Automation System
Ergonomics refers to:

the human aspect of the environment around the workstation as well as the workstation itself
the cost relationship of the workstation versus productivity
None of these
the technology involved in the workstation itself
the level of involvement the operator has with the workstation

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Automation System
A sequence controller:

performs on/off control functions in relation to time.
is no longer in widespread use
is a mechanical only controller
is difficult to program
None of these

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Automation System
What is the process lag?

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.
None of these
The time it takes for the sensor to respond to a changed.
All of these

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