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Electrical interview questions – page 32

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

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  1. What is vector group? What is meant by DYN11?Why is it needed?

  2. What is Hi-Pot Test for Grid Station HV Equipments?

  3. What is the advantage of Cathodic eathing system and what is the basic principle and how itis working, please explain clearly .

  4. What is the range of UV & vis lamp in spectrophotometer.Dhaval patel

  5. How voltage step down is done?

  6. Consider a level troll.i am getting a correct value in 4mA and 20mA.the value in the middle(30 to 60%)is disturbed and i am notgetting the appropriate value.what is the solution to normalize the level and to get thecorrect value..

  7. What is duty cycle and protection class?

  8. What is power factor when in view of a lineman

  9. What is the difference between power and distribution transformer?

  10. Why generating power plant operating at above 0.9 lag? detail explaination?

  11. How to calculate the rating of airconditioner required in any area,how to calculate the cfm required for any exhaust unit or air washer unit.

  12. Why test lamp didn't glow across 500v megger?

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  14. Types of tempering of energy meter?

  15. What is the rating of power generation in india?

  16. Why Transformer in KVA?

  17. Application wise, where we should use AC motors and where we should DC motors?

  18. What is Torque Vector Control in VVVF Drives?

  19. What is the minimum IR value of 11 KV alternator?

  20. Why Ac current is alternating in nature?(or)why alternating current changes its direction?

  21. What is the power factor you maintain at ur organization?

  22. How to distinguish between ac motor and dc motor withoutseeing name plate of it.only seeing its getup look

  23. Formula for cable size calculation for current?

  24. What is the lemen of a single 5mm 13000mcd white led pls reply

  25. How you configure motorvision relay (L&T make)from DCS

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  27. What is different between Diode and Zener diode?

  28. What is kondo syatem in eletrical traction

  29. What is the need for modulation?

  30. What's float charger and boost charger? why it's used?

  31. What is the automatic voltage regulator with servomotor?

  32. If in a level tx height is given, how u calculate the rangesof the tx?

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