How to derive IO Count (AI, AO, DI and DO ) from a Field
instrument (FI) Bill of Quantities (BOQ) given by client.
Explain why plc require in analog input 4-20amp & 0-10 volt?
Waht is surge in compressors and how to control it?
7. What are tri-state devices and why they are essential in a bus oriented system
what does a positioner in control valve ?
what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d
what is use single seated and double seated valve?
2 Answers Doha Petroleum Construction DOPET,
what is sliding spool valves?
what r the different types of instrumentation cables? give their specification?
which type inter lock use in petrochemical refinery,and oil & gas?
what is the difference between active and passive loop ?
how to use one 4-20mA signal for two indicater or controller & give necessary precaution.
what is function of PLC, and how is it work , explain with difination
1 Answers Bapco Bahrain Petroleum Company,
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