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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

considering the 3phase and single phase ac system the load applied and the volage given is same...will the current differs for both the cases are it wil remain same?

5 3972

differentiate between one way two gang switch & two way one gang switch, used in designing the loads of building.

1 3011

What is the meaning of insulation leavel LI 75 AC 28 About scott transformer spcification

1 15334

If the Supply voltage is increased by n times, the cross section of conducter will [increase/decrease] by ________ times ?

4 8678

The Source internal resitanse Rs , When equal to Load resistance RL, the maximum transfered is of _____ % of input power?

2 5640

The Frequency is measured by _________ bridge ?

3 5571

In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?

15 15820

why the secondary winding of the transformer is not open circuited ?

Nepal Electricity Authority, Torrent Pharma,

5 7868

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

1411

Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB

1797

Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

Adani Power,

1255

v=I*R, i.e V is directly proportional to I. now P=V*I. so V=P/I. thus v is inversely proportional to I. so what is the correct one? If both are correct than for which kind of condition this 2 differ

3 5093

what is meant by leakage current of a capacitor?

1 4098

why we use lamination or layer by layer cor used?

4 3575

what is the difference between indoor & Out door substations

HSBC,

5 22596


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Un-Answered Questions { Electrical Engineering }

what is difference between cpp electrical system and refinery electrical system

1258


1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

946


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5124


Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

1094


why there using acb enclosure in big buildings

1016






Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?

206


how we can calcultae the short circuit level for bus bar

1328


I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

965


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?

950


what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1206


what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

2615


How calculated single phase induction motor req. Capacitor?

648


difference between high and low impedance BUS BAR relay??

565


Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

212


What are the specifications for getting approval of Substation?

1010