Automation System
Speech recognition:

is already widely used in industrial controls
All of these
will be used in more applications as the technology matures.
None of these
will never be used in industrial controls

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Automation System
Relay ladder logic is used in a PC because:

All of these
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
it is impossible to write a control program for a machine in any other logic
it is the best industrial control language ever developed.
None of these

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

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

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