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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How will you calaculate the Ct ratio based on connected load 500KVA,and 11KV supply ?

3 13050

what is the diff. b/w balanced and unbalanced load..?

12 53257

what is synchronous speed.? if an induction motor is made to run at full load, then is this synch. speed too..?

2 7671

why power is generatd at 50 hz only..? can we do this on another freq...?

7 9834

What will happen if we give DC supply to AC motor?

9 38081

What will happen if we give AC supply to DC motor?

4 14332

What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

2063

In case of power/distribution transformer what is percent impedence?

1 3938

If we increase frequency in transmission line in lieu of voltage what will happen?

1 5151

How can be decreased the size of transformer?

6 8473

which type of material is used to transformer laminated core?

6 13914

What is fault level?How it is calculated and how it is Expressed?

2 5201

IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

ABB,

2416

What are the special protection given for high capacity Motor, more then 10mw

2 4442

What happens if a +vely charged particle is placed in the centre of a room and assume that the north side wall is having magnetised with north polarity and south side wall is magnetised with south polarity. In which direction the particle will move

BSNL,

5 8179

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Un-Answered Questions { Electrical Engineering }

What is a DC series motor?

1294

hi frnz,can somebody give me any project work? i am a 2nd year student & interested in practical works...plz give me some projects

2058

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2118

Enlists the applications of sampled data systems?

1137

Explain what cmos is and its benefits?

1149

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..

2200

If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

2281

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

2000

What is difference between YNyn0 and YNyn ??

2640

What is meant by reverse polarity and how it can be fixed?

1313

how choose conductor&depending upon load

1962

if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

1664

What do you mean by per capita requirement of electrical energy in india

2327

what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1574

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

2211

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