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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Why is a plain induction motor unsuitable for wide speed control?

2328

Distinguish between neutral earthing and equipment earthing?

7 29905

whis is the formula of converting KW into HP ?

14 33028

how to calculate compresor capacity?

2258

What is the "IS" for Rising Main?

APTransco, NTPC,

1 5697

Which type of drive is advantageous AC or DC and why?

5 7186

parallel operation for tansformer which condition fill fil for that

ITC Infotech, Suzlon,

11 13791

how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

Suzlon,

2057

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

IAG Automation, REL,

1 7842

What is switching over voltage?

MEIL,

1 6529

what should be distance between two electrical earthing pit as per i.e.e

Badve,

13 103636

1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 6559

2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

2075

3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

1930

4-Why we measure the insulation resistance of main core and frame in spite of that must be connected with ground before energize the transformer?

3 11420

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Un-Answered Questions { Electrical Engineering }

what is RNG in the DG synchronizing by PLC?

2179

Which type of DG need Netral Earthing?

5391

Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

2013

what is counter poise conductors

2220

i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

1911

what is circuit breaker in transfomer and where it used

1233

What are the basic component of a cro?

1298

what is rocking arrangement in arc heating

2187

what is reverse power relay brief explanation and in b/w where it is connected

2096

Earth leakage relay basic knowledge principle

2244

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1886

What is the automatic voltage regulator with servomotor?

2089

What is the Current equation in series RLC circuits.

1113

In Plumbing services What are accessories we consider for a bathroom?

2050

What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

1542

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