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

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

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Automation System
Trend analysis:

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

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Automation System
A stepping motor;

has a commutator
is a good choice where continuous rotation is needed
has a speed proportional to voltage input
None of these
can index positional movement.

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Automation System
Straight-line operations:

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

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