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

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

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Automation System
Relay ladder logic is used in a PC because:

most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
All of these
it is impossible to write a control program for a machine in any other logic
it is the best industrial control language ever developed.
None of these

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