Automation System
The program execution time:

must be slower than the fastest mechanical operation that is to be controlled
will vary depending on the language used
cannot be changed once the program is written
All of these
None of these

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Automation System
Numerical control:

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

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