Automation System
Four basic elements are required for an automated machine tool or production process. They are: input interface, memory, output interface and:

NC tape programming
computer graphics workstation
None of these
logic
software

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Automation System
What is the process lag?

None of these
The time it takes for the mass of the process to respond to an input change.
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.

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