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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how can we chack a capacitor in acircuit

2 4097

how can we chacke adiod in a circuit

2 3439

what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????

Reliance,

1 4584

what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

Reliance,

1713

what is power factor ?

KSEB,

12 14340

difference between ac and dc generators

4 7257

name 3 measuring instrument used in transformers

4 5267

what is JE exam?

1501

I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 9328

what is the disadvantage if earth is connected to neutral

6 9773

If we connect the capacitor banks for DG set for maintainig the power factor, it will effect to alternator windings??????????

7 9054

How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 23449

In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.

1 2165

whatis the difference between electrical and electronics?

11 12096

Hai I have 2500KVA,Transformer,13.8KV/380.DELTA/STAR.How much load that I can take interms of current?How can I calculate also when I have loads in KW?

L&T,

10 14275


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Un-Answered Questions { Electrical Engineering }

I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com

1547


what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

1187


What is process of anneling transformer core

1248


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

1818


how to generator maintenance (A Check, B check,Etc)

1601






what is the use of vcb & isolator in substation?

1706


how we sesign the transformer give some specifion regarding design of transformers

1287


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

1387


In EB metering we face problem kva jump even in no load condition.can any one help to control this

1209


what is conductor constant of raccun conductor

1547


what is booster? and how it is connected in a circuit?

1851


How to design pavement quality concrete by using C.R.C.P Method

1106


What type of pipe material G.I or M.S is used for sprinkler system?

7981


What happened when capacitor connect series in ac circuit?

771


- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2070