Automation System
For a type 2 system, the steady-state:

None of these
error for a step input is always zero
input for acceleration input is always non-zero
error for a velocity input is always zero
All of these

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Automation System
A semi-continuous operation means:

coffee breaks are allowed for the operator
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
None of these
a computer is a required part of the machine
the operation is continuous each shift, but stops between shifts

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