Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

The unit of electrical charge is the

1 3598

When placed close together, two positively charged materials will

1 5124

A thermistor is a type of

1 3654

A two-terminal variable resistor is known as a

1 4350

A circuit breaker is a

9 8999

what is infinite in infinite bus

GES,

4 6665

Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

2198

Which power will flow first if we switch on a motor Active or Reactive? How?

3 5583

how to calculate current when LT supply 415v fed to HT Motor 6.6kv and 1120kw.

2 12915

We all have seen transmission and Distribution lines In transmission lines the voltage is high and current is low(to reduce I^2r loss) and in distribution lines voltage is low but current is high however the size of transmission wires is bigger than that of distribution wires even though the amount of current carried by the distribution lines is more than that of transmission lines why?

4 6815

How can we have to decided motor connection as a STAR-DELTA or DELTA-STAR?

IOCL, Jindal,

3 7344

Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

ARDE,

2091

in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

1879

IN 3 PHASE INDUCTION MOTORS SOMETIMES COPPER BARS ARE PLACED DEEP IN ROTOR WHY..?

ONGC,

3 11665

how to find out three phase motr kw with out name plate..

2 4923

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Un-Answered Questions { Electrical Engineering }

IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

1899

where solid grounding and where grounding through ngr done and why?

2581

what is the star delta connetion and how can do it a three phase motor with control witing with picture

2269

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2315

What are hrc fuses and where it is used?

1187

l&t switch FN 63 handle position can we change

2559

condition Autotrip facia come on control panel of electrical transmission line?

1573

what is the difference between pvc & fiber glass cables

1564

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

3640

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

2124

explain PV modules in solar energy generation.

1928

What is the differentional relay...what is the work of this in power Tx. how it is works..

1922

What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

4032

A d.c. Shunt motor is found suitable to drive fans because they require?

1320

what is difference between isolation and ultra isolation transformer?, what is the method of testing ?

4331

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