Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why dc supply is given to the field of alternator

9 11878

1.why is +1+1=+2 why cant it be +3 2.Why is +1*-1=-1 why cant it be something else 3.why are the hilly areas more cooler than the ordinary areas?

ThyssenKrupp,

5 3852

can we use 7volt DC BATTERY to run a 60watt motor by stepup? Give reason for your answer?

5 3142




when will be the iocl interview results ifaced the interview on september 8 th

IOCL,

748

What is ELR, and where it is used ?

KSEB,

6 54303

what is meant by GOD in transmission system ?

Reliance,

6 8103

why motor starting current is High ?

Bhel, Jindal,

11 15678

Why fuel tanks to be earthed ?

HPCL, Ispat, Electronics, Hindustan Petroleum,

6 12810




why 400Hz is used for aircraft systems ?

Jet Airways, Cabin Crew,

14 39233

a 3 phase motor was running with delta connected, suddenly one phase winding got burnt off, what will be the effect ?

Bhel, RRB, SR,

8 10614

why 3 phase motors are preferable over single phase motors ?

6 5374

can SMPS work in DC supply ?

HCL, IBM, Reliance,

10 15077

How DC earth leakage currents can be reduced ?

647

what is the design factor that affects the size of a motor ?

Reliance, SGI,

3 3352

why ELCB's are not useful for operation theater equipments ?

Reliance,

4 5848


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Un-Answered Questions { Electrical Engineering }

What is meant by RVT and NDR ? expansion and details of it

1279


what is feeder bay?

191


redundant connection in contactor?

1192


why capacitive load is not used in routine life????any reason is there ??????

334


In what condition the HT fuse breakes?

669






please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

534


Why High voltage are generate noise ?

102


Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

891


why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)

1001


how ct burden,magnetising current,ratio and knee point voltage are related & derived

889


what is the function of statics switch in ups and tell me parts

674


WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

652


What is tranformer differtial?

546


what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

629


pls tell us AC plant are how do work and parts name with picture

634