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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

State the difference between Surge Arrester and Lightning arrester,Both are same or not?

7 38675

please mention the minimum IR value for different voltage systems

6 8564

which types of tests are required after commissioning of 6.6 kva tranformer?

Reliance,

3 6398

What is battery Limit ?

NDDB,

4 24817

Why electrical heaters are not provided with overload relays in circuits

1 4863

In transformers Which type of connection is preferred for harmonics to be minimum. primary : secondary star without neutral:open delta star with neutral :open delta star without neutral: delta star with neutral : delta explain why

Genco,

1 5073

The exciting current of a transformer is non sinusoidal. why?

2 11182

Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 14812

Give the selection criteria of a 3 Phase transformer for industrial purposes ?

NDDB, TATA,

5 12068

what is the difference between between open delta and broken delta?

Reliance,

5 28455

can any one provide some material?

1 3502

what is the requirement of commutator in a universal motor?

3 5544

Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader

8 24177

Why Neutral Earthing pits and body earthing is interconnected

Taj Group,

3 15352

Why Earth pits are inter connected

Airtel, Taj Group,

8 20580

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Un-Answered Questions { Electrical Engineering }

how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

2083

What is the transfer function?

1043

hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

1888

what is difference between isolation and ultra isolation transformer?, what is the method of testing ?

4288

What is bode plot?

1189

can i connect wavetrap in 2 different phase in EHV line?

1795

I'm looking for a mnaual set for a Teradyne J750. Softcopy would be preferred but I'll take what I can get.

2159

Is vtg is controlled by the resistor? if else how much?

2046

what is cathodic protection and why it use in industries?

2250

If UG power cable both ends are to be earthed or what? If not why?

1892

if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2503

Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

1633

Why different Pressure switch used in marine boiler water circulation system

1727

Define what is difference between fuse and breaker?

1123

How many types of probe used in cro?

1163

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