Overhead line MCQ

Solve MCQ of Overhead line,here given lots of unique mcq for you.It can be very help full for your electrical engineering exam or competitive exams..

Overhead Line MCQ’s


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

A.Overhead system

B.Underground system

C.Both (a) and (b)

D.None of the above


2. Which are the conductors, which join consumer’s terminals to distribution.

  1. Distributors
  2. Service mains
  3. Feeders
  4. None of the above

3. Underground system cannot be operated above___

  1. 440 V
  2. 11 kV
  3. 33 kV
  4. 66 kV

4. The overhead transmission system can be designed for operation up to___

  1. 11 kV
  2. 33 kV
  3. 66 kV
  4. 400 kV

5. If the variable part of an annual cost on account of interest and depreciation on capital outlay is equal to the yearly cost of electrical energy wasted in the conductors, the complete yearly cost will be least, and the corresponding size of the conductor will be most economical. This statement is known as

  1. Kelvin’s law
  2. Ohm’s law
  3. Kirchhoffs law
  4. Faraday’s law
  5. none of the above

6. Wooden poles well impregnated concluding creosote oil or any chemical compound have life____

  1. from 2 to 5 years
  2. 10 to 15 years
  3. 25 to 30 years
  4. 60 to 70 years

7. Which material is not used for the transmission and distribution of electrical power?

  1. Copper
  2. Aluminum
  3. Steel
  4. Tungsten

8. Galvanised steel wire is generally used as

  1. stay wire
  2. earth wire
  3. structural components
  4. all of the above

9. Usual spans with R.C.C. pole are___

  1. 40—50 meters
  2. 60—100 meters
  3. 80—100 meters
  4. 300—500 meters

10. Corona is considerably affected by___

  1. Size of the conductor
  2. The shape of the conductor
  3. The surface condition of the conductor
  4. All of the above
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