Automation System
Microcomputer-based control sys-tems

will just keep their present capability
All of these
will have more standard industrial application software available in the future.
will tend to increase in cost.
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.
All of these
the difference between the sensor input and the absolute sensed parameter.
the difference between the control setpoint value and the actual value.
None of these

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Automation System
Relay ladder logic is used in a PC because:

most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
None of these
All of these
it is the best industrial control language ever developed.
it is impossible to write a control program for a machine in any other logic

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

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

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