單項(xiàng)選擇題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


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1.單項(xiàng)選擇題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

3.單項(xiàng)選擇題The ratio of output response to a specified change in the input is known as()

A.primary feedback
B.deviation
C.sensitivity
D.dead band

5.單項(xiàng)選擇題Which of the following definitions can be used to define the term ‘offset ’ as a characteristic of controller action?()

A.The period of time in which the set point and the control point coincide
B.The periodic change between the set point and the control point
C.The variable difference between the set point and the control point
D.The constant difference between the set point and the control point