Automation System
One advantage of a PC in industrial control is that it:

is very difficult for the inexperienced programmer to understand
has a reliable long life compared to relay logic
is unreliable because there are no moving parts
None of these
All of these

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

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

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

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

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