1.
A 3-phase 4 wire system is commonly used on________________?

2.
There is a greater possibility of occurence of corona during______________?

3.
Which of the following is not a constituent for making porcelain insulators ?

4.
Which of the following materials is used for overhead transmission lines ?

5.
The power transmitted will be maximum when____________?

6.
A feeder, in a transmission system, feeds power to________________?

7.
The presence of ozone due to corona is harmful because it________________?

8.
For an overhead line, the surge impedance is taken as________________?

9.
Which of the following is usually not the generating voltage ?

10.
As compared to a 2-wire D.C. distributor, a 3-wire distributor with same maximum voltage to earth uses only__________________?

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