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Electrical interview questions – page 13

1,095 questions. Tap “Show answer” to check yourself.

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  1. How vfd drives energy save

  2. Which motor has high Starting Torque and Staring current DC motor, Induction motor or Synchronous motor?

  3. How DC to AC convert

  4. What makes the difference between 50Hz supply and 60Hz supply which one is economical and how can you support your answer...........?

  5. How many earthings are required for commissioning the Transformer?

  6. What do you mean by zener breakdown and avalanche breakdown?

  7. Difference between forced fan and induced fan.principal of cooling towercarbon footprintingstress and strain diagram with whole detailstypes of gesr boxpressure with tempeature fall . whycam profile on which patternstress and bending moment diagram for catilever beam

  8. What are the various types of towers used in transmission line

  9. Whats meant by trivector meter where it is connected at the substation?

  10. Boiler is running in rankine cycle and deisel generator is....?

  11. How the 12 pulse rectifier is made?

  12. How much Amp we can put in 1200kva generator?

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  14. What is diversity factor.

  15. A 6.6 KV/ 440V Xformer. what are the imporatant parts & equipment required for it's protection panel.

  16. What are the different types of bus bar used at electrical work at shelter

  17. If d gen is 50kw,load is 60 kw,hw d gen ll supply d remaining power?

  18. Explain the Term in CT Name Plate ? Class: 5Ps

  19. How can we calculate single phase load into three phase load

  20. Wghat is D-curve MCBs

  21. While elctrical load on DG,capacitor banks kept off why so? If capacitor banks on is their any effect DG?

  22. Why cant we use mV instead of mA?

  23. How can you justify a fully carged battery by physical checkup ?

  24. Where do we connect tap of tap changer, to H.V. side or L.V.side? and why?

  25. How can maintaince the acb contactor moveing and fixing kit

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  27. What is LCI drive & how does it work & why it is used?

  28. Which is remain unchanged in transformer action?

  29. What are the classification of Servo Motor?

  30. How can you set a zero and span of transmitter?

  31. Why DC exitation to AC Generator? Why not AC?

  32. WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??

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