Electrical Engineering Interview Questions

hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

1889

why no load characteristics of generator also called as occ

4352

why occ characteristics of generator is also called as magnatization characteristics ?

1553

Why LVDT have secondary windings connected in differential 1. Higher out put 2. Based on the out put voltage-/+, helps to identify the direction of displacement 3. To establish a null/ reference point

5317

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

Bhel,

1630

what will happen if we double the input frequency of a transformer keeping the voltage constant?

22667

TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

Bhel, NTPC,

5007

i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?

4494

why power dissipation is due to low frequency?

3128

why we don't discuss power facter in dc?

7406

the resstance of a thermistor is 5000 ohm at 25degreeC and coefficient is .04/degCel. A measurement with lead resitance of 10 ohm will cause an error of

GATE,

3189

6083

What are the various reasons for an inductin motor to get heated?

3463

name of good resistance material

3255

How to measure corona loss in a transmission line?(Plz ans only if u know the exact answer)

9002

Un-Answered Questions { Electrical Engineering }

How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

1690

how to calculate singlephase motor efficiency?

1779

1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?

1713

What is the main purpose of c.f.b.c.boiler

1302

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

1677

Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.

1480

686

Why magnetic flux produces an induced current?? what is the detailed procedure ?? ans plz

3305

how to determine the inrush current of a transformer

2148

explain all the classes with example

1533

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

2393

armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

1675

A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?

1572

orifice sizing how done, checking & selection

1429

If ROC does not lies inside unit circle,then ? a) Fourier transform converges b) Z transform converges c) Hatly transform converges d) Colpit Transform converges.

1892