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 we use perllel conection system in the wiring?

Airtel,

4 6728

why the transformer neutral earthing is to be done by copper flat only,if we use GI flat what is the disadvantage.

2 8489

HOW TO TEST A LIGHTENING ARREST ER ?

Bhushan Power Steel,

2200

FOR 3 PHASE DISTRIBUTION,WHY WE USE ONLY THE VOLTAGE LEVEL OF 440 VOLTS

AITM,

1 4047

what is technical diffrence between table fan and ceiling fan

5 6910

In dc motor starter there is less voltage required for holding contactor that's may why it is called no volt coil. but in ac starter why holding contactor is called no volt coil.

JSW,

2 5646

If there is unit power factor in a power house and a capacitor bank used in a factory at resistive load . In this case, will there leading power factor in power house across that factory.

2 4690

where was current transformer protection units used and why??

2035

there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.

Construction, wbsedcl,

5 23931

what is the solution for meger test failed the MV cable?

1 4265

What is the formula that shows relationship between voltage and speed in an induction motor

2 5181

i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula

May Baker,

2208

show the single line diagram of star delta starter with single phase preventer

4641

What safety followup during kWh meter isolation

2102

what are the things that can cause a three phase motor to crawl?

1 3564

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Un-Answered Questions { Electrical Engineering }

how much maximum load a 2 core (Single phase) 16mm aluminium wire can take ?

2639

WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

2386

how we calculate electrical load on a building according to area?

2796

In dc ckt. 24v or 110v, which one is more efficient and why?

2238

Details about Flux Compensated magnetic Amplifer starter for motors

2016

WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

5048

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1967

What is limitedly stable system?

1130

Battery is a voltage source? give one example of current source and why?

1585

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1927

why the value of k is more in shell typr transformers?

1997

difference between semiconductor & conductor & insulator?

2370

Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???

1949

what is the VA(Volt-amphere)? define with calculation?

1283

How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

4052

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