Automation System
The coordinate system used to describe a workpiece:

is always two-dimensional
All of these
None of these
is defined with respect to a point on the machine
changes from part to part

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Automation System
Speech recognition:

All of these
None of these
is already widely used in industrial controls
will be used in more applications as the technology matures.
will never be used in industrial controls

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Automation System
Light sensors:

come in a wide variety of mounting styles
cannot be used a s limit switches.
never use infrared light as light source
None of these
work in direct sunlight

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