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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

1868

generally rectifying of ac tells. ac signel appear at phase and neutral with respect to frequency by -veand +cycles. but we doesn't experience shock with neutral in house hold ac??????.

ETA, RRR, TCS,

1 4876

Tell me about Simence PLC 'BLOCK'.How many types and what for.

Gurit,

1 4287

Define over current & earth fault ?how its functioning ?

1 3788

how can we choose the size of road crossing pipe for power cables

DLF,

2 4188

what is the installation process for lifts

DLF,

2375

is it necessary for 200 kva transformer to have marshaling box and cu plate earthing for neutral

Blue Star,

1 2933

redundant connection in contactor?

Emerson,

2547

why effective resistance should be more than static resistance in transmission line?

2150

what is the difference between EMF and potential difference??

3 5483

how many testing use in power transformer?tell equipment names?

ABB, Electrical,

2 5970

in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)

2012

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

2017

why using earth testing rod 15 meter 30 meter long to each other?

1 3713

1 unit or 1 kwh means how much kva

TATA,

7 23857

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Un-Answered Questions { Electrical Engineering }

During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative

2165

Why the magneti fields are not passes from southpole to north pole

2173

explain the functions of main isolation switches

1722

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2150

how we can calculate 2 phase welding transformer rating or total power?

1929

Parts of machine and their discription in details with suitable photo

2110

For overhead protection we use which transformer?

2548

What is the previous name of Cox's Bazar

2286

why ss stablity limit is more transient stablity limit?

2235

Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?

2107

How to calculate the sag on transmission Lines.

3076

iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

2332

can anyone send me some sample question regarding power grid corp

2250

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

2080

What Is Connection APFC Panel In Compony.

1493

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