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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

976

Why resistance is not measure in running conditions of motor

Falcon,

1 2052

What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

Haldia,

1267

How test for Ddo vector group test condition?

1747

what do you mean by power factor ? in new view

BDL,

3 2939

Why the pointer of earthing of 3 pin top is made thick and long compared to the phase and neutral pin ?

Sanima Hydro Power,

3 2526

What is mean 2XWY

Wilo,

1718

How to calculate Voltage regulation of 22 KV Over head Line.

1020

Actually why the transformers are rated in KVA.?

BSL, Engineering,

4 4291

How Can Be Size Of Transformer Corelate With Freqvence?

Essar,

1 1586

Is a current transformer step up or step down ?

2 2382

what is PWM in IGBT and how it works for drive.?

BRG,

1035

In transmission line 11kv,33kv etc are rms values are peak or others??

1 5076

What is transformation ratio what it describes?

Cushman Wakefield,

1004

How i can calculate the cable size for given load,there is any formula,for 3 phase and single phase

Prescient Technologies,

2 2167


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Un-Answered Questions { Electrical Engineering }

BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

1692


What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1745


How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

4768


Is MEN and RCD related to each other ?? IF yes then how??

1297


how does commutator convert a.c to d.c?

1582






What is the power factor of an alternator at no load?

609


Cb closed condition if there is a tcs fail whether cb will trip or not

1068


What is the tube exial fan?

1480


What is MS-EXCELL?

1475


I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE

1321


what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

1243


PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2117


hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u

1343


how generator avr give to the input?

1292


What is the capacity of the Fastners 12mm?

1687