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total more than 8 types of thermocouple is there.mostely
used k,t,j,r,s,b...
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please tel me the calibration of pneumatic controler.
A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?
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......
How will you calibrate PID controller? explain with example.
What is the cascade control
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
What is frequency factor in massflow meter? When using frequency output?
What is first echo & echo window in radar type level transmitter?
where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia
hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com
please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...
HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.
PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS
Please asked me How calculate DCS controller memory.
Who to difference between analog in & analog out in dcs?
