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 happens to the synchronous generator when reverse power is given to it?

1 4752

If you know per phase current and phase to phase voltage; what is overall KW of the circuit?

ABC, GAS,

1 4261

I want to measure resistance between Neutro and earth conductor for 3 phase Transformer what should i do

1 3743

which type of motor is suitable for water pump?

IIM,

1 5946

what kind of battery is used in laptops

Pepsi,

4 7899

WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 5812

WHAT IS DIFFERENCE BETWEEN POTENTIAL DIFFERENCE AND E.M.F?

2 5336

In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 4130

what are the protections in 132 kv class electrical systems.....? hw u define that in elctrical terms..? . . .pls answr

ABB,

2 4856

WHAT IS THE COOLANTS IN TRANSFORMER?

Bhel,

7 10413

WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

1870

What is meant by a linear circuit and what is a non- linear circuit?

5 8677

What is vcb?

3 5782

why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 8338

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

Asec,

2 3990

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Un-Answered Questions { Electrical Engineering }

how invertor convert the dc into ac give brif detail

2093

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1881

what is basic difference betmeen normal & flame proof motor??

2127

What is the meaning of HT Trivector Meter ?

2401

It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

3821

Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

1690

what is meant by directional earth fault and non directional earth fault? describe both.

1854

What is advantages of VSCF wind electrical system?

2288

What aturn on methods of scr?

1134

What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

2120

Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2702

I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

1675

WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

2707

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?

1965

what is meant by surge? what we called for high currents?

1957

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