why the derivative in PID is always set to zero?

3 Answers  

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How many types of sensor

0 Answers   Petro Rabigh,

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DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

0 Answers  

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types of transformer.. 1ph 3ph or core shell?

1 Answers  

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how many mmwc are eual to 1kg/sq.cm & can we calculate mmwc into tph?

2 Answers  

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can anybody will tell me abiut PID controller.

4 Answers  

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what is use single seated and double seated valve?

2 Answers   Doha Petroleum Construction DOPET,

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I am an intru engg frm pune n completing mba marketing in may 2010, what kind of profile would best suit my educational qualifications??? Also, i will move to US in jan 2011, so this job experience should count Over there too 'coz i want to continue workin even there....

1 Answers  

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how many types of elements are there?

1 Answers  

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What is input and output of plc & dcs

2 Answers  

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why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

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Describe how to calibrate various types of instruments and transmitters using ISA industrial consensus standard techniques.

4 Answers   Reliance,

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