Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to design coil turns ?

L&T,

712

how to calculate magnetic force genrated by a coil ?

L&T,

892

what is method of dc current measurement

5 5337




How much energy save vfd if motor run on 50 Hz (full speed)

Reliance,

3 2499

How to Decide(calculate) Bush bar size for copper and aluminiam ?

Essar,

929

why knee point voltage should be high in Ct for differential protection

NTPC,

1 3696

what are the difference between protection class CT and Class PS CT

13 23490

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 15510




How to calculate HT XLPE CABLE for 11 kv / 433 v , 1500 kva oil type transformer system? plz provide step by step calculation

Sitara Energy, Engineers India, Polycab, Sonali Bank, Shashwat, Indian Railways,

13 95773

Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

2 2488

why we use star connection on the primary side of a transformer?

DRDO, TCE,

5 11904

what is meant by a slip?

10 8182

why transformer is conneted to dc for polarity test.it doesnt work in dc?

ABB, KVPY,

1 5039

What differance between Circuit brekar and Isolater?

TATA,

14 13430

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 6796


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Un-Answered Questions { Electrical Engineering }

how will calculate the safe starting current of 3-phase squirrel cage induction motor?

694


why HT armoured cable does not glanding

2716


Write down the name of 2 lady Bir Pratin of Bangladesh

660


what happens to the supply voltage if there is any change in frequency?

4170


What are locations arc protection relay is fixed.

625






If not into production, how far did you follow the design and why did not you see it into production?

832


what is the effect of back reactive power on the generator ?

957


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

942


1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

1210


what is POTT and PUTT explain?

1720


Why front mounted CT polarities are always towards breaker?

749


what kinds of Transformer oil grade is better for power transformer ?

406


how to work droop ct in generating station

1175


2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

943


When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

879