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Electrical Engineering Interview Questions
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if 400kv line is connected to the load but neutral ii not be connceted then wt ll happen

 1 3045

what is gapless metal oxide techniques?

 1 2578

why generator is star connected ?

Voltech,

3 17672

I have a 33 KV sub stn with two mother transformers 33/11 KV of capacity 3150 and 1600 KVA respectively. The total connected load 16809 KVA(11/0.433KV).how i calculate the max current & how i decided the CMD.

 2 2369

What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?

MES Military Engineer Services,

1564

Application wise, where we should use AC motors and where we should DC motors?

Nespak,

1 3179

eddy current losses depends on?(a-max magnetic feild,b-avg magnetic feild,c-on frequency,d-on square of frequency)?

Ecil,

3 4283

For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

Ecil,

2453

Sparking occur when a load is switched off because the circuit has high – a.) Inductance b.) Capacitance c.) Resistance d.) None

Ecil,

3 11417

how do we calculate cable sq mm size,that if 50 A load

GTL, PowerTech,

2 4197

can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

NovaTech,

1433

VCB in closed position during opertion if vaccume break then what will happend? it has any protection ?

 1 2721

For Eg a 30 kw motor at full load how much kw it takes And at no load how much KW it will take?

GEPL,

1 2539

For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?

GEPL,

1497

At full load wat is the motor p.f And at no load will is the motor p.f?

GEPL,

1655

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Un-Answered Questions { Electrical Engineering }

Load break swicth maintenance procedure.

1252

Why Neutral Isolation is required?

1754

how does WTI work ?

1425

when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)

1463

in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

1781




how does high earth to neutral voltage affects electronic circuit?

1203

why do we put a transformer on soak before loading it

569

What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?

1461

what is the meaning of vcc

1803

How line capacitance & line inductance varies with increase in height tower.

1791

DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

1530

placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!

1591

what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

1505

Why back emf used for a dc motor? Highlight its significance.

593

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

1407

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