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I saw one P&ID 6" control valve has been connected with 8" process line, and 2" valve also connected in parallel with 6" valve. why the 2" valve connected in parallel, Is there any technical reason. please clarify. With Regards-Kittu
GNFC,
5 10268i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me
ONGC,
3 11217what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar
1 6701what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly
2 5706what is the difference between(Flame proof/Explosion proof)& Fire proof instruments.Both are same or different & if different in which way because the transmitter which have approved ATEX flame proof enclouser but it use PTPE O ring & PTFE Head Gasket,so its (fire safe/fire proof)????????
4 22159can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.
2204If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR as accurate value?
7 10149Post New Instrumentation Questions
Tell about your IFFCO plant visit.
I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.
What are the materials available to prepare individually for competetive exams in Instrumentation field? Plz reply...
what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question
please send the drdo exam paper
i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
What is force balance principle? State some of its’ advantages.
How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?
What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?
what would be the minimum flow rate that we can measure on rotameter..?
what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??
what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?
which processor is used in dcs.
How to change dcs card in online. (Dsc is maxdna)
