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

Related Mcqs:

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

   A. 31.25 percent of copper B. 33.3 percent of copper C. 66.7 percent of copper D. 125 percent of copper...

2. Which of the following equipment, for regulating the voltage in distribution feeder, will be most economical?

   A. Static condenser B. Synchronous condenser C. Tap changing transformer D. Booster transformer...

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

   A. distributors B. generating stations C. service mains D. all of the above...

4. By 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...

5. The power transmitted will be maximum when____________?

   A. corona losses are minimum B. reactance is high C. sending end voltage is more D. receiving end voltage is more...

6. The voltage drop, for constant voltage transmission is compensated by installing__________?

   A. inductors B. capacitors C. synchronous motors D. all of above E. none of the above...

7. The voltage regulation in magnetic amplifier type voltage regulator is effected by__________?

   A. electromagnetic induction B. varying the resistance C. varying the reactance D. variable transformer...

8. The operating voltage of high voltage cables is up to_______________?

   A. l.lkV B. 3.3kV C. 6.6kV D. llkV...

9. The frequency of voltage generated, in case of generators, can be increased by___________?

   A. using reactors B. increasing the load C. adjusting the governor D. reducing the terminal voltage E. none of the above...

10. The voltage of the single phase supply to residential consumers is_____________?

    A. 110 V B. 210 V C. 230 V D. 400 V...