Electrical Engineering Interview Questions
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The series field winding has low resistance while the shunt field winding has high resistance. Why?

83

What is the general system requirement of alternator?

50

What is a commutator?

50




What is meant by stator?

43

What are the various types of rotor used in the alternators?

50

Why do we perform an open-circuit test and short-circuit test on the transformer?

41

What is the universal motor?

50

What is an iron loss or core loss pi?

49




Define pole pitch?

36

What are the advantages and disadvantages of the dc motors?

47

What are the advantages and disadvantages of the ac motors?

48

What is meant by stator? What is meant by rotor?

53

What is a copper loss or i2r loss pc?

56

What is dielectric loss?

65

Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

44


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Un-Answered Questions { Electrical Engineering }

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

574


Starting Time of LT & HT Motor

864


Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

1180


11 kV line deraction check by an Engineer.

917


Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

665






how to decide choke rating for drive?

1265


What is big transformer parts and their function ? Ty

912


What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

1202


How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.

767


Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.

1473


why would amp draw on neutral wire be as much as amp draw on the hot leg.

971


How will polarity test of Dy5 Transformer ?

1068


How to use computer cpu ups use for home inverter circuit board

720


Who many reason of ignition fail ?

840


by what factor the starting current is used when comparing star and delta connection for motor starting?

1000