Automation System
Most industrial control applications:

can be solved using more than one method of control
must have the process specified correctly to be successful
None of these
All of these
can be done more reliably using solid-state methods

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Automation System
Stepping motors:

can run both clockwise and counterclockwise
do not require commutators
can be built to index different amounts by changing the pole configuration
All of these
can run at varying speeds

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Automation System
Straight-line operations:

must be limited to two per workpiece
All of these
can include diagonal cuts if they aren't curved
must be parallel to one of the axes of the coordinate system
None of these

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