Automation System
A Hall effect switch is usually used to:

None of these
sense the presence of a magnetic object.
measure voltage
measure temperature
sense a vacuum

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

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

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