单项选择题

The control mode where the position of the final control element has a linear relationship with the position or value of the controller, variable is known as（）

A.two position control
B.proportion control
C.reset control
D.rate control

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单项选择题

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

单项选择题

‘Offset’ is an inherent characteristic of which of the follow types of control modes?（）

A.Tow position
B.Proportional
C.Reset
D.Rate

单项选择题

The ship security officer shall have knowledge and have received training, taking into account the guidance given in Part B of （）

A.the ISM Code
B.the ISPS Code
C.the IBC Code
D.the IGC Code