Automation System
A solenoid:

is related to an aneroid
None of these
can be used only in de circuits
is spring operated
is widely used in industrial automation

ANSWER DOWNLOAD EXAMIANS APP

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

None of these
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.
Makes changes on the image by increasing the anode voltage.
Creates images on the screen by scanning straight-line vectors between selected points.

ANSWER DOWNLOAD EXAMIANS APP