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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how can i get the entrance exam papers

989

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

3 4810

Thumb rule for capacitor bank calculation

1 7788

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

1 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

BMRCL,

7 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,

1 4187

How can we do megger test of cable??

2 8125

why induction motor's p.f 0.8

Suzlon,

1200

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

3 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.

Power Grid,

2830

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

Power Grid, Powerica,

4 4279

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

1 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

3 3272

how to check capacitor in general

1 2724


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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 norton’s theorem?

210


What are the advantages & disadvantages of a group electrive drive?

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