Automation System
Numerical control:

applies only to milling machines
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
All of these
None of these

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Automation System
Speech recognition:

None of these
will never be used in industrial controls
is already widely used in industrial controls
will be used in more applications as the technology matures.
All of these

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