if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?
MPL,
1 3187How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.
1 2235I want to know about DDCMIS in detail ? please explain it. Also give name of reference books in which it is explained in detail in very simple manner.
1 3964regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?
1 7287there is one orifice plate already installed on 3" line, but my previous engineer(who is not working here) removed that tx, but now i want to take it in to the process, so now what i have to do now? flow fluid is hytherm oil of temp. 260deg & pressure is 3bar.
2 5900hi this is noor i wnt know the procedure and precations errection for PRESSURE AND DP transmitters? how to take impusle line for level and flow?(water and steam) impulse line sizes? and type of material ? plz give me answer / reffer any website ? to me "mail2noor.hyd@gmail.com"
1 4140What is the basic principle of vibration measurement by BENTLY NEVADA vibration measurement system? and Why it gives the -ve voltage output?
14 135911i want know about capillary type LT transmitter installation. we can install any location in between to HP and LP leg?
2 11086Post New Instrumentation Questions
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I WANT SECURITY PAPER MILL, HOSHANGABAD TEST PAPER.KINDLY SEND TO MY MAIL ID
any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.
can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know
plz send me general of ongc
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.
sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
please send data bank of quetions answers on analytical instrumentation.
What is the Working principle of Dozing valve?
principle of dead weight tester ?
can any send me a forbes marshall dtron 316 manual
Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in
Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
