Automation System
Numerical control:

is a method for controlling the operation of a machine by means of a set of instructions
All of these
applies only to milling machines
None of these
is a method for producing an exact number of parts per hour

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Automation System
Trend analysis:

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

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Automation System
A sequence controller:

is no longer in widespread use
performs on/off control functions in relation to time.
is difficult to program
is a mechanical only controller
None of these

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