Automation System
Pressure sensors:

use capacitive variations to sense pressure
use an aneroid chamber with a variable resistance output
All of these
None of these
use the piezoresistive effect in strain gauge sensors

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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.
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.
Makes changes on the image by increasing the anode voltage.
None of these

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