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

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

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Automation System
What is the process lag?

The lag in the error signal when the setpoint is changed.
All of these
The time it takes for the sensor to respond to a changed.
The time it takes for the mass of the process to respond to an input change.
None of these

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Automation System
Semiconductor devices:

usually have a very short MTBF (mean time between failure)
None of these
are less reliable than electro¬mechanical components
All of these
have a very short infant mortality period

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