Refer to the drawing of a lube oil temperature control system (see figure below).
The temperature controller is a direct-acting proportional controller.
Which one of the following describes the effect of changing the controllers gain from 1.0 to 2.0?
A. Half the change in measured temperature will produce the same change in controller input.
B. Twice the change in measured temperature will produce the same change in controller input.
C. The temperature control valve will move half as far for the same change in controller input.
D. The temperature control valve will move twice as far for the same change in controller input.
Show Answer
Answer: D
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