Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between high impedance & low impedance

L&T,

1 3910

how to converate kva to kw ?

4 5582

For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?

DPL, NTPC,

5 6629

can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

1368

What is the criteria for deciding whther fire wall is required between two power transformers

1 3186

Why we have use 3 & 1/2 core cable use for general electrical supply arrangement

1 3269

What happened when the field winding of dc series motor is open?

Bhel,

2 3741

What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

NTPC,

1 9035

how to differentiate a mpcb,mcb with a contactor? Explain their working operation

L&T,

1636

How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

1409

what is the function of avr when synchronous generator act as synchronous motor

1 3161

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1369

why are u join ntpc

NTPC,

1717

why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

Descon,

1670

I have calculated load for an office building which is 1200 KW as all the load is single phase therefore its 1200 kw single phase. Now i have to design Transformer and Generator for this load Please kindly give me exact answer that how much capacity of Three Phase Transformer and Three Phase Generator is required for this load.

3 5209


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Un-Answered Questions { Electrical Engineering }

sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

1761


when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

1566


Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

1671


in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

1354


Differentiate between kirchhoff’s first law and kirchhoff’s second law?

598






why ten delta testing is carried out on power transformer

1348


How to back charge the Gas turbine generator

1609


What is the drawback of class b amplifier? How is this minimized?

658


how the testing of protection CT Testing done through Primary injection kit please describe in detail procedure...

1784


sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1393


I have a situation to design sub-Distribution board/Panel meant for feeding power sockets. In the incomer CAN i Take TP MCCB with Neutral Link and All the outgoing feeders with to sockets with TP MCCB and Neutral Link? P.S : My System is IT Earthing

1301


what are the factors to be considered while design the breaker either HT or LT??

1395


how to calculate units consumption for a 12 hp motor /hr.

1025


What is meant by Load Encroachment in OHL Feeder Protection?

3099


what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?

1908