Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is automatic voltage regulator and it is used?

HAL,

2 2034

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

JCB, Bhel, BSES, DRDO, NTPC, Akona Engineering, Cranex,

44 22601

WILL THE PERCENTAGE IMPEDENCE FOR A ONAN TRANSFORMEER BE THE SAME COMPARED TO ONAF TRANSFORMER OF SAME RATING???

5 6391




Why don't we provide SURGE ARRESTORS for Transformer feeders?

5 5603

How does "OUT OF STEP" relay ,for Synchronous motor protection, work?

3016

Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

850

How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??

2 5495

Why do we give DC excitation to AC Synchronous motor??

Polycab, Lance, MBM,

9 27649




How is the percentage impedence of a transformer fixed at design stage???

819

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

707

Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 3863

after how many spot we must chang secondry cable in portable spot welding gun?

715

What is the difference between MCCB, ACB & VCB

7 13170

what is mean by NTPC?,why didn't electric shock in train?

7 9149

wat's the procedure to take short circuit current for cable selection

791


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.

1961


any earth foult trip the relay but in welding time not trip by earth foult

1896


typically in power distribution substation. 1- Any idea how would be the graph of capacitor bank consumption verses time through the day . 2- How is the switching ( on and off ) of the capacitor bank, per need?

501


what is the internal working of star delta starter

909


HOW TO CALCULATE THE VT SIZING?

1216






when will be the iocl interview results ifaced the interview on september 8 th

824


please give some hindalco placement papers for written exam

545


i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

773


We have two parts in generator, electrical & mechanical. how it works?

763


In Designing the rating & accessories of a MCCB how to choose the type of releases..means what is the basis for selecting, thermal magnetic, electromagnetic & microprocessr based releases

849


draw 3 phase rectifier diagram

835


describe the Operation of induction generators from bus bars

1004


Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m

1002


What is the exact formula for one weber of magnetic flux?

906


We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

200