Answer / sushil jambhulkar

IN OPEN LOOP INPUT & OUTPUT ARE INDEPENDENT.
IN CLOSE LOOP INPUT IS DEPEND UPON OUTPUT.

Answer / veera

*open loop for monitoring purpose, there is no control action taken place.
*closed loop for both monitoring and control purpose.

Answer / guest

close loop consist of final control element..example:contol
valve
open loop does not consist of final control element..
example: motor

how to calibrate control valves & power cylinders & ultra sonic level transmitters

0 Answers   ABB,

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how to install the Ph and Conductivity analyser? is there are any procedures which has to be maintained.

2 Answers  

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I am teja. I am studying Msc(tech) Electronics and Instrumentation (3years course) in Andhra university. But my course is not recognised by UGC and AICTE. Please tell me the job opportunities after this course. And i fineshed PLC course in IGIAT ,Vizag.Also complted my short term coure in SCADA, Seimans WinCC in ATI,Hyd.After Msc can i join Mtech for good job? or phd. How i can get good job in INdustrial Automation Side. Please give replay.Because this is my life matter.

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Tell about your IFFCO plant visit.

0 Answers   L&T,

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What is an SCR?

4 Answers   GAIL,

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Define cryogenic?

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what is SIL 1 2 3

0 Answers   KOC,

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What is glanding

1 Answers  

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0 Answers   SEWA,

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2 Answers  

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Different between control valve and mov

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0 Answers   BARC,

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