Automation System
Which technique enables the designer to mold and shape, rather than construct on object using a series of lines?

Wire-frame modeling
Solid modeling
Surface modeling
FEM (Finite Element Modeling)
None of these

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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
the digital controller cannot handle integral mode
None of these
All of these
the error is divided into discrete amounts

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