Automation System
The coordinate system used to describe a workpiece:

is always two-dimensional
is defined with respect to a point on the machine
None of these
All of these
changes from part to part

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Automation System
An aneroid barometer

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

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