Automation System
Use of modern control technology in automation systems:

improves reliability
None of these
increases yield
reduces costs
All of these

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Automation System
How is the integral mode implemented on a digital controller?

the error signal is summed over a discrete time interval and accumulated by the controller
All of these
the error is divided into discrete amounts
the digital controller cannot handle integral mode
None of these

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Automation System
Trend analysis:

requires a very expensive system to implement
is used only in financial planning
can improve control system response
is a brand new concept
None of these

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