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ECE :: Digital Electronics

  1. It is desired to route data from many registers to one register. The device needed is

  2. A.
    decoder
    B.
    multiplexer
    C.
    demultiplexer
    D.
    counter

  3. Advanced low power Schottky is a part of

  4. A.
    ECL family
    B.
    CMOS family
    C.
    TTL family
    D.
    none of the above

  5. A device that converts from decimal to binary numbered is called

  6. A.
    decoder
    B.
    encoder
    C.
    CPU
    D.
    converter

  7. It is desired to clean up ragged looking pulsed that have been distorted during transmission from one place to another, which of the following device will be appropriate?

  8. A.
    Multiplexer
    B.
    D/A converter
    C.
    JK flip-flop
    D.
    Schmitt trigger

  9. Decimal number 9 in gray code =

  10. A.
    1100
    B.
    1101
    C.
    110
    D.
    1111

  11. In magnetic film memory, the memory element consits of

  12. A.
    plated wires
    B.
    superconductive material
    C.
    nickel iron alloy
    D.
    doped aluminium

  13. Which device changes serial data to parallel data?

  14. A.
    Counter
    B.
    Multiplexer
    C.
    Demultiplexer
    D.
    Flip flop

  15. CD4010 is a

  16. A.
    inverting buffer
    B.
    non-inverting hex buffer
    C.
    NOR IC
    D.
    NAND IC

  17. What is the terminal count in decimal form?

  18. A.
    1579
    B.
    1681
    C.
    1881
    D.
    2014

  19. The binary sum of 1110102 and 110112 is

  20. A.
    10101012
    B.
    10110012
    C.
    10111012
    D.
    11111112