Automation System
Trend analysis:

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

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

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

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