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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

total numbers of earthing of a transformer

1 2902

How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

1603

Full form of bdv test?

Hi Tech Transpower,

2 3678

simple way to find busbar sizes??

SPAC,

1 2742

Why to keep capacitor bank off while generator running.

GIT,

1742

Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

1682

why the carbon brushes are broken in srim while the motor runningtime

1651

What is difference between Sample test and Routine test in safety standard?

Chicony Electronics,

1883

i have a motor 55kw how u will calculate cable specification for this motor

1 3503

what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

KPCL, MDIM,

1568

On what basis the the size of Lightning arrester for buildings are selected ?

KGD,

1611

What is the mmf,rgt and ngt please brief completely

cpgn,

1594

How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

cpgn,

1733

Why reverse relay used

cpgn,

2 3131

I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.

1 3585

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Un-Answered Questions { Electrical Engineering }

What is dynamo function in DG sets and draw block diagram?

1997

Difference between HRG and NGR. Are they both the same thing

4242

if a.c supply is given to the motor,, what happen?

2116

My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?

1558

Why we use ups battery and dsdb battery in thermal power plant

2043

quantizer means?

1887

In a single how much maximum current and watts using

2115

What is meaning of out of phase (making & breaking) capacity And how to calculate

2166

xpression 'document.FrmQF.myemail' [

1961

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

1917

what is difference between bus coupler and auto transfer switch

4103

What is a compensator?

1029

In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

1993

WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

2707

IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

2094

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