TRANSMISSION AND DISTRIBUTION OF ELECTRICAL POWER- 1

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

. overhead system

underground system

both (A) and (B)

none of the above

2. _________ are the conductors, which connect the consumer’s terminals to the distribution.

distributors

service mains

feeders

none of the above

3. Overhead system can be designed for operation upto _________

11 KV

33 KV

66 KV

400 KV

4. Which of the following materials is not used for transmission and distribution of electrical power?

copper

aluminium

steel

tungsten

5. Galvanised steel wire is generally used as _____________

. stay wire

earth wire

structural components

all of the above

6. Which of the following is the source of heat generation in the cables?

dielectric losses in cable insulation

. square of current x R losses in the conductor

. losses in the metallic sheathings and armourings

all of the above

7. A booster is a ___________

. series wound generator

shunt wound generator

synchronous generator

none of the above

8. Which of the following faults is most likely to occur in cables?

cross or short-circuit fault

open circuit fault

breakdown of cable insulation

all of the above

9. Most of the high voltage transmission lines in India are _____________

underground

overhead

either of the above

none of the above

10. The distributors for residential areas are __________

single phase

three-phase three wire

three-phase four wire

none of the above

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