Automation System
Semiconductor devices:

All of these
None of these
usually have a very short MTBF (mean time between failure)
are less reliable than electro¬mechanical components
have a very short infant mortality period

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Automation System
Numerical control:

is a method for producing an exact number of parts per hour
is a method for controlling the operation of a machine by means of a set of instructions
None of these
applies only to milling machines
All of these

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Automation System
CAE and CAM are linked through:

assembly automation and tool production.
None of these
NC tape programming and automated design
parts production and testing
a common data base and communications system

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