Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?

1 2340

Why should we use the igniter in the sodium vapour lamp.

Delphi, PICT, NTPC, Mudhra, ABB,

7 59619

what is the ideal earth resistance

Enercon, Amit Enterprises,

11 14474

What are the difference between these terms ? e.m.f, voltage, potential, potential difference, current etc? what are the difference between these terms ? (electromotive force) e.m.f, voltage, potential, potential difference, reference potential, reference potential difference, current. How can i explain and describe these all terms in single line each and little more explaination too thanks


2 5114

How to check the specific gravity of the two 12 V batteries connected in series to a 24 V UPS and inverter ? will we have to disconnect all the connections and turn off the UPS and inverter or not ? will we have to check specific gravities in each cell of the two batteries ? what is the name of the instrument that is used to check the specific gravity and whats the procedure to check the specific gravity with it ? thanks

2 4169

how one can check the Current of a DC 12 V battery ? Procedure. I told that take a thick wire (having more wires in it) and then join the + and - terminals of battery with the help of two ends of a thick wire .... is this correct or wrong .....

1 1960

can you check the current and voltage of a 12 V battery by a digital multimeter in this fashion that apply the digital multimeter across the battery terminals directly ? say yes or no ... i sais yes ........... is this true or false ? plzz tell me and also explain ........ plzz thanks

4 2824

What is the working of AVR in AC generators?

Navrachana University,

13 83830

MCCB 400 Amps 50KA 430Volt AC What is mean by 50KA

16 36776

what are the safety measures of induction motor?

3 3827

what are the safety measures of induction motor?


What is an electric arc?

3 2382

How will you Physically differentiate A.C and D.C motor?

BSNL, Polycab,

10 13455

In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 4147

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Un-Answered Questions { Electrical Engineering }

Which do you think is the most significant cause of energy loss in a factory?


plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.


What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?


hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx


3 pahase 750kva Running 2 DG sets in 35 mints.525ampers. and 616 kw how much fuel consumption in Generator.what is the formula.


What is the difference between security constraint unit commitment and security constraint optimal power flow?


Why power genaration in India is at 50HZ while America its 60HZ


how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me


How to calculate Ith (I thermal) for curent transformer


how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.


Why in 6 KV XLPE cable termination kit used and why not in 380 V xlpe cable same is not used


why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??


we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards


how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com


what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?