Automation System
When one must sell a project to management, the most important document he or she can produce is a:

method for financing the project
summary of the problem
procedure for purchase
None of these
project evaluation

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

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

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Automation System
D/A (digital to analog) conversion:

must be fed through a filter to reproduce the original signal accurately
results in a binary code as the final output
None of these
has to be sampled at 1/2 the highest input frequency
both (b) and (c)

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