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 is the basic diffrence between Electronics & Electrical engineering

13 18230

Why we use Carbon & graphite mixxed brushes in the DC motor?

6 17372

If carbon brushes spring tension either loose or tight, what happen on Motor performance During Full load Operation?

Electrex, HP, TATA,

5 10231

Why in DC drive u r using in Klin operation in Cement Plant?

7 22465

Why use prefer Dc drive in place of Ac drive for kiln Operatio in Cement Plant?

Orient,

4 12576

why do we generate only 3ph ac?is it possible to generate 4ph,5ph,....?

Accenture, Bhel, Reliance,

6 16133

who invented electricity?

L&T,

20 25277

during positive and negative half cycle of ac supply what happenes in the load?

Siemens, Wipro,

1 6411

why do we generate sinusoidal ac?can we generate some other waveforms by alternators?

Siemens,

11 19148

What is the unit of vaccum?

Manhattan,

14 22904

Why Hg means mecuiry used in vaccum mesuring unit?

Manhattan,

2 7021

Do you know how to measure the earth resistance?

Manhattan,

7 15688

whether a separate starter is used for a motor while it is connected to a vvvf panel?

2 5268

What is Torque Vector Control in VVVF Drives?

PEL, Schneider,

6 17352

what is the use of choke on tube light fitting

Bhel, Dharma, HSBC, TCS,

37 81008

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Un-Answered Questions { Electrical Engineering }

Is vtg is controlled by the resistor? if else how much?

2085

What is installed in PAC that is control the humidity

1509

difference between power surge and switching transient

2092

given data are load current & power factor cable core size? plz any one update the calculation formula

1889

Why High voltage are generate noise ?

1511

What is touch potential and step potential?

2153

What is the importance of earthing?

1103

tan delta equation test on alternators

2215

What is the permissable nutral current of three phase system as per IS standards?

2107

what is ic 01,ic 06 ?is it types of cooling?

4313

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1959

why asa method ZPF method is more accurate than ASA method?

5815

excitation limit of an excitor

2053

What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

1881

Differnce between negative Pahse SequenceFunction and unbalance Function?

1745

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