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 Horan Gap Fuse? Where it is used?

1 20623

Difference between SHORT CIRCUIT and an OVERLOAD ?

1 11191

What is principle of Floroscent tube 36watt.

Diamiller, NDPL, Trident Hilton,

2046

purpose of flux relay for turbo generator in power plant

1 3293

which type of capacitor store high amount of energy for long time ? ( polarized or unpolarized )

1 2563

what is differnce between grounding and earthing or both are same?

3 6137

why transformer is rated in kva instead of kw?

1 4883

what is a bus riser in power system and why it is used

2 46216

what are the sections in a high voltage system(eg:incomer,buscoupler,isolator

IGL, L&T,

1 4953

what is the difference between kva and kw ?

TCS,

5 15879

What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

2393

What's the difference between a generator using 50Hz and 60Hz? When do we need to use a generator 50Hz and 60Hz?

3 7728

what is the difference between analog and digital signal?

3 5989

a simple c++ program to calculate simple interst with its data members as private

L&T,

1871

why we are called the 4-20ma transducer,not 0-20 ma transducer??

3 5679

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Un-Answered Questions { Electrical Engineering }

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 the test block protection relay if any body know plz explained

1475

one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..

2139

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1983

How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

1757

i have a 1500kVA transformer what is the kWH meter i need to use?

1789

In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1964

Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

2740

When is lag lead compensator is required?

1124

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

3046

what curve and rateing would you use for a three phase 0.75kw motor?

1991

What is Phase margin?

1104

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?

2022

how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

2297

how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

2047

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