Electrical Engineering Interview Questions
Questions Answers Views Company eMail

during installation time of transformer and alternator which points we have to observed?

1481

what is principle in relay testing kit?

3 6662

how we can calculate which capacity capacitor bank we have to add for improve pf?

Consultancy, JM Huber, Torrent Power,

3 14077

what is the difference between LT and HT power supply?

Center One Mall, Central University, JSW, Siemens, Suzlon,

26 178485

why buchholz relay installed in inclined position

Eskom,

3 10802

what is zero sequence curr ent ?

4 16912

why we cant use AC supply products in DC supply?

21 17377

why 3 phase motors are preferable over single phase motors ?

4 5201

how to select cable size?

4 9752

what is the purpose of starter in tube light?what is it operation .

1 4311

1)Why electric shock is feel ?? n in a Electric Train why we didnt feel that ? 2)What is the reason for transformer Noise ?? 3)What is relation b/w Transmission Lines & Communication Lines ? 4)Which material is used for making Transformer oil & How u measure its dielectric strength & Name the test ?

NTPC, Tata Power,

14 23393

To check the earth condition (In plug points); the voltage between earth and Neutral is in below 5 volts. Is it correct

6 7035

What is effect of power factor on change in voltage

APNPDCL, apspdcl, My Home Industries,

13 42148

Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??

1948

which network topology offers the greatest level of tolerance?

1571


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Un-Answered Questions { Electrical Engineering }

mccb service sittings be done?

1416


Where can i get practical knowledge of solar system?

958


why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

1455


explain wiring system

2082


which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter

1624






WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

1738


How to assume answer to electrical questions

1021


what will be the min and max voltage flow from neutral to earth?

932


What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1242


What is mason's gain formula?

768


why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

1725


Differentiate between low pass, high pass and band pass filter?

611


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?

1414


How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

1413


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1157