Automation System
Straight-line operations:

can include diagonal cuts if they aren't curved
must be parallel to one of the axes of the coordinate system
None of these
All of these
must be limited to two per workpiece

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Automation System
Direct Numerical Control means:

eliminating computers from the manufacturing process
using one computer to control several machines
using several computers to control one large machine
complete elimination of a need for a human operator.
None of these

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