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Electrical Engineering Interview Questions

how can i get the entrance exam papers

989

in an industrical wiring, why we are using lighting DB and Power DB separately?

4810

Thumb rule for capacitor bank calculation

7788

what is the mazor difference between the induction transformer and synchonous motor?what is the similarity between them?

3051

heat can flow from a body at low temperature to a body at higher temperature only when ........ is supplied from an external source A). Voltage B). Current C). work D). Mass

5439

What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?

ABB,

4187

How can we do megger test of cable??

8125

why induction motor's p.f 0.8

1200

In India why is the supply frequency 50hz? I need a particular answer for it..

4016

how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

1229

what is saturation kit?which use above 15 kw motors panel side.

2830

which type of harmonics minimum produce in 12 pulse rectiformer transformer? a)3rd b)5th c)7th d)11th

4279

what is the speed of a turbine in an hydroelectric power station and how many poles does it have...?

2326

11 kv metering is done in my factory.Meter show PF 1.000 but kvarh lag&lead show 24&94 respectively & Avg.PF is .956 .? is what i do for inproove my PF to 1.000

3272

how to check capacitor in general

2724

Un-Answered Questions { Electrical Engineering }

State the factors, for the choice of electrical system for an aero turbine.

192

In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?

1318

What is the function of retrip in busbar?

578

what is through fault?

1224

what is the acceptable limit value for Desolve Gas Analysis/

1012

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

1271

Dry type transformers

906

State nortonâ€™s theorem?

210

1236

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

834

Explain what is rated speed?

170

What are the advantage of free wheeling diode in a full wave rectifier?

172

The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

997

In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

1208

what is the requirement regarding earthing of Single conductor with AWA

1192