Electrical Engineering Questions And Answers :: Switchgear Protections: part5

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 2021 and IES 2021 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

rewirable fuse
H.R.C. only
all of the above

3.To limit short-circuit current in a power system are used.

earth wires
H.R.C. fuses

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

    Health is the greatest gift, contentment is the greatest wealth -Buddha
If your ship doesn’t come in, swim out to meet it!-Jonathan Winters