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EEE :: Transmission and Distribution

  1. Which of the following regulations is considered best?

  2. A.

     50 %

    B.

     20 %

    C.

     10 %

    D.

     2 %


  3. Overhead lines generally use

  4. A.

     Copper conductors

    B.

     All aluminium conductors

    C.

     A.C.S.R. conductors

    D.

     None of these


  5. By which of the following systems electric power may be transmitted?

  6. A.

     Overhead system

    B.

     Underground system

    C.

     Both (A) and (B)

    D.

     None of the above


  7. Low voltage cables are meant for use up to

  8. A.

     1.1 kV

    B.

     3.3 kV

    C.

     6.6 kV

    D.

     11 kV


  9. Transmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is

  10. A.

     25 percent

    B.

     50 percent

    C.

     75 percent

    D.

     100 percent


  11. Aluminium has a specific gravity of

  12. A.

     1.5

    B.

     2.7

    C.

     4.2

    D.

     7.8


  13. In AC.S.R. Conductors, the insulation between aluminium and steel conductors is

  14. A.

     Insulin

    B.

     Bitumen

    C.

     Varnish

    D.

     No insulation is required


  15. A uniformly loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is

  16. A.

     One-fourth

    B.

     One-third

    C.

     One-half

    D.

     Twice


  17. The current drawn by the line due to corona losses is

  18. A.

     Non-sinusoidal

    B.

     Sinusoidal

    C.

     Triangular

    D.

     Square


  19. are the conductors, which connect the consumer's terminals to the distribution

  20. A.

     Distributors

    B.

     Service mains

    C.

     Feeders

    D.

     None of the above