Automation System
For a type 1 system, the steady-state:

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

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Automation System
An aneroid barometer

can measure only atmospheric pressure
measures pressure by sensing deflection of an evacuated chambers.
None of these
can be used to measure gas or liquid flow rates
is very unreliable

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