Just Crack Interview

Electrical interview questions – page 23

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

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  1. How tubelight circuit is connected and how it works?

  2. What are the safety devices in generator.

  3. Fundamentals of transformers.

  4. Good morning:I'm looking for some informations about the OLTC or the LTC:I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operationCordially

  5. Working principle of generators?

  6. Whether the LIGHTNING is AC or DC?

  7. For a 5hp motor to operate from 100kva generator ,what size of cable required in sqmm.

  8. Do you know the overhauling of a motor?

  9. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.

  10. Is there any difference between protection C.T and measuring C.T?if yes then what is the difference?

  11. When will cause the negative sequence falut in electrical system?

  12. WHAT IS THE DIFFERENCE BETWEEN A DC MACHINE OUTPUT AND RECTIFIER OUTPUT...

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  14. BRIEF ME CHECKING PRCEDURE OF BATTERY 12V 26AH

  15. What means zero and span in transmitter callibration.

  16. Difference between isolater and circuit breaker?

  17. What is cop inAir cnditioning and how we calculate it.

  18. What is the basic difference between synchronousmotor,synchronous generator and induction motor

  19. Why we can't use more then 50 hz in india ? Is it possible ?

  20. How check electrical motor winding.

  21. Difference between earthing and grounding?

  22. How to calculate the size of window A.C. for 200 Sq. ft room?

  23. How to calculate the capacitor rating for improving power factor

  24. When a conductor is being disconnected from live cct, still it showing charged, if its checked by line tester?

  25. What are effects of harmonics in the three phase a.c power system ?

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  27. What is the diffrence between star and delta connection ?when we use each one ?what is the best ?

  28. What is the difference b/w winding insulation class and winding temperature class?

  29. What is the effect of leading power factor for power transformer & D.G?

  30. Why the impedence of the transformer is expressed in percentage?

  31. Why three phase three wire system probably did'nt have neutral

  32. What is the size(sq.mm) of these conductorsdog,rabbit,tiger,panther,mush,

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