Automation System
A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:

solid modeling
surface modeling
None of these
3-D modeling
2-D modeling

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Automation System
A venturi tube:

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

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Automation System
A stepping motor;

is a good choice where continuous rotation is needed
can index positional movement.
has a commutator
has a speed proportional to voltage input
None of these

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