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

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

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Automation System
A stepping motor;

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

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Automation System
A solenoid:

is widely used in industrial automation
is spring operated
can be used only in de circuits
None of these
is related to an aneroid

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