What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?
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How Honeywell FSC is functioning and what is its purpose? Can we bypasa it and only use DCS instead of that.
what is the Instrumentation?
Why not come out analog output in ABB EL3020 when display show correct value
how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?
What are the type of bonnets in the control valves?
7. What are tri-state devices and why they are essential in a bus oriented system
What is voltage free(wet) and potential (dry) contact?
How many types of sensors are used in instrumentation & what are names
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How digital input and digital output 's are working in dcs
What is require for PLC Programming?
What are the interlocks we have to check during the start up of LP/HP compressor?