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

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

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Automation System
A dc servo motor:

can provide precise position control
uses a tachometer for speed feedback
uses a variable dc voltage for speed control
None of these
All of these

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