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单项选择题

In an automation system, the effect of a control action sensed by a controller is known as （）

A.command input
B.set point signal
C.output
D.feedback

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相关考题

单项选择题
The value of the controlled variable, which under any fixed set of conditions the automatic controller operates to maintain, is known as （）

A.set point
B.control point
C.deviation
D.offset
单项选择题
The quantity or condition which is measured and controlled is known as the （）

A.controlled variable
B.manipulated variable
C.set point
D.control point
单项选择题
The steady state difference between the control point and the value of the controlled variable, corresponding with the set point, is known as （）

A.dead band
B.control point
C.deviation
D.offset
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