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 the TNC switch is called as Memory switch

Reliance,

1 4026

how to understand the controling circuits example star- delta-starter controling daigram please let me know

GMR,

3 8282

how many earthing should give for transformer body and nuetral

GMR, GOMS,

5 9578

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

1973

Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 5906

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

1976

Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

Vedanta,

2 6107

How the size of transformer decreases if we increases the frequency?

2 5278

Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

GMR,

2 5622

how to synchronize 3 phase slip ring induction motors of different ratings.

GMR,

2225

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

GMR,

3 6077

1.differance between onload ups and off line ups.

CTS,

1 6062

want happens when a dc is given to a commutator

2 5255

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 6730

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

SPCL,

1 2774

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Un-Answered Questions { Electrical Engineering }

PLZ SEND ME SOME UNIQUE PROJECT OF ELECTRICAL ENG (B.TECH)

1913

Graphs of measuring power and speed on dc motor

1915

why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

1457

How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

1743

what are the 4 rules to start the motor?

2049

Explain Random and Deterministic signals?

1752

What is process of anneling transformer core

1917

How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

3010

Please send 110 kv sb station full single line drawing(sld)

2414

Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel

1977

determine two methods to find loose connection in operational electrical system?

1631

What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

2270

Why does the radius of armature is less than the radius of pole shoe?

2107

why the check zone and main zone are used for Busbar Protn. scheem?

2122

how does ELR works? explain

2614

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