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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

ALL HT /LT PANEL TEST? DISCRIPTION.

Essar,

26039

DIFFERNCE BETWEEN DCS AND PLC? HOW IT WORKS?

Essar,

1927

How much duration I can keep open the CT if it is under loading condition(100 Amp load)?

Infosys, NTPC, Suzlon,

3 6772

How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

Biocon,

2038

During a temperature rise test of a bus duct, it is fed with 415 volts at 2000 amperes. Why dont we get an electric shock if we touch the bus bars?

ABB, SDBL,

7 14725

how to calculate circuit breaker capacity

Siemens,

6 74731

what is the difference betweem star connected motor & delta connected motor?

13 93913

what is the CT of protection and CT of metering ? what is class 5P10 & 5P20 and class PS ?

JEE Main, ONGC, VRA,

16 130512

it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

TATA,

1972

can v rotate single phase induction motor in both the direction...?

1 4976

How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

2005

How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

1956

how can i select the cable ratings

4 6565

i want to model paper for section engg.

Infosys, RRB,

1972

what is the diffrance between earthing and grounding...?

Essar,

6 10696

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Un-Answered Questions { Electrical Engineering }

how to calculate the capacitor to maintain power factor?

2109

What are the main faults of DC generators?

2929

which is better to use svc or synchronous condenser why ?

1785

PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.

1990

While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

3505

What is primary and backup protection?

1112

what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

2098

what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?

2339

what happens when series resonance occurs?

1800

how to determine motor size for a fan application?

2240

Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

1904

State the types of distortions in amplifier?

1164

Name a govt approved university which have 100% online engineering course.

1676

Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

2102

what is PWM in IGBT and how it works for drive.?

1621

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