Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why does the power consumed is always constant even if a fan speed is altered?

5 17067

WHAT IS THE DIFFERENCE B/WDYNAMO&ALTERNATOR?

IOCL,

6 5618

lllg,llg,ll,lg,lll which fault is severe and why?

GE, PSC, COEP,

10 47450




why we use ac?why we use dc? why we we cannot use only ac/dc for all the applications?what happen if we use?

988

what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

HPL,

1 3985

What is technical difference between ELCB & ELMCB?

3 19563

how was the induction stove working?

3 3161

hi i m going to attend bhel interview on 22nd sep 2008 for ET(electrical engineering).pls guide me how to prepare for the interview.i am a fresher.

Bhel,

1 2354




Explain the working principle of Vacuum circuit breaker and Air circuit breaker

HP, Trinidad and Tobago Electricity Commission T TEC,

10 40322

Why not using Air circuit breaker at High tension side?

Wipro,

1 1584

What is diference between ELCB & ELMCB?Also how its application for use in design area?

2 12198

How can w select the cable size for different rating load & also waht r factors affecting the during selection of cable?

Bosch, AB Inc, BRB Cable, Lucas TVS, Trisome Technical Services,

11 27833

wht is this amps in power consuption and how can we convert that into consuption hours ? i am a sales executive of a energy saving lamps .

KSEB,

5 3793

wht is the difference between volatge and wattage ? how can it be converted ? (like 15w = 6v ) like tht... ? actually what tht means ?

3 3483

what is the fullform of mccb

Thermax,

10 13713


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Un-Answered Questions { Electrical Engineering }

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

1006


Why are the cores of large transformers built up of circular transactions ?

736


what is the difference between STAR and DELTA connection and application wise how it can be utilizedd

981


Why single phase induction motors are not self starting ?

303


how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021

750






explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

1195


how to ctrl motor by use of ac or dc drive.plz explain evdintly

722


what kelvin's law ?

743


How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?

518


what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

1012


in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.

1007


What is the working mechanism of OLTC in Power Transformers????

3183


Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage

507


what happens if earth of 33kv cable is not connected to earthing pits? please send this query's answer to ngrm.sudha249@gmail.com

810


How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

434