Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to design coil turns ?

L&T,

657

how to calculate magnetic force genrated by a coil ?

L&T,

819

what is method of dc current measurement

5 5202




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

Reliance,

3 2413

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

Essar,

875

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

NTPC,

1 3581

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

13 22971

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 14954




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,

13 92631

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 2397

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

DRDO, TCE,

5 11462

what is meant by a slip?

10 7932

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

ABB, KVPY,

1 4889

What differance between Circuit brekar and Isolater?

TATA,

14 13102

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 6610


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Un-Answered Questions { Electrical Engineering }

why occ characteristics of generator is also called as magnatization characteristics ?

637


Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

646


Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

1512


What do you mean by cogeneration? What its working principle?

1858


why industry prefer ht motor instead of lt motor.

786






Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

2388


i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.

803


how to find motors H.P. whout any rating? (only give you a motor and multimeter)

2694


what is rocking arrangement in arc heating

831


Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028

762


Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

1014


plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

728


What happens if i apply 500V to 440V rotary Switch ?

597


what is the difference between torque induced and torque load?compare them with respect to dc motor?

624


why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

892