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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Battery is a voltage source? give one example of current source and why?

Suzlon,

1667

Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

1654

For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?

1 2164

If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

1500

Electrical 'C' license full abbreviation , and full form

1961

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

1500

What happen if transformer neutral path get removed ?

1 2263

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1589

please explain to me how to calculate current,voltage,resistance with formula??

1489

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

1548

What are the raitings of Mcb,mccb and Acb in detail ??

Engineering Vision,

1670

What is icu and ics in Acb and how many time icu or ics passes from breaker?

Engineering Vision,

1617

why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

EMC,

1428

before synchronizing an alternator,power factor is leading ,why?

CUMI,

1652

we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

1521

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Un-Answered Questions { Electrical Engineering }

what is the string efficiency

5358

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

2156

What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?

2101

Draw the equivalent circuit of crystal oscillator?

1402

High speed earth switch operation with diagram

2569

Why back emf used for a dc motor? Highlight its significance.

1250

Define peak overshoot.

1326

can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...

2059

1.what is difference in maintain Hz again Hz in USA ? 2.how to calculate the battery AH? 3.why are yearly maintained in transformer how many tests in required?

2830

What is the difference between acs 550 & acs 850

5879

What is an iron loss or core loss pi?

1186

Why do we require transformer with less specific weight if supply frequency is increased?

1645

Classify driling machines.

1178

While testing a ZCT what parameters have to check or measure?

2457

Compare salient pole and cylindrical rotor machines.

1946

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