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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

who is invented transforner (230v).......

2 3384

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side

1 2724

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

1573

why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

Bhel,

2 6121

Why we does earthing for transformer neutral point

amps, DLF,

5 9814

which is dangerous AC or DC? If so why?

4 4981

why the check zone and main zone are used for Busbar Protn. scheem?

1444

why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 4094

Why should we use Star-Delta connection in step down power transformers?

L&T,

7 17608

now a shunt motor is practically a constant speed motor , then how does it meet the increase or decrease in the load ?

1 2481

how to varied the frequency in transmission line and how i kept it as a constant one?

L&T,

2 3954

what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 3423

What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?

1 3022

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1304

1.what is difference between line,neutral and earth 2.IF single phase voltage is 230v ac and what should be the voltage between line to neutral,neutral to earth and earth to line

1 5234


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Un-Answered Questions { Electrical Engineering }

what is the electrical?

1451


how to calculate mf when meter and cTPT detail are given

1151


when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1296


what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

1537


how to select fuse rating for a 3-phase motor ???

1175






Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph

1859


Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

1381


Name two types of electrical analogous for mechanical system.

482


hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

1254


'documenˁ

1329


11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?

1428


WHAT IS counter flux IN CT?

1342


i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

1373


is there any role of power factor with frequency variation? and how we can manage the frequency variation?

1475


PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

1756