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

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

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

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

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