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

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

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Automation System
D/A (digital to analog) conversion:

None of these
has to be sampled at 1/2 the highest input frequency
must be fed through a filter to reproduce the original signal accurately
both (b) and (c)
results in a binary code as the final output

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Automation System
Trend analysis:

can improve control system response
requires a very expensive system to implement
None of these
is a brand new concept
is used only in financial planning

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