Automation System
Robots consist of three basic components; power supply, control (memory) console, and:

coaxial cable
microcomputer
mechanical unit (arm)
None of these
software

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Automation System
What is offset error?

the difference between the controller output and the setting of the manipulated variable.
the difference between the control setpoint value and the actual value.
the difference between the sensor input and the absolute sensed parameter.
None of these
All of these

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Automation System
Stepping motors:

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

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