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

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

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Automation System
The refresh-vector CRT uses which of the following techniques?

Creates images on the screen by scanning straight-line vectors between selected points.
Uses an electron gun to continuously flood the surface of the tube.
Makes changes on the image by increasing the anode voltage.
None of these
The beam constantly travels across the screen to turn on/off a series of pixels.

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