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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is Grounding?

2 5336

how u change the vector group of a transformer like DYN1 to ynd11

2 6213

What are the types of circuit breakers ?

Genco, Super Max,

6 8828

Merits & Demarits of Oil circuit & Air circuit breakers ?

Genco,

2125

Two CTs 1600/1 and 35/1 are in series. while checking the ratio test of a CT(1600/1),same 1600A will also pass through the CT having ratio 35/1. Will it be harmfull to the ct(35/1),if yes , what will happen.CT secondary is shorted

3 7369

what is the function of Droop CT and where it is used?

Lanco,

3 35462

In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 16991

Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

2 4207

pls define kvarh

2 6319

What is Grounding? any difference b\w earthing? if yes plz explan??

ABB,

3 7977

What is HVAC, PLS SEND DETAIL OF hvac.

6 8794

WHAT TYPES OF OIL(STRUCTURE) ARE USED IN POWER TRANSFORMER INSULATION?

4 6823

why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 29228

what is the pperating squvance in transmission line for circuit braker, isolater & earthing switch.

2 4820

what will happen if i connect or change line with phase terminal

1 3705

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Un-Answered Questions { Electrical Engineering }

Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha

2219

What is the difference between security constraint unit commitment and security constraint optimal power flow?

1757

DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

2315

WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

2304

Which motor will you choose which can operate in both lagging as well as leading power factors?

1211

what is a synchronizing lamp ?

1726

i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...

1874

how we can calculate the efficiency of a diesel generator ?

1758

how to select proper cable for ct wiring so that drop within the limit.

2031

why did youi choose this career?

2252

How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

2428

What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

2464

What are marginally stable systems?

1138

How many VSC based HVDC are there in India and the world

2279

What is expention fastener (Fan)

2087

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