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 3372

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

ABB, Delphi, Mudhra, NTPC, PICT,

7 68684

what is the ideal earth resistance

Amit Enterprises, Enercon,

11 19862

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 6607

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 5758

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 2998

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 5071

What is the working of AVR in AC generators?

Navrachana University,

13 92466

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

16 50717

what are the safety measures of induction motor?

3 5852

what are the safety measures of induction motor?

1570

What is an electric arc?

3 4102

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

BSNL, Polycab,

10 18594

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 6018

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

RRB,

1604


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Un-Answered Questions { Electrical Engineering }

How to choose size of the cable w.r.to current carrying capacity ...

1674


I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2

2417


Is it advantages of having star-delta vfd than normal star vfd , if yes why?

1761


What is the two pole structure?

1411


What is mean 2XWY

1972






What is speed mode?

1240


why are installed water leakage detection system data centers & server rooms

1841


Why magnetic flux produces an induced current?? what is the detailed procedure ?? ans plz

3224


What is power relay?

781


what is ps impedance test

1651


What is Instantaneous Earth fault relay,how will work

1673


what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

1792


Explain the method to keep noises low in a control system?

641


Why Stabilising Resistor used in REF circuit ?

2715


what is differant beetween overload current and phase current?

1764