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

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

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Automation System
A sequence controller:

performs on/off control functions in relation to time.
is difficult to program
is no longer in widespread use
is a mechanical only controller
None of these

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