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MCQs 1: 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______________?

one-fourth one-third one-half twice none of the above
Answer Explanation

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

25 percent 50 percent 75 percent 100 percent
Answer Explanation

MCQs 3: Large industrial consumers are supplied electrical energy at__________________?

400 V 11 kV 66 kV 400 kV
Answer Explanation

MCQs 4: The spacing between phase conductors of a 220 kV line is approximately equal to________________?

2 m 3.5 m 6 m 8.5 m
Answer Explanation

MCQs 5: The minimum clearance between the ground and a 220 kV line is about_________________?

4.3 m 5.5 m 7.0 m 10.5 m
Answer Explanation

MCQs 6: The material commonly used for sheaths of underground cables is______________?

lead rubber copper iron
Answer Explanation

MCQs 7: The material generally used for armour of high voltage cables is_____________?

aluminium steel brass copper
Answer Explanation

MCQs 8: In transmission lines the cross-arms are made of________________?

copper wood R.C.C. steel
Answer Explanation

MCQs 9: Overhead lines generally use__________________?

copper conductors all aluminium conductors A.C.S.R. conductors none of these
Answer Explanation

MCQs 10: The power factor of industrial loads is generally______________?

unity lagging leading zero
Answer Explanation

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