Automation System
A stepping motor;

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

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Automation System
The "walk-through" method of programming a robot involves:

moving the robot from one location to another
physically moving the robot through all the motions it is to repeat
walking through your suggested procedure with your supervisor prior to programming
All of these
None of these

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