Automation System
Numerical control:

applies only to milling machines
All of these
None 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

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Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

the user must have access to both hardware and software
None of these
technical assistance must be provided to the user.
there should be a common 3-D part description system.
the system must make provision for new techniques.

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Automation System
Semiconductor devices:

None of these
usually have a very short MTBF (mean time between failure)
are less reliable than electro¬mechanical components
All of these
have a very short infant mortality period

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Automation System
Straight-line operations:

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

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