Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How are calculated the aluminium busbar cross section area?

2 5668

Are same transformer be employed for step up and step down services?

3 2689

On what basis primary and secondary of a transformer is chosen?

2 2160

how to male a d.c bettery to blow a 230v bulb?

1 1911

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 4444

How to protect the water pump by no load running.

Cushman Wakefield,

9 5642

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 1461

In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 1829

In UPFC,What is the need for Dc link ( DC capatior)?

1 2448

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 1072

why microprocessors are named as 8085 ,8086 etc? what's the reason for this???

HCL, Bhel,

12 21934

what is basically a pulse transformer?

1 4243

what is relay multiplier

Bhel, Wipro, Atomic Energy Commission,

1 2821

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 2230

SSC JE ELECT.

SSC, CPWD,

1 13969


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Un-Answered Questions { Electrical Engineering }

What is relation between transmission lines & Communication lines ?

619


hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

855


why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

355


how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

852


We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

553


pls someone send me sample question papers along with the key.thanks in advance

568


How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V

320


what is the cause of voltage dipp or swell in the transmission lines?

467


what is meant by 3rd hormonics ?

370


Explain using drawings what is reverse PID action w.r.t PID controllers.

1326


What is use of starter and choke in tube light

96


How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

331


wish of these transformer uses oil?

144


Why do we need interlocking in a HT metering or Ring main unit switchgear?

373


why normally Generator rating are between 11Kv to 22Kv?

1625