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 basis for selection of Protection CT class ? How anyone can decide whether to go for 5P10 or 5P20 ?

3 6475

What is PCCB?

ICEL, Schneider,

3 8053

Why LT cables are not sized based on short circuit capacity.

3 6335

I am final year b.tech student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after b.tech..

1 3548

Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

1853

IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE EQUIPMENTS IF EARTH GETS OPEN ON LOAD?

2 5738

where we use the SFU & FSU?

L&T,

2415

Why Auto Transformer is called "Auto"? What is the logic?

1 4067

my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 5251

I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

2135

what is meant by generator differencial protection?

1 3640

what is meant by residual over voltage & residual earth fault ?

8920

in 400 kv system why should trip both side CB when we give hand trip?

KPTCL, NHPC,

1 7553

Why material of brush is carbon in motors why not other material.

NTPC,

5 9551

how to mesure the earth pit value and what is the minimum value of single earth pit?

3 6707

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Un-Answered Questions { Electrical Engineering }

what's the exact magnitude of current, flows through Neutral?

1966

armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

1909

tell me about roaster switch .& what is the function in transmission & distribution?

2670

excitation limit of an excitor

2057

What are the types of feedback oscillators?

1296

what is the meaning of WYE and DELTA in Electric meter?

3826

i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....

1908

What is a compensator?

1083

Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

1799

bus bar design conditions and sizing pls tell me quickly

1898

Difference between ac parallel circuit and ac series circuit?

2117

what can be the causes of capacitor start motor having a higher current that its actual

1967

Mention the disadvantages of low power factor?

1130

ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

2021

How to calculate VCB rating for 33KV ,25 MW Power line?

1750

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