Automation System
For a type 0 system, the steady-state:

None of these
input for acceleration input is always non-zero
error for a step input is always zero
(a) and (c)
error for a velocity input is always zero

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

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

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