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Electrical interview questions – page 17

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  1. You r graduated as ELECTRONICS AND COMMUNCATION ENGINEER,then y u r looking for a job in IT side?

  2. What happens in the primary side of the transformer if transformer is short circuited first and increasing theresistance of the short circuit gradually?

  3. What is Electrical Engineering?

  4. What is the difference between effective earthing and resistive earthing?

  5. What is the acceptance value of leakage current in HI POT test

  6. What is surrounding current of dg set?

  7. What is compressor?

  8. What is power factor?

  9. When we connect a ceiling fan to a inverter's outputvoltage, it give some noise, why?

  10. How can we check a fully charged battery?

  11. What will happen if we do not provide earthing to the newtral of a power system ?

  12. How does electrical train works and what type of motors are used to drive the train?which level of supply voltage is used?

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  14. If the capacitor feeder is switched ON without any load, is there any display in the ammeter at the incomer?

  15. What is the better way of passing 400 amp from sending end to receiving end ? By overhead line or underground cable and why ? if underground cable then how much depth require ?

  16. WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

  17. When neutral will carry the current?what could be the magnitude?

  18. Can we connect two or more energy meters/Amp meters on one CT set(Three phase).

  19. EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?

  20. WHAT ARE TRANSMISSION LINE LOSSES DURING WINTER AND SUMMERSEASON?

  21. Which of the following transformer of same rating can be used for paralling a)star-delta and delta-star b)star-star and delta-delta c)delta-delta and delta-star

  22. Why we use isolation transformer?

  23. What is surge impedence loading

  24. IF we have three 30KW motor, these motors are connected in DOL, star-delta and VFD respectively, what will be the fuse rating for the above three?

  25. What is brushless generator.How does work it..??

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  27. WHICH IS BEST INSTRUMENTATION OR ELECTRICAL ENGG?

  28. What is the function of RVT

  29. Why we define potections of Tourbo generator in Class A & B.

  30. What are the characteristics of an Ideal voltage source?

  31. In a closed circuit if two 5volt power supplier are connected in parrel what is the current direction in tihs circuit?

  32. What is the ciruit diagram of transformer vector grup test?

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