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 should be the minimum and maximum ohmic value for earthing?

2 5967

As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 5106

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 9819

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 7676

Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?

Bhel,

2 7616

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 10226

Explain why the Voltage drop will happen in 3 Phase line?

3 7585

What is the equipment used to control the generator output?

3 5849

What are the factors to be considered during the Synchronization?

3 6813

What should be value of Circuit breaker operating time and tripping time?

5 14900

Why the CT Secondary is rated as 5A generally?

2 5818

At which time Synchronous generator act as a Synchronous Condenser?

1 6514

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 7964

What are the protections to be used for Generator?

3 6183

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3629

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Un-Answered Questions { Electrical Engineering }

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

2050

How will change the frequency in distribution side?

1755

how harmonics generated in induction furnance? how minimise it?

1965

Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in

4679

we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

1683

What is the complete procedure of erection of electrical panel in industry

1827

what is the difference between skin effect

2229

describe the phenomena of vacuum interruption in C.B

1741

what are problems caused by the pdu in rack server

1934

what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?

2140

It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

3826

we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1877

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

2228

describe the A.C. Generator Testing procedure

2129

how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1706

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