Automation System
Analog and digital controllers:

can be changed with equal case
cost the same to build
All of these
None of these
accept the same input signals

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Automation System
Numerical control:

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

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Automation System
Trend analysis:

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

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