Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part5 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.In a single bus-bar system there will be complete shut down when |
| fault occurs on the bus itself |
| fault occurs on neutral line |
| two or more faults occur simultaneously |
| fault occurs with respect to earthing |
2.The information to the circuit breaker under fault conditions is provided by |
| relay |
| rewirable fuse |
| H.R.C. only |
| all of the above |
3.To limit short-circuit current in a power system are used. |
| earth wires |
| isolators |
| H.R.C. fuses |
| reactors |
4.A balanced 3-phase system consists of |
| zero sequence currents only |
| positive sequence currents only |
| negative and zero sequence currents |
| zero, negative and positive sequence currents |
More Switchgear Protections QUESTIONS AND ANSWERS available in next pages
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