Electrical Engineering Questions And Answers :: Power Systems: part3

Electrical Engineering : Power Systems QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.The function of the earth wire in an extra high voltage line is to

prevent earth fault
provide a safety measure for any high-flying object
provide a shield to the phase con-ductors from direct lightning stroke
provide mechanical strength to the towers

22.A loss less line terminated with its surge impedance has

flat voltage profile
transmission line angle is greater than actual length of line
transmission line agnle is less than the actual length
both (a) and (b) above

23.With 100 % inductive shunt compensation, the voltage profile is flat for

100 % loading of line
50 % loading of line
zero loading of line
none of the above

24.If a line is 100 % series compensated it may result into series resonance at power frequency of

50 Hz
150 Hz
100 Hz
none of the above

More Power Systems QUESTIONS AND ANSWERS available in next pages

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