Electrical Engineering Questions And Answers :: Switchgear Protections: part2

Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part2 : 11 to 15

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

11.In a circuit breaker the basic problem is to

maintain the arc
extinguish the arc
transmit large power
emit the ionizing electrons

12.The time of closing the cycle, in modern circuit breakers is

0.003 sec
0.001 sec
0.01 sec
0.10 sec

13.Shunt capacitance is neglected while considering

short transmission line
medium transmission line
long transmission line
medium and long transmission lines

14.The arc voltage produced in A.C. circuit breaker is always

in phase with the arc current
lagging the arc current by 90"
leading the arc current by 90�
none of the above

15.The delay fuses are used for the protection of ________ .

power outlet circuits
fluorescent lamps
light circuits

More Switchgear Protections QUESTIONS AND ANSWERS available in next pages

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