Automation System
Digital signals:

have a frequency measured in units of hertz
None of these
can have three possible levels
are assigned values of 1 or 0 depending on the voltage level
have a sinusoidal shape.

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Automation System
A continuous process is:

used only for simple tasks
None of these
one that never shuts down
self-contained in that raw materials enter the process and an identifiable products exits the process.
used only with analog controllers.

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

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

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Automation System
Straight-line operations:

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

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