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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

difference between ac motor and dc motor

 5 18297

why aggregate is placed all around substation ground.

 9 12699

whats is MARX CIRCUIT?

 1 9193

What are the earth resistance Standards of 66kv sub stations according to indian norms.

 2 3417

what will happen when a bulb s connected btwn two phases of a three phase delta connected source?

 6 7621

why ac supply neutral should earth not in dc (-)

 2 5752

Which Kind of machines(in terms of poles) give the smoothest DC

 1539

Which type of gas used in cylinder (VCB)?????

ICSA,

15 20617

If I want to use capacitor banks at HT (11 KV) side for maintaining power factor then which type of capacitor should I use? Plz give me the specification?? (I am using 1250 Kva transformer (11 KV/433V)).

 2 9828

how to calculate lux level in out door (yard lighting) please expalin with a example

IVRCL,

1 5066

What is the major difference between cnc and plc. why cant we use plc instead of cnc

 5 36668

What is difference between ball screw and lead screw.

 2 8582

selection of conductor in different voltage?

TATA,

1 2838

What is the most accurate way of testing ELCB?ELCB is better than RCD?

GECO,

2871

what is MFD value in capacitor?I have 201 Kva load & reactive power is 150 Kvar. so how it is calculated?

IIT,

2 8341

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Un-Answered Questions { Electrical Engineering }

why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

1106

Why is remote backup preferred to local backup?

1481

What is the significance of integral controller and derivative controller in a pid controller?

626

What does the term power factor shows?

593

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

2014




(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

1581

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.

1406

Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?

606

What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

1384

WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB

1949

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

1721

Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?

1727

if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain

892

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

1548

What is bridge rectifier and explain with details

1478

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