Automation System
Trend analysis:

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

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Automation System
A semi-continuous operation means:

coffee breaks are allowed for the operator
the operation is continuous each shift, but stops between shifts
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
None of these
a computer is a required part of the machine

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Automation System
What is proportional control?

None of these
The controller output varies continuously over a range
All of these
The gain is independent of offset error.
It has a discrete output for each error value

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