Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the PIU.


1 880

PIU how does work?


What is the Power Plant.


5 3182

How many types of AC current?

8 12369

As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??

5 2939

what is the function of NAT & NAC contacts in breaker control switch (TNC)??

1 13438

what is the difference betn earthed and unearthed cables which is commanly used why?

Bhel, Power Grid,

2 4806

In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?

2 7979

I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 3226

In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.


what is the higest transmission voltage and generated voltage in india

14 20770

I want to know the standards for earthing system as per IEC, BIS & IEEE.

2 12644

Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.

Engineers India Limited,


what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes


10 44822

What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?

ABB, Power Grid,

3 24481

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Un-Answered Questions { Electrical Engineering }



Z transform is use when system is not a) converges b) diverges


why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?


can we synchronize star system generators with delta system transmission line ? and how ?


what is meaning of bus riser


how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer


What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?


Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.


CBCT selection


kindly send me 11KV MV motor differential protection procedure by primary injection method.


how to find the capacitance value of the motor while running??


what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....


What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks


According to conduit size which size wiring & how many wires can we provide wires in conduit & how can we select conduit size accordingly?


what is the Transformer Impedence?How can calculate?