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

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

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Automation System
A venturi tube:

can be used to measure gas or liquid flow rates
is extremely difficult to use
None of these
is made only of metal
measures the presence of a liquid

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