Automation System
Ergonomics refers to:

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

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Automation System
A semi-continuous operation means:

each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
a computer is a required part of the machine
None of these
the operation is continuous each shift, but stops between shifts
coffee breaks are allowed for the operator

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