Automation System
The computer graphics system called SKETCHPAD was demonstrated at

Imperial college of Science and Technology, London, 1973
University of Aston, Birmingham, 1960
Massachusetts Institute of Technology in 1963
None of these
Cranfield Institute of Technology, London, 1962

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Automation System
A venturi tube:

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

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