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. Half the temperature deviation from setpoint will produce a given controller output.
B. Twice the temperature deviation from setpoint will produce a given controller output.
C. The temperature control valve will move half as far for a given change in controller output.
D. The temperature control valve will move twice as far for a given change in controller output.
Show Answer
Answer: A
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