Automation System
Compared to an open-loop system, a closed-loop control system is:

All of these
more complex
more accurate
more stable
None of these

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Automation System
What is offset error?

the difference between the controller output and the setting of the manipulated variable.
the difference between the control setpoint value and the actual value.
All of these
the difference between the sensor input and the absolute sensed parameter.
None of these

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Automation System
If the transient response of a system is overdamped:

the value of the output never exceeds the value of the input during the transient period.
None of these
the value of the output never stabilizes.
All of these
the value of the output exceeds the value of the input at times during the transient period.

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Automation System
Numerical control:

None of these
is a method for producing an exact number of parts per hour
applies only to milling machines
All of these
is a method for controlling the operation of a machine by means of a set of instructions

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