

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  11. The excess 3 code of decimal number 26 is
  12. A.
    0100 1001
    B.
    01011001
    C.
    1000 1001
    D.
    01001101

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  13. 1's complement representation of decimal number of -17 by using 8 bit representation is
  14. A.
    1110 1110
    B.
    1101 1101
    C.
    1100 1100
    D.
    0001 0001

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  15. The decimal equivalent of Binary number 11010 is
  16. A.
    26
    B.
    36
    C.
    16
    D.
    23

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  17. The following switching functions are to be implemented using a Decoder F1=∑m gm(1,2,4,8,10,14) f2 = ∑m gm(2,5,9,11) f3 = ∑m gm(2,4,5,6,7) Then what is the minimum configuration of the decoder
  18. A.
    2 to 4 line
    B.
    3 to 8 line
    C.
    4 to 16 line
    D.
    5 to 32 line

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  19. For which of the following digital logic family has the lowest propagation delay time
  20. A.
    ECL
    B.
    TTL
    C.
    CMOS
    D.
    PMOS

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