Refer to the drawing of a lube oil temperature control system (see figure below).
The temperature controller is a direct-acting proportional controller with a gain of 1.0.
Which one of the following describes the effect of changing the gain to 2.0?
A. Increases the range of lube oil temperatures that produces a proportional controller response.
B. Increases the change in valve position resulting from a given change in lube oil temperature.
C. Increases the difference between the controller setpoint and the lube oil temperature at steady-state conditions.
D. Increases the lube oil temperature deviation from setpoint required to produce a given controller output.
Show Answer
Answer: B
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