Automation System
Standard computer control products:

None of these
All of these
do not exist yet
are very expensive and not cost effective
are available off the shelf

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Automation System
Trend analysis:

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

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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
None of these
the error is divided into discrete amounts
All of these
the digital controller cannot handle integral mode

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