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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how we can calculate cable size of 230v,1 hp single phase motor ? panel to motor distance is 25 meter

4 18053

In induction machine when the load increase the current will increase .why? what is the relation ship between the sleep and current drown by stater?

1 2799

can we run a motor rated 50Hz,415vac,1440RPM At higher speed then rated on name plate with the help of VFD /drive on long term basis.wheater it will effect the motor life

3 7021

In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

1 9422

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

Descon,

2302

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

1939

WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 8605

IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

10 28514

why reactive power produce in generator? why inductive load absorbe reactive power?

2 6221

what happen if generator exitation lost?

7 13280

what is the basic paramter to set a electric drive

Alpha,

1 4058

what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1927

if a number of plc s are there then how many modbus to be used

1960

1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

1 4360

what is the per unit cost of generation of electricity at thermal,hydro,desael,solar,gas power plant

1 4403

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Un-Answered Questions { Electrical Engineering }

What is the use of Surge Capacitor in LAVT?

13711

in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?

2134

what is the synchronous timer ? and it applications.

2396

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2422

Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18

2165

List examples of current sources?

1112

what is different between relay and plc?

5696

What is the difference between amorphous core transformer and CRGO core transformer?.

3741

how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

1986

Explain Creepage Distance of Insulator

2218

Why do we require transformer with less specific weight if supply frequency is increased?

1583

what happen ehen synchronisation is done at below rated speed

2149

What is the effect of positive feedback on the stability of the systems?

1086

What is a surge supressor why its is used in synchronous generators

2017

explain different losses in a transformer.

1133

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