Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is transformer?

2 3714

why DC is not generated instead of AC?

4 6311

Name the instruments which run on DC?

2 3026

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

1438

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

1842

WHY IS wet surface used for grounding???

2 4032

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

2 6283

what is the diff.between neutral and earth?

4 5406

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

2 3351

Is there such a frequency as 440v 50Hz?

1 2879

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 4575

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,

1529

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

ABB,

1463

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

2 5108

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

1 22116


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Un-Answered Questions { Electrical Engineering }

How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1144


distribution is maximum done by a)radial b)network c) parallel d)b & c

1485


What is meant by stator?

650


RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

1601


Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

950






How to use computer cpu ups use for home inverter circuit board

1278


Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

608


Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

2143


what is control supply rating of a machine

1482


All tape of electrical questions Answers tape of motor transformer e.o.t crane

2104


why ten delta testing is carried out on power transformer

1350


hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

1827


how external lighting design? please give examples?

1416


For RCD (Residual current device) Icu is defined. How i can find Ics for them?

1589


Transmission through a short line depends on

1664