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Engineering Interview Questions
Questions Answers Views Company eMail

Classical power system stability was mainly focussed on rotor angle stability but modern power system stability has more focus on voltage stability.Why?

 4 6272

What are the circuit models used for analysis of medium length transmission lines? Which one is superior? Support your answer.

UPSC,

1 4969

What are the typical values of characteristic impedences of overhead line and underground cabel? Why there is so much variation?

 1 3531

Is the magnitude of force acting between two conductors running parallel and carrying alternating current remains constant? If not what will its frequency if frequency of AC is 50Hz?

 1 2943

Is the force acting between two parallel conductors of infinte length carrying AC of frequency 50Hz remians constant with respect of time? If not then what would be the frequency of the force acting?

1 3022

Why and which type of tertiary winding is used in most of the power transformer?

 2 4676

What is the basic difference between synchronous machine and induction machiine?

 1 4649

Why we use signal&voltage isolator between source n load.

Bhel,

3 5148

Can the field winding in synchronous machines be placed on stator?What is the limitation of such arrangement?

 2 4116

An alternator is started without excitation then how much voltage it will produced at strating at full rpm??

 4 5464

the compression ratio of petrol engine is always less than c.r. of deseal engine why?

 3 4851

Why the design of electromechanical energy conversion machines is based on the medium of conversion as megnetic field not as electric field?

 2 4575

Why annealing is done on transformer core manufacturing process?

ISRO,

1 12063

What is the approximate percentage of Si content in transformer core(CRGO-Cold Rolled Grain Oriented)? Why it is kept so low?

 1 2994

What are various accuracy classes of CT(Current Transformer)

 1 4226

Un-Answered Questions { Engineering }

What is the difference between single core 2 wire and single core 3 wire system? Which application we are using this? and for What purpose we are using this?

1857

I WANT BHEL PREVIOUS QUESTION

1837

In which code the the maximum height of concrete casting has been explained

2338

a three phase squirrel cage induction motor runs slow? list all possible reasons for such fault.

1529

strength vs shape factor

2133




Describe the different cold drawing processes.

654

WRITE A C PROGRAM TO REVERSE THE LINK LIST WITHOUT CREATING NEW LIST?

3266

hi friends i am first time using this site.i came to by some tcs personals that certifications r important for placements.i am financially average i am learning java from books.please tell is it enough if not which certification should i go for

1341

A low wet bulb temperature indicates

699

What is automation industries main category and sub category?

556

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

1634

convert 140 N.m/cm^2 to N.m/mm^2

1616

what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

1567

explain with diagram how to protect transformers and substations from over current with help of CT's?

1508

Which is the best option for maintaining water level of Boiler 1)Float type air break switches(well known as Mobry) or 2)DP type transmitter? Please explain in detail !

1331

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