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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 2790

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

ABB, Delphi, Mudhra, NTPC, PICT,

7 65426

what is the ideal earth resistance

Amit Enterprises, Enercon,

11 16457

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

Siemens,

2 5733

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 4796

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 2355

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 3695

What is the working of AVR in AC generators?

Navrachana University,

13 88245

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

16 43342

what are the safety measures of induction motor?

3 4629

what are the safety measures of induction motor?

1144

What is an electric arc?

3 3039

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

BSNL, Polycab,

10 15464

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 4871

PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com

RRB,

1151


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Un-Answered Questions { Electrical Engineering }

WHAT IS THE PARTIAL DISCHARGE TEST?

1132


What magnetic circuit is formed in berry-type constructions and why?

177


Briefly describe your ideal job?

2069


can u give me a brief idea about power line carrier communication ??

998


Load break swicth maintenance procedure.

834






How dia computation perfomed in cold rolling mills .

2140


Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this

768


how we can calculate power factor in single phase & three phase ?thank u

1122


Please elaborate th´evenin’s theorem?

161


State superposition theorem?

153


Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

957


Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

1214


I want the details about BHEL company examination.Can anyone able to help me please.

1114


Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

813


Can a generator runs after getting 1st stator earth fault.

574