Home / ECE / Exam Questions Paper :: Section 3

ECE :: Exam Questions Paper

  1. The distance between target and radar is reduced to half. Power received increases by

  2. A.
    1/16
    B.
    1/4
    C.
    4 times
    D.
    16 times

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. The Causal system given below is __________
    H(z) = 6 + z-1 - z-2

  4. A.
    maximum phase
    B.
    minimum phase
    C.
    mixed phase
    D.
    none of these

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Given potential sin Θ cos Φ, find flux density D at (2, 2p, 0)

  6. A.
    22.12 pC/m2
    B.
    2.212 pC/m2
    C.
    22.12 nC/m2
    D.
    2.212 nC/m2

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The following circuit is implementation of

    1. Sum of full adder
    2. Carry of half adder
    3. Difference of full subtractor

  8. A.
    (i) only
    B.
    (iii) only
    C.
    (ii) only
    D.
    (i) and (ii)

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The Thevenin impedance Zth between the nodes P and Q in the following circuit is

  10. A.
    1
    B.
    C.
    D.

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. If the memory chip size is 256 x 1 bits, then the number of chips required to make up 1 kB (1024) bytes of memory is

  12. A.
    32
    B.
    24
    C.
    12
    D.
    8

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. A coil has a designed for high Q performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the Q factor and the active power P consumed by the coil will be affected as follows.

  14. A.
    P is doubled, Q is halved
    B.
    P is halved, Q is doubled
    C.
    P remains constant, Q is doubled
    D.
    P decreases 4 times, Q is doubled

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1 's, the expression formed can be represented in __________ as well as __________ form.

  16. A.
    exclusive - OR, NOR
    B.
    equivalence, exclusive - OR
    C.
    AND, coincidence
    D.
    OR, exclusive - OR

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Find the number of loop equation and number of possible trees for the given graph.

  18. A.
    7, 2097152
    B.
    7, 262144
    C.
    7.5764801
    D.
    6, 823543

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. The common emitter model is shown below:

    The h-parameter of this model are:

  20. View Answer

    Workspace

    Discuss Discuss in Forum