Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What happens to the synchronous generator when reverse power is given to it?

1 2509

If you know per phase current and phase to phase voltage; what is overall KW of the circuit?

ABC, GAS,

1 1836

I want to measure resistance between Neutro and earth conductor for 3 phase Transformer what should i do

1 1447




which type of motor is suitable for water pump?

IIM,

1 3166

what kind of battery is used in laptops

Pepsi,

4 3192

WHEN WE TOUCH THE BOTH TERMINALS OF BATTERY WHY NOT THE D.C BATTERY GIVE US SHOCK SUCH AS A.C SUPPLY?

3 2153

WHAT IS DIFFERENCE BETWEEN POTENTIAL DIFFERENCE AND E.M.F?

2 2063

In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 2061




what are the protections in 132 kv class electrical systems.....? hw u define that in elctrical terms..? . . .pls answr

ABB,

2 2268

WHAT IS THE COOLANTS IN TRANSFORMER?

Bhel,

7 5307

WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

435

What is meant by a linear circuit and what is a non- linear circuit?

5 3977

What is vcb?

3 1959

why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 4092

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

Asec,

2 1119


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Un-Answered Questions { Electrical Engineering }

what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

483


Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

455


What is rotating magnetic field?Discuss elaborately.

1087


How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

760


Define the three phase formula fuse.

317


Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

349


Earth leakage relay basic knowledge principle

599


What is core CT & it's function?

427


A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

393


How stabilizer works??

551


How to do the REF Stability test for power transformers in Site?

4560


Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,

413


How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

516


what is load vs Torque curve & why it is used?

480


will there be any problem by recovering slip from single phase induction motors?

401