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

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

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Automation System
What is the process lag?

The time it takes for the mass of the process to respond to an input change.
All of these
The lag in the error signal when the setpoint is changed.
The time it takes for the sensor to respond to a changed.
None of these

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