Automation System
A Hall effect switch is usually used to:

None of these
measure temperature
sense the presence of a magnetic object.
measure voltage
sense a vacuum

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

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

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Automation System
Stepping motors:

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

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