Automation System
Actuators are used to:

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

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Automation System
A semi-continuous operation means:

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

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