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
(a) and (c)
error for a velocity input is always zero

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Automation System
A process controller:

All of these
can interface to digital and analog I/O
None of these
is useful in a continuous process control application
can solve a PID process control equation easily

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