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 2024 and IES 2024 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 |
| burning |
| arcing |
| melting |
| none of the above |
More Switchgear Protections QUESTIONS AND ANSWERS available in next pages
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