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

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

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Automation System
What is the difference between integral and derivative control?

All of these
derivative control does not eliminate offset error
integral control has slower response to an error signal.
derivative control responds to a change in the rate of change in the error signal
None of these

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