Engineering Interview Questions
Questions Answers Views Company eMail

C.S.R. and where are they use in electrical systems

1 2786

what irequirment need to be followed when working on live equipment

1313

If UG power cable both ends are to be earthed or what? If not why?

1504

which is the best book of electrical objective for placement

1 13256

How is the AVR working?

1 3017

what is the importance of earthing system on the generators big capacity and small?

1316

how to calculate the output power of vfd , please help me.

1 3911

Under Ground Power cable earthing is required at both end or single end? and reason for the same

3 4863

What is the differance between Quality Assurance Plan & Inspection Test Plan

Bureau Veritas,

2 14531

we convert 66kv to 33 kv to 11kv to 440v. why can't we directly convert 33kv to 440 ?

EMC, Jakson, L&T,

9 37727

When brick size is 3x5x9" , what would be the number of Brick requirement for 100 sqft area of 5" width?

5 7788

what would be the rqmnt. of cement and sand (1:6)for building brick wall and also 20mm thick plaster on the wall by same ratio?

1 5383

why using 3 phase

1 3049

convert 1 guntha = how many wars or 1 war = how many gunthas

Shaw,

5 121706

derive the e.m.f equation of transformer

2 9485


Un-Answered Questions { Engineering }

Hai friends this is Dara s. solanki, i done in B.Sc.(IT) i have an 2.3 years of exp in Manufacturing company in MIS giving support in SAP , 1 year back i did Sap course In MM Module. am trying from the day one to enter into the sap field but i was not.i kindly requesting all, please suggest me how to enter in to the SAP field. Looking for a job . i please help me and having any thing please let me know . i am in bangalore. my mail id is Dara.solanki@gmail.com. 8431455753

1704


how IDP Qury perform by the B subs MSC for MTC call. If subscriber is in roaming in other state? plz explain briefly

2407


what else we can add rather than admixture in concrete to reduce the cement quantity?

5324


A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

1697


Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1.  H1-H2 = H2-H3 H3-H1 2.  H2-H3 = H3-H1 H1-H2 3.  H3-H1 = H1-H2 H2-H3 For the LV side also: 4.  X1-X0 = X2-X0 X3-X0 5.  X2-X0 = X3-X0 X1-X0 6.  X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0  H2-H0  H3-H0    X0-X1  X0-X2  X0-X3 128.0  119.9  7.2      29.2   13.3   15.8 70.7   128.4  59.2     23.4   22.0   3.6 7.2    120.1  128.1    13.4   29.3   15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

1370






Hai Frds i want to join in testing tools course , plee tel me which was the Best institute, plsss reply me, i am waiting for ur reply....

1454


Hello Friends I had my ONGC test today,but it was very bad.But I would give certain suggestions so that u may not face he problem which i had. Be thorough with Electrical Technology.Generators.motors stators etc.There are 5 questions on that. There were also good no.of questions from Hydraulic machine and Production technology. Then 3 from Strength of materials.And remember the dimensional quantities.

1523


sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers

1876


Explain why gold is added to the p-n junction?

629


Draw the space diagram for a ten meter long beam simply supported at each end?

684


What is the function of auadag in a cro?

684


Why you would like to join the aviation industry?

679


Why do not we prefer non conventional sources of energy to conventional sources?

687


SIR plz send me old exam papers for RRB chennai

2315


what is the theoritical percentage of concrete cubes testing per day?

4395