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In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.
1897(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
3983Post New Instrumentation Questions
anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me
what is diffrance between FF & SMART, explain with difination
What is limitation of the ht.of the displacer of a level trol?
how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
what is the responsibility of an instrument commissioning supervisor
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?
Why trim span ? How?
1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.
What is shielding effect?
Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd
hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com
IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?
