Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

1350

what is the difference between changer, converter and transformer?

1465

what is the difference between transformer,converter and transducer

1644

what is the ATS .And how it works.

1563

What is distance between electrical panel to land ?

Fresher,

1472

highest rating of alternator used in india

1 2009

why impudance relay used for medium transmission power system? why not others?

1422

what are the functions of fuse ?

1 2285

How to calculate cable size by using load.?? Any formula...

1324

What is installed in PAC that is control the humidity

Sodexo,

1473

what will be the min and max voltage flow from neutral to earth?

1486

Maintenance of transformer???

Adani,

2215

Explain UPS

Powerica,

1 2222

If a high resistance fault occurs,then what are the changes will happen in the system?

1414

How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

4233

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Un-Answered Questions { Electrical Engineering }

how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

2115

any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?

1886

how generator avr give to the input?

1949

Which Class insulation is prefered for the sandwich Busducts ? Why?

2001

Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

2899

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

1878

What are your future plans for the company if permanently employed?

2123

explain the Trip supervision circuit

2107

How To increase Knowledge Of boliler regarding To Only Electrical Field..

1579

what are the breakdown voltage rating of mini- curcuit'transfarmer!

2129

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

2231

How to decide whether A / B / C / D curve type MCB should be used?

2246

What is Plank's Law?

1113

What is safety of Ht panel

1624

What is the difference between DOL starter and star delta starter

1086

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