Automation System
A solenoid:

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

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Automation System
The computer graphics system called SKETCHPAD was demonstrated at

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

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