Automation System
A venturi tube:

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

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Automation System
Ergonomics refers to:

the technology involved in the workstation itself
the level of involvement the operator has with the workstation
None of these
the human aspect of the environment around the workstation as well as the workstation itself
the cost relationship of the workstation versus productivity

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