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Interview Questions for Freshers, Trainee, GET, Site Engineer, Manager, Electrical engineering (Part-2)

Er. Parbhakar Dwivedi
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22. Why AC systems are preferred over DC system?

23. What is the difference between single compression gland and double compression gland?

24. How you can calculate the load requirement of building?

25. Why the cable size enhances as we move away from metering panel?

26. What are the various kind of cables used for transmission?

27. What is starter? What is difference between 3 point starter and 4 point starter?

28. Explain different losses in a transformer?

29. By costing head which is more economical DOL starter, star delta starter, VFD base starter or soft starter?

30. What is the minimum thickness of cable tray which you deployed in your projects?

31. Explain the application of storage batteries?

32. Where FS cable is required in building services?

33. What role automatic power factor correction panel is electrical scheme and where it is deployed in schematic?

34. Describe methods of improving power factor?

35. How many wires are allowed in electrical conduit of 20mm, 25mm, and 32 mm, conduit as per NBC guidelines?

36. What is the main factor of electricity fluctuation?

37. What is minimum permissible value of earth resistance for housing and industrial appliance?

38. What is the difference between generator and alternator?

39. Which types of motors used in fans?

40. Which types of motors used in refrigerators and cranes?

41. What is suitable transmission voltage?

42. Which oil can be used in transformers? What is the rate of the oil?

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