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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)

GE,

1 5100

in which direction real power and reactive power flow and why???????

3 10239

WHAT IS MEANING OF VECTOR GROUP FOR TRANSFORMER

2 13612

Explain the operation of damper winding

2 5441

can we use ELCB and RCBO in one db

6 9410

what is vtg limit of earth and neutral at transformer side?

IOCL,

1999

Which element has power dissipated in it when the source is removed ?

SSC,

2 5300

Transmission through a short line depends on

2216

Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series

1 3426

Which of the following can be operated at higher frequencies ? -SCR -MOSFET -IGBT

4 6379

Latching current is slightly less than ?

2 4385

Which of the following plant has less plant factor ? -Nuclear -Hydro -Diesel -Pumped storage

1 3425

Capacitors are used to ... -Reduce the bill of the farmer -Improve the PF

1 3650

At no load the PF of an alternator -Zero -Zero Lagging -Zero leading -None of the above

2 5278

Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

1876

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Un-Answered Questions { Electrical Engineering }

how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

2225

i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

1894

What is the ideal position cooling fan inside the dc motor?

2061

What is the size of a 60 watt and 80 watt tubelight?

2134

What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?

1056

WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

3449

wheather the size of windings in motor and generator are the same

1984

which book to refer in electrical engineering for iocl exam & which book for general english.

2207

'documenˁ

1934

Hi, My plant daily consumption is calculated as 3.8MWH but my supplier has sanctioned an power of 2.6MW per day. how can i equal or distinguish this two factors

1870

what are the problems that generally occur in power flows??

3186

how to handle 2500 kva transformar

1596

it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

1981

In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...

1995

if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

1954

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