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

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

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Programmable controllers:

None of these
(a) and (c) above
are programmed using relay ladder logic
cannot perform functions other than relay logic
are widely used in many different industries

ANSWER DOWNLOAD EXAMIANS APP