Automation System
A venturi tube:

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

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Automation System
In raster-scan colour monitors, colour can be intensified by:

having each electron gun controlled by separate signal
using an in-line gun arrangement with a solid metal mesh
grouping the phosphor dots in a circular pattern
having each electron gun controlled by a composite signal
None of these

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Automation System
One of the major benefits of using CAD in tool design is that:

product design represents approximately one-half the engineering costs
there is better coordination in the materials-handling area
None of these
tool motions can be checked to see if there is interference between the tool and the object
it simplifies the trial-and-error method

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