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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the difference bet ween EDO Type & MDO type ACBs, and what is the advantage EDO Type over than MDO type ACBs.

Siemens,

2 63305

how brushed dc motor operating ?

1892

how brushless dc motor is operating ?

4 6687

We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 6492

what happens if power factor is maintained at 0.9?give me the answer in technicall way rather than telling the penality n all

NCC,

5 10736

what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

Toshiba,

3482

What is ac and dc drive.

1 7390

What is plc.

2 5258

What is ht lt switchgear.

Bhel, HBL Power Systems,

3 32540

What is lighting kitts.

2110

Why use only DC supply to charge batteries why not AC Supply??

APC, Emerson,

3 8237

can any one suggest paper presentation topies for electrical engg?

1996

1.what is the easiest way to convert AH(ampere hour)to watts?.

2 5352

1.What will be stored in online ups EPROM IC?

IBM,

2053

1.How to calculate backup time from series connected battery of 12v dc with 26Ah for 2battery?

3 10032

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Un-Answered Questions { Electrical Engineering }

what is the value of combined earthing in general electrical circiut?

1902

what is the meaning of osr in transformer.

2145

how to calculate cooling requirement of datacentre from electrical load?

2408

What do you mean by distribution transformers?

1157

how slip power recovery system work

3025

Why corona leads to production of Ozone and glow of the color VOILET?

1969

what is self capacitance of inductor

2425

How halogen & merquery lamp works.

2156

In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

2143

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1954

how to calculate the tarriff for an industry whose kva demand is 10 mva

1983

Give two basic speed control scheme of dc shunt motor?

1102

what is per unit calculation?looking for simple and strong explanation thk u

2888

Define the overload capacity of the motor?

2049

what is the difference between skin effect

2281

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