Automation System
An aneroid barometer

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

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Automation System
Microcomputer-based control sys-tems

None of these
All of these
will have more standard industrial application software available in the future.
will tend to increase in cost.
will just keep their present capability

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