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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what formula can be apply to calculate the No of rtrand of a cable. ?

1 3321

freuency meter

1 3373

How can we get d.c series motor characteristics by using a.c induction motor?

IIT,

1 3931

Why do we avoid electrical conduits in floors at apartments?

2029

The purpose of a choke is to provide a ?

1 5126

why we use end termination xlpe cable on ht kit

Al Bario,

1 2818

Why do you get a typical sound when the transformer is put into operation?

IIT,

4 8557

WHY IS CT SECONDARY SHORTED TOWRDS TH EQUIPMENT TO BE PROTECTED

1 3366

what is the resistence of human body?

BBC, NTPC,

3 8022

What is the difference between Encoder and Resolver?

DCCE,

3453

I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

1619

Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 6883

In simply words(not explain any formula )what do you mean by power factor.?

DRDO,

5 7635

how do i calculate voltage drop-if length is 1000 meter,amps is 160a

1 3848

When we use PT in HT Panel why the ratio is 11Kv/√3/110v/√3 please explain briefly with suitable formula?

1 10479

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Un-Answered Questions { Electrical Engineering }

Why do we require transformer with less specific weight if supply frequency is increased?

1538

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

2038

8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

9194

in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)

1902

How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1990

Why Ac Systems Are Preferred Over Dc Systems?

1260

working principle of oil startar

1845

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

1107

what is difference between line differential and transformer differential?

1696

Draw the circuit of clapp oscillator?

1083

what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

1909

Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

1013

Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1913

What do you mean by a current transformer?

1057

armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

1857

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