Automation System
The program execution time:

None of these
All of these
will vary depending on the language used
must be slower than the fastest mechanical operation that is to be controlled
cannot be changed once the program is written

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Automation System
What is the process lag?

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

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