Automation System
Productivity is defined as:

number of items manufactured per day
cost per unit
cost per day
None of these
output per man-hour of labour

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Automation System
A process controller:

is useful in a continuous process control application
None of these
can interface to digital and analog I/O
can solve a PID process control equation easily
All of these

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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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