Automation System
Actuators are used to:

All of these
sense an object
None of these
activate a chemical
make a mechanical movement

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Automation System
What is the process lag?

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.
The lag in the error signal when the setpoint is changed.
None of these

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Automation System
Most industrial control applications:

can be solved using more than one method of control
All of these
can be done more reliably using solid-state methods
must have the process specified correctly to be successful
None of these

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