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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is brushless alternator?

1424

Can the same motor be operated in both direction ?

12 11014

why transformer donot allow the dc?

ONGC,

17 19060

what is skin effect? why is it absentin dc system

22 34954

why free wheeling diode is connected across inductive load

NTPC, Omaxe, Wipro,

16 47110

what is a relay?

31 18033

how electronic energy meter works?

12 51370

I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions

Wipro,

1239

what is linear motor?

Lucas TVS, wbsedcl,

2 7431

In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?

4 8018

what is the function of commutator in dc motor?

Aviation, HP, Raj Construction, TCE, University Exams,

52 154314

what is the significance of per unit impedance ?

HP,

7 13096

draw waveform of capacitor or inductor in a d.c ckt(during transient) with zero resistance with it(in series or parallel)also neglect resistance of wire

L&T,

2 9038

why C.T secondary are rated 5A generally?

ABC, Bhel,

13 37876

Resistance of a conductor in a close electrical ckt is practically zero why?

1 5016


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Un-Answered Questions { Electrical Engineering }

how is the incoming cable size calculated for a given current rating of a panel??

1028


control & auxilary circuits used for circuir breakers

1082


how to design coil turns ?

1157


am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

960


why do we have spikes enough to burn electronic boards, when generators are not grounded

900






Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?

2513


What is essential to prove safe isolation of electrical circuit?

244


What is cross over distortion? How it can be eliminated?

285


what is mean by D.O. in distribution line poles?

549


What do you mean by Frame 5 Gas Turbine as well as Mark II.

1639


What are the material used for resistor?

230


we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

1169


What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

1163


How wire size can define in electrical wiring? What is the ratio?

1371


bsnl tta exam question

1079