Automation System
A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:

2-D modeling
solid modeling
None of these
3-D modeling
surface modeling

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Automation System
Digital signals:

None of these
have a frequency measured in units of hertz
are assigned values of 1 or 0 depending on the voltage level
have a sinusoidal shape.
can have three possible levels

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

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

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