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 many homes can a 500kva transformer supply in S.A

1 14389

how we will deside the high voltage value

1926

why it is mentioned as 8/10 mva transformer why not directly 8mva or 10mva transformer. please explain me the full detailed reason.

Qatar Gas,

4 9159

What is disc insulator and it's application..?

2 4007

What is Long rod insulator and it's applications..? merits over the disc insulator ..?

1869

How to find earthfault location in long cable layed underground or outside.

3 5623

In single core cable, Why non-magnetic material is used??

1 2893

what is the mean of"turbo" in turbo alternator???

CCCL,

1 5335

Hi,iam a diploma in electrical engineering.rtd from indian air force in apr 2007.prsently working in reliance next link as a network maintenance engineer since 2007,can i get a job in motherson sumi.

Motherson, Motherson Molds and Diecasting Ltd.,

2332

If increased the frequency up to 1000 then what changes shows in voltage?

2381

what is the difference between synchronous motor and induction motor?

3 6270

in 11kv/400v transformer when only one phase of 11kv supply fails what happens to sec voltage and why

6 16075

In a 3 phase induction motor(without connecting supply) if we rotate its rotor by hand and check resistance of stator winding at motor terminal box its resistance varies why ??

Jindal,

3 6471

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

1983

How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?

2217

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Un-Answered Questions { Electrical Engineering }

In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

1929

Pl. give me checklist for installation & commissioning of machine tool.

2253

Explain and give examples about VCB?

3273

Define norton equivalent circuit?

1005

Explain few advantages of electric traction system?

1077

What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

1629

Why an ac systems are preferred over dc systems?

1061

Explain how you intend to work under pressure to meet up with deadline target?

5187

do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

2033

why -48 volts dc used in telecommucation

2562

How many types of faults are there in 3 phase power system?

1047

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

2291

What is a parabolic signal?

1113

Y phase plates are used in transmission line??? what is there need???

2878

there are cam operated switches - why we call cam operated , What is cam ?

1869

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