Automation System
Which of the following editor(s) is(are) incorporated into general CAD system?

All of these
Point Editor
Macro and symbol Editor
None of these
Line Editor

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Automation System
How is the integral mode implemented on a digital controller?

All of these
the error signal is summed over a discrete time interval and accumulated by the controller
None of these
the error is divided into discrete amounts
the digital controller cannot handle integral mode

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

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

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