Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is ferranti effect?

9 9003

what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated

688

How earth resistance reduses by pouring water coal and salt?

4 17730




what is the long transmission lines

2 2165

transmisancy eficencey calculation formula

1 1891

what is PI value and its significance for insulation testing?

3 20835

How the main bus bar rating of 400kV switchyard with one and half breaker scheme is calculated.

2 6995

What is stub protection is all about?

1 4547




WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??

Dubai Group, Savitha Electricals, Saudi Delta Groups,

14 51416

What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

Bhel, Dubai Group,

9 14481

WHAT IS THE DIFFERENCE BETWEEN SHOP DRAWINGS/ DESIGN DRAWINGS AND AS BUILT DRAWINGS??

Dubai Group, ECEC, ACC, Al-Jaber,

2 24636

we hav seen in electric engine of trains only 1 wired slidng conecctn is there frm ovrhead line,howevr to complete a ckt in dc postv n negtv two conection has to b there...so where is tht negative is been connectd or where it is grounded...?

ABB,

5 4056

how to select short circuit current while selecting a MCCB? how to calculate current for a given KVA and KW load?

GE, PnU Engineering,

2 14739

in a three pin socket y the pin of earthng is longer n bigger...?

2 1511

What is the safety protection? Name the protections of Transformer?

HSL,

1 4043


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Un-Answered Questions { Electrical Engineering }

what is the difference between b c d curves on mcb

324


which model T or pie model is prefarable in power syatem

586


How to select the proper VSD to operate high inertial load

446


Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

769


what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

731






WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

677


What is resolver and glass scale in CNC how they work?

733


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

1052


Please, if 1kw is equal to 1.25kva; how then do I know how many kva in 7.5kw?

156


How To Convert Apparent Into Real Power Without Knowing Reactive Power?

432


WANTCONTACT NUMBER & EMAIL/ WEBSITE TO CONTACT THE SECRETARY,MADHYA PRADESH LICENSING BOARD(ELECTRICAL),K- BLOCK,3RD FLOOR,SATPOODA BHAWAN,BHOPAL

704


difference between servo motor and synchronous motor

1040


Why the symbol of register is "zig zag"

182


Why we use duplex coil and hook switch in telephone system?

3044


completed BE & done apprentice at tneb & having experience 6 years. want to get c license. will apprentiship & BE be helpful for getting c license. will i get any preference by showing this?

286