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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why semicondoctor use in HT cable?

1 2466

why single core HT cable need only one side earthing?

2 6665

give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

1670

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

1316

What happen if we give resistance to the armatuure of a dc motor?a

1 2120

break down of electricity is more in summer or in winter ? give reason

4 3997

Why do we will ground the positive terminal in electrostatic precipitator

JSW,

1244

Why the substation measure in KV but not in the power ratings of transformer.

4 4458

What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

1853

in 220 kv substation,what is the mean of avr voltage reading? means at oltc temp. 36 the avr voltage was 109v.so what the mean of 109v

1 1456

difference bewteen reverse current and alternating current

ABB,

1238

if transformer core is made of copper instead of steel which losses will increase..please explain

Bhel,

5 12204

Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?

1013

Which element is highly conducting coppoer or gold?

3 3098

what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

1498


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Un-Answered Questions { Electrical Engineering }

What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

227


On what principle electric motor works?

251


Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

2437


How to calculate the value of earth capacitance in a transmission line.

1327


defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?

2730






does a DG set has low fault level as compared to that of a transformer.If yes then why.

1121


bsnl tta exam question

1079


What are Contactors? How they works and what its highest rating?

1108


What is nichols chart?

254


A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

279


What are your future plans for the company if permanently employed?

1270


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1112


what happens if earth of 33kv cable is not connected to earthing pits? please send this query's answer to ngrm.sudha249@gmail.com

1179


Define ampere

260


What is Servo Ventilated Motor?

1156