Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 4878

in a induction motor if we put capacitor across it will the power factor of the motor will improve? if yes how

Reliance,

6 9994

What are the saftey parameters in transformers?

2 6539

Can without battery on line UPS,off line UPS or Invertor works please brief.

5 10427

what is the differebt between ac and dc fuse?

IBM,

2279

wat is d first thing to be seen 2 lay a cable in a particular area??

1 3425

what is mean by current? and voltage?

4 7422

in transmission line 11kv is step up or step down? why?

5 13988

why tan delta test conducted in electrical equipmenr

4 12919

is there or does RCCB work for single phase connection?

2 6317

whenever a squirrel or a crow gets tangled near the out put of the feild transformer there is a discharge of 440 volts of current through the neutral due to which my appliances blow up causing a huge bang.will the RCCB help in these conditions

1 3116

why we are using star connection and delta connection? difference?

5 18318

In 400KV Switchyard, we have used Circuit Breaker With PIR, what is the significance of PIR & why they'r used?

2 20463

how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

Birla,

2249

What is the difference between rulling span and wind span of of an Over Head Transmission Line?

2284

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Un-Answered Questions { Electrical Engineering }

why does a dc machine has high efficiency while working as a generator than as a motor ..

1959

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2261

What is lighting kitts.

2064

What kind of preventive maintenance are there for transformer?

2223

How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?

2114

What is an Air COmpressor

2201

1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

2267

Do closed loop systems require manual input?

1115

what is the voltage between earth & neutral in 3 phase electrical connection.

1907

what is the basic construction diffrance between servo motor ans sqiralcage induction motor

2430

How we can calculate the life of Lead acid battery

1734

what is the difference between 2 way and 4 pole selector switch???

2387

Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

1891

what is proper capacitor placement? How to evaluate capacitor size?

2083

why are u join ntpc

2108

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