Type of controller (P, PI, PID) is preferred for the process control loops


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a) Pressure
b) Level
c) Flow
d) Temperature

Pressure: If the load change is minimum, then a proportional controller is suitable. If a frequent load change is expected then a Proportional + Integral controller is preferred.

Level : Normally a proportional controller is preferred.

Flow: Proportional + Integral controller is preferred

Temperature: Proportional + Integral + Derivative controller is preferred