Automation System
The ideal solution is to have a system coordinator who will interface with the engineering and manufacturing managers, as well as the:

president
finance manager
MIS manager
None of these
marketing manager

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Automation System
Time proportioning control:

None of these
a and b above.
cannot use a TM990 micro¬computer
can be used on a PM550 programmable process controller
is less efficient than normal PID control

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