Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part2 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.In a circuit breaker the basic problem is to |
| maintain the arc |
| extinguish the arc |
| transmit large power |
| emit the ionizing electrons |
12.The time of closing the cycle, in modern circuit breakers is |
| 0.003 sec |
| 0.001 sec |
| 0.01 sec |
| 0.10 sec |
13.Shunt capacitance is neglected while considering |
| short transmission line |
| medium transmission line |
| long transmission line |
| medium and long transmission lines |
14.The arc voltage produced in A.C. circuit breaker is always |
| in phase with the arc current |
| lagging the arc current by 90" |
| leading the arc current by 90� |
| none of the above |
15.The delay fuses are used for the protection of ________ . |
| motors |
| power outlet circuits |
| fluorescent lamps |
| light circuits |
More Switchgear Protections QUESTIONS AND ANSWERS available in next pages
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