Automation System
Flood guns bombard the phosphor surface of the tube in which one of the following types of CRT technology?

Raster scan CRT
None of these
Stroke CRT
Direct view storage tube
Refresh-vector CRT

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

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

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