Electrical Engineering Interview Questions
Questions Answers Views Company eMail

for distribution line ratio of x/r 1.<0.1 2.>10 3.>1 4.<0.01

HAL, HPPSC,

3 14456

why any inductive load need free wheeling diode?

Essar,

4 5046

how to decide choke rating for drive?

Reliance,

1004




DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

MahaGenco, Essar,

970

IN bateery size of positive is biger than negative .why?

Power Grid,

8 6341

what happen when ac motor is connected with dc current

4 4480

what is the difference between inrush curent and jurk load.

2 4991

what is the pi test for current transformer?

1 5974




wat is the difference between real power and reactive power..which is useful..?and how it s useful..wat is the effect of these on a power system...

ABB,

10 16396

why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation

4 4852

What is ONAN/ONAF1/ONAF2 for transformer cooling

5 47496

In tranformer winding Connection Like Dyn1 ,so LV lags Hv by 30 deg and Dyn11 LV lead HV by 30,so how do this lagging and leading afffect the transformer??

Siemens,

2 3701

what is the use of Antipumping in HT breakers.

9 17487

like the transformer another electrical static device which operate on same priencipal?

Power Grid, Vishal Transformers,

13 10207

Differance between ELCB and RCCB?

8 7925


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Un-Answered Questions { Electrical Engineering }

checking procedure of capacitor based motors.used in fans etc?

813


I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

735


I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

579


Can a generator runs after getting 1st stator earth fault.

200


for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.

955






i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

730


Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

701


Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?

763


ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

866


how slip power recovery system work

1537


when a pure dc signal is sent through a moving iron meter, what will it read?? dc or rms?? when a variable dc signal is sent through a moving iron meter, what will it read?? dc or rms??

852


what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me

801


my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

59


can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

587


What is the tube exial fan?

682