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

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 21065

why any inductive load need free wheeling diode?

Essar,

4 8736

how to decide choke rating for drive?

Reliance,

2274

DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

Essar, MahaGenco,

2571

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

Power Grid,

8 12306

what happen when ac motor is connected with dc current

4 8266

what is the difference between inrush curent and jurk load.

2 12614

what is the pi test for current transformer?

1 7836

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 23955

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

4 8626

What is ONAN/ONAF1/ONAF2 for transformer cooling

5 64565

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 6614

what is the use of Antipumping in HT breakers.

9 23430

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

Power Grid, Vishal Transformers,

13 18969

Differance between ELCB and RCCB?

8 13470

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Un-Answered Questions { Electrical Engineering }

Why colled 440V to 3-phase supply.

2079

why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

1822

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3627

How can you sized or estimate the ligthning arrester current rating?

2081

neutral earth resistance testing is it possible for transformer while in load condition

1905

What is sensitivity of a measurement?

1087

What is real time power factor control panel(RTPFC)?

4269

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

1979

what are your career plans upon completion of the programme and the relevance of recity generation to your professional development?

2182

how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

2130

plz tell me,ht and lt panel terminals in substations explain beiefly

2886

what is the standard values(Megger test) of resistances between L&N,L&E and N&E for a system on IEE regulations?

2213

What is the difference between vector surge relay (78) and Pole slip relay (98G)

1170

What are the advantages and disadvantages of the dc motors?

1086

harmonics filter

1906

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