Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part3 : 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.Distance relays are generally |
| split-phase relays |
| reactance relays |
| impedance relays |
| none of the above |
2.Which of the following parameter can be neglected for a short line ? |
| Inductance |
| Capacitance |
| Resistance |
| Reactance |
3.Discrimination between main and back up protection is provided by the use of relays which are |
| fact |
| sensitive |
| slow |
| none of the above |
4.The short circuit in any winding of the transformer is the result of |
| mechanical vibration |
| insulation failure |
| loose connection |
| impulse voltage |
5.The relay with inverse time characteristic will operate within |
| 1.5 sec |
| 5 to 10 sec |
| 5 to 20 sec |
| 20 to 30 sec |
More Switchgear Protections QUESTIONS AND ANSWERS available in next pages
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