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MCQ, set-5, Testing & Commissioning of Electrical Equipments

Electrical engineering
MCQ related to Testing and Commissioning of Electrical Equipment (TCEE)

Set : 5

41. How many types of winding connection is possible in transformer ?




... Answer is A)
4



42. Connection use for load distribution ?




... Answer is B)
delta-star



43. For 180° phase displacement which connection is used ?




... Answer is A)
Yy6, Dd6



44. .... insulation use for more than 180°C.




... Answer is C)
C type insulation is use for above 180°C



45. Not use for insulation measument.




... Answer is C)
ohm meter



46. If ten delta is quite low it means.....




... Answer is A)
good insulation



47. Standard impulse value is.......




... Answer is B)
1.2/50



48. Wave use for impulse testing ?




... Answer is A)
1/50



49. Acids in transformer oil is neutralized by ?




... Answer is C)
Potassium hydroxide



50. Dielectric strength of good insulating oil is ?




... Answer is C)
40kV/mm



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