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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why to use 50hz only in tansmisson and as well as in distribution why not60hz?

2 2704

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

L&T,

1 2637

how dc generator produce voltage initially?

Bisleri,

1 2288

the single phase voltage is 230 volts and threee phase is 430 v.why three phase is not 660 v?

2 5969

which relay is used for both detection & correction?(there is only one relay)

2 2740

the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

L&T,

5 5822

wath is this mining of bts

Nokia,

2 2894

wath is this mining of dg

Nokia,

2 2697

wath is this mining of bts

Nokia, TATA,

1322

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 2530

What are HT & LT Cables? What are their values?

IOCL,

3 4188

What are armoured cables?

IOCL,

2 2817

What are the layers of protection over armoured cables?

Accenture, IOCL,

3 3333

What are insulation classes? Tell examples of each of them.

IOCL,

1 2672

What are the different types of circuit breakers?

IOCL,

3 3718


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Un-Answered Questions { Electrical Engineering }

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

556


Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1064


Do you know what is dry-out test in x'mer

1709


How isolater function when installed inelectrical 440V wiring

1166


what is the standard duration after failure EB power

900






take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????

1337


How servo stabilizer works.

1169


Percentage losses in power generation?

2084


What is step signal?

187


how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

1182


difference between the applicability of nortons and thevenin theorem

1072


What is the effect of solar radiation on the design of an Isolated Phase Busduct?

1371


Define relative stability.

196


how ceiling fan worked?

1030


what is the electrical?

1193