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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

DLF, Tata Steel Limited,

1 13713

why the stator is not laminated in DC machines?

4 16277

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

IOCL,

2000

if we convert kw into kva,which one formula use by us,pls tell me?

ABB, AEC, BGH,

19 27810

if we convert watt into kva,which one formula use by us,pls tell me?

ABB,

16 22762

if we convert Ampers into kva,which one formula use by us,pls tell me?

ABB,

10 13878

if we convert kw into Ampers,which one formula use by us,pls tell me?

ABB, Essar,

9 14306

if we convert kva into Ampers,which one formula use by us,pls tell me?

ABB,

7 11606

if we convert ampers into kw,which one formula use by us,pls tell me?

ABB,

11 19893

How to decide and select the different earthing wire size for the different types of earthing

Suzlon,

2276

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 4592

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

IOCL,

7 11054

What is transformer saturation?

1 4209

every motors written in name plate IP 55 what is this?

2 27030

what is general test conduted by transformer

Wipro,

8 14124

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Un-Answered Questions { Electrical Engineering }

What will be in Mahagenco Trade Test Exam? I want to know the same.

3695

how open delta PT works & what is its construction?

2250

State nyquist stability criterion.

1175

what is lumped and distributed elements?

1958

Difference between control junction box (cjb) and power junction box(pjb)?

4338

What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

2290

what is harmonics? what are the factors it will depend upon

2028

how to calculate the size of the HT cable

1894

Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

1931

What are the various types of rotor used in the alternators?

1071

Name two types of electrical analogous for mechanical system.

1214

In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]

1981

how to handle 2500 kva transformar

1631

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1901

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

1272

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