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

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

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Automation System
Direct Numerical Control means:

None of these
using one computer to control several machines
eliminating computers from the manufacturing process
using several computers to control one large machine
complete elimination of a need for a human operator.

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Automation System
Today, programmable controllers:

can be cost effective even when replacing just a few relays
are more powerful then the first controllers on the market
None of these
All of these
are relatively low cost compared with the original digital equipment available for industrial control

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