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

NC tape programming
software
logic
None of these
computer graphics workstation

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Automation System
Semiconductor devices:

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

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Automation System
A venturi tube:

can be used to measure gas or liquid flow rates
is extremely difficult to use
is made only of metal
measures the presence of a liquid
None of these

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