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 transformer?

2 4733

why DC is not generated instead of AC?

4 7727

Name the instruments which run on DC?

2 4037

How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?

1925

How to decide whether A / B / C / D curve type MCB should be used?

2303

WHY IS wet surface used for grounding???

2 4957

how to find insulation resistance of a motor(415v) by theoretical formula??

2 7750

what is the diff.between neutral and earth?

4 6917

why the iron chains were hanged at the back or front of the trucks earlier which were touching the earth?

2 4472

Is there such a frequency as 440v 50Hz?

1 3785

My switchgear busbar is rated at 2000A and just imagine the actual load on busbar is 1000A. From that busbar there are 10 outgoing feeders. Now the question is will the load be 1000A on each outgoing feeder or 100A per outgoing feeder. 2nd thing how do i calculate the load on individual feeder. Thanks for your time. Please provide some clarification on this issue.

Alstom,

1 5352

hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

Bhel, CVL,

2065

what is mean by dual digital protection in the relay field?

ABB,

1938

HOW TO CALCULATE GROUND FAULT CURRENT IN 430V 4000AMP AIR CIRCUIT BREAKER?

2 6057

draw a circuit diagram connecting transformer OLTC- RTCC- VCB-Marshalling Box otherwise Explain in words

1 23135

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Un-Answered Questions { Electrical Engineering }

hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com

2922

Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078

1821

What happens if we give the supply to the rotor of induction motor and make its terminal shorted?

4079

For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

2327

What is core CT & it's function?

2203

HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

2509

HOW TO TEST A LIGHTENING ARREST ER ?

2200

errection check list for transformer maintenance

2608

How many types are using in 220kv/400 kv swith yard

2193

How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

1923

what is the difference b/w ground & virtual ground?

2317

why Lightening Arrester Probe sharp at Top of telecom tower.

1566

do any one help me to get "C" license,, i have doubts ,,, if mediators ter pls call me,, my no is 8056640042

1438

What is the difference between electrical earthing and electrical grounding?

1157

What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

1793

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