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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

In legging current reactive power is arise but in leading current which power will be arise ? and in this case, is active power more than rated ?

3 3318

I Have 100Ah battery with 650VA Inverter, i WANT TO TAKE a Solar panel to charge my battery, so please suggest me,what rating of solar panel(with solar charge controller) can buy for a load of 450w for 4 hours

Chevron,

1 4049

What is Star Delta Connection, where it is applied & what for it is used

Premium Transmission,

4 4522

working method of railway electricl loco in single wire 25000 volt

1 2689

A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

2 2284

DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

GE,

6 4590

in shunt clippers why a resistor is used in sereis with the input

1090

How would you relate your key competencies to this position?

1244

is it possible to start a motor in felid connected to a remote mcc

BIET,

994

why is used for starters for staring motors?

Amrapali, L&T,

6 5932

why is fan rotating slow speed, what is the problem?

4 4894

1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.

ICS Integrated Computer Solutions,

1352

why battery dc voltage become Half when we check with respect to ground for example 120volts + and - terminals and when we check + terminal with Earth thats 60volts why 60volts same result on 24Volts and with ground 12Volts only expert answer that thanks we can not ground the battery.

Etimaad,

2 3229

In a incandescent bulb, if the glass is punctured, and then power is supplied, the tungsten filament blows up with a flash.Why?

2 3283

xlpe cable 4 core nuetral wire is small why ?

3 2935


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Un-Answered Questions { Electrical Engineering }

What is limitedly stable system?

194


what is the condition for YnD11

1593


3phase cable calculation formula by motor load

550


how we will deside the high voltage value

1028


What is PEC??Applications........

1050






In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

2336


State the methods of improving power factor?

207


sir pls send the je exam - 2008 and other model question papers..

1200


WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

3245


Please send 110 kv sb station full single line drawing(sld)

1656


What will happen if i used 11KV earth ht kit to 11 KV / 11 KV cable termination?

552


describe the Operation of induction generators from bus bars

1332


my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1031


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

1133


Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

2858