Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

HCL, Jaypee, JPMorgan Chase, College School Exams Tests, HC,

21 43564

DIFFERANCE BETWEEN function of ELCB? function of rccb? function of mccb? function of acb? function of mcb?

MacAir, Sajas,

4 9431

what are the sample questions asking to the test cunducting for electrical superwising lisence test?

APTransco,

645




i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

730

Why efficiency of generator is higher than motor at a particular load?

821

Why capacitor bank does not require in DG Set?

IBM,

21 41365

define regulation

3 3567

33kv Rated output avilable in market (any where in india)

C2C,

837




RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

744

can three phase induction motor rotate with only 2 phases connected

Suntron, Mannar Company, Delta,

22 37542

difference b/w eath and neutral

ABB,

10 7502

Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

1014

What the methode get earth resistance?

2 2764

what is difference between induction motor&servo motor.what r types of servo motor?how it works?

1 1845

how do we calculate of transformer in va?what is calculation?

2 9702


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Un-Answered Questions { Electrical Engineering }

In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

669


we specify current in case of feeder but in case of distributor voltage, why?

521


how to failure indution motor insulation & how to improve heat in motor insulation

523


WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

523


A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

802






IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?

602


how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

715


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

424


What is the difference between earthing,ground&nutral?

3932


11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

434


how can we design robots

703


Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.

428


what is servo motor and how to work it.

620


how much LT load can bear by the 100 KW HT connection.

755


HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

613