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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

sir can you operated Transformer on frequency from that for which is design?

Kirloskar,

1 4224

sir what is the minimun earth resistance value of an industial bit and grid bit ? and Why?

Kirloskar,

1 5291

what is difference between power & distrubution transformer ?

3 6841

how did the differential relay work to protect the power transformer

4 11137

why do we have 230v a.c. as general voltage for domestic supply rather than others?

2 6444

In transmission line the line power loss only accured at resistance the inductance and capacitance wont consume power is it correct?

2 4613

What are the types of AMF(auto main failure) panel.

1 4321

sir, Is their any measuring unit of knoking? please explian?

Kirloskar,

1900

sir, why alternator output is connected to delta side in to generating transformer? any reasion?

Kirloskar,

3 7543

sir, Two different rating of generator going to connect parallel, can it set same DROOP or different. Why? Please explain

Kirloskar,

2 7087

Sir, why generating power plant operating at above 0.9 lag? detail explaination?

Kirloskar, L&T,

1 5592

generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

1931

why grid frequency varry time to time?

2 5217

whats the reletion betweet flow,pressure,head,rpm and motor rating?

1 5044

whatis the test procedure for lightning arrester which was installed one year back. i want check it whether it is working or not.

1 4252

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Un-Answered Questions { Electrical Engineering }

Define settling time.

1175

dg earth connect only in the amf panel or not why

2094

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2544

I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com

2203

What is gross error?

1146

No load tap changing transformer working

1657

What is systematic error?

1382

If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?

5246

which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

1991

testing of Vector Group – YNaoD II

2941

difference between servo motor and synchronous motor

2333

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1891

What facility we get after CT secondary earthing and how?

2254

What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

3463

what kind of quetions will ask in BHEL in interview? Plz help me?

2118

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