Automation System
Four basic elements are required for an automated machine tool or production process. They are: input interface, memory, output interface and:

computer graphics workstation
logic
NC tape programming
software
None of these

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Automation System
A sequence controller:

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

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Automation System
A solenoid:

None of these
is related to an aneroid
is spring operated
can be used only in de circuits
is widely used in industrial automation

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