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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the meter used to check the DG sound level.and pollution check

2 3814

What is the permissible sound level for 1000kva DG set and how the sound level is calculated.

1 2246

why rotor winding in induction motor is not earthed. normally we uses star winding in rotor .why?

Anglo Platinum, TATA,

3 6494

why do we not use equivalent voltage source in negative sequence equivalent ckt.

TATA,

1267

Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha

1314

Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

1187

PLease anyone can tell me CTUM-15 specification?

Gilbert Maxwell,

1 10020

Define protection core in CTs Ex. 5P10, 5P20 etc.

HPL,

1 3980

For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 12890

what is difference between tension tower and suspension tower?

8 35798

which transmission is cheaper ac or dc?

10 7308

what is 400kv doble circuit quadpole tower?

1076

what is S.D.F stands for ? (S.D.F unit 80 amp , TPN )

6 17828

What is best method of Calculating Short Circuit current in power system network.

1 3358

What do you mean by cold shinkable cable joint.How it is done.

1114


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Un-Answered Questions { Electrical Engineering }

why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1161


Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com

1031


which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

1088


If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!

1049


What is your acheivements

1223






how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

1134


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

1368


what is allowable ac mixing in dc

1184


What will be the current if the resistance total in a series circuit doubles?

270


what is magnetizing current test in power transformer

1804


in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

1072


What is the formula to calculate the rating of a three phase air circuit breaker

1398


What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

1507


Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1099


difference between high and low impedance BUS BAR relay??

632