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 4240

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

Kirloskar,

1 5302

what is difference between power & distrubution transformer ?

3 6864

how did the differential relay work to protect the power transformer

4 11159

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

2 6467

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

2 4625

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

1 4335

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

Kirloskar,

1918

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

Kirloskar,

3 7560

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

Kirloskar,

2 7094

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

Kirloskar, L&T,

1 5602

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...

1936

why grid frequency varry time to time?

2 5235

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

1 5047

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

1 4263

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Un-Answered Questions { Electrical Engineering }

What is VCB? where it is installed at SP. What is SP?

2194

what is deffrence between squirral cage and wound rotor in IM?

1981

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

2250

What is the function of RCBO? What are the different sensitivity ratings & each application?

2831

if we have 320KVA Genset kindly advice how much load we can put it.

1540

How the annunciator works ? How to do its wiring

2312

reason of diode failure in alternator

1872

What is the diff. between single compression and double compression gland

2008

What is shutdown of electrical sub station?

2522

if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

2326

i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh

3116

Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

1689

one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..

2149

How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

2925

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

2132

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