Electrical Engineering Questions And Answers :: Switchgear Protections: part4

Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part4 : 21 to 25

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2021 and IES 2021 examinations :

21.The fuse wire, in D.C. circuits, is inserted in

negative circuit only
positive circuit only
both (a) and (b)
either (a) or (b)

22.Oil switches are employed for

low currents circuits
low voltages circuits
high voltages and large currents circuits
all circuits

23.Protection by fuses is generally not used beyond

20 A
50 A
100 A
200 A

24.The fuse blows off by

none of the above

More Switchgear Protections QUESTIONS AND ANSWERS available in next pages

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