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 between air & vaccum circuit breakers?

IOCL,

2 6730

What are the components of a substation?

IOCL,

3 6430

What is ELCB?

Bhel, CDS, IOCL,

9 13887

How voltage step down is done?

IOCL,

3 6139

How does a 3 phase induction motor is started?

IOCL,

3 7259

can anyone tel me what is competency of electrical supervisor??

ONGC,

2 4762

minimu size and length of gi earth pipe

2 4756

we have consol make 3 phase servo stabilizer for cnc m/c. while installing the earth neutral voltage is 1.7 volts at stbilizer off condition and when stabilizer get on en voltage reaches 4.8 volts (new earthing is done and neutral is helthy condition all phase to neutral volts 440,442,441 v)why this happen.solution for cause.

3 6982

how to calculate the over current rating of 3phase motor

2 6839

why sec of ct should be kept shorted

Enercon,

2 6292

difference between isolator and circuit breaker?????

Enercon,

7 13338

how to improve IR value in HT motors?

ABB, AMW, Macleods,

3 17402

Why we are using air gap magnetic condutors

Ford, IOCL,

2 6629

I want to know how to calculate the size of electricity cable in building?

DR Engineering Services,

1968

whether Transformer is singly excited or doubly excited machine?

2 9158

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Un-Answered Questions { Electrical Engineering }

salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers

2042

WANTCONTACT NUMBER & EMAIL/ WEBSITE TO CONTACT THE SECRETARY,MADHYA PRADESH LICENSING BOARD(ELECTRICAL),K- BLOCK,3RD FLOOR,SATPOODA BHAWAN,BHOPAL

2030

What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

1635

what are the preventive maintanance actions taken for air circuit breaker? please answer me

1998

In siemens PLC, why do we want to move the data ?

2278

What is an 86-P or an 86-A trip

2035

Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

1098

how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

1926

How to calculate the Efficiency of Chiller

3296

Differentiate between magnetic field and magnetic flux?

1094

the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

2174

what kind of quetions will ask in BHEL in interview? Plz help me?

2073

How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

2073

If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.

1918

what is stper motor

2376

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