Automation System
The program execution time:

will vary depending on the language used
All of these
cannot be changed once the program is written
None of these
must be slower than the fastest mechanical operation that is to be controlled

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Automation System
How is the integral mode implemented on a digital controller?

the error signal is summed over a discrete time interval and accumulated by the controller
All of these
the digital controller cannot handle integral mode
the error is divided into discrete amounts
None of these

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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
An operating system:

is useless in most control applications
All of these
can help reduce software development time
provides ability for other programmers to understand the software structure
None of these

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