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

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

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Automation System
What is proportional control?

The controller output varies continuously over a range
The gain is independent of offset error.
None of these
It has a discrete output for each error value
All of these

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