Automation System
Resolution in a CRT refers to:

the number of addressable elements on the tube
the speed at which the monitor can accept data from the computer
the number of phosphor dots that react when hit by the electron beam
the number of pixels in each square centimeter
None of these

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A solenoid:

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

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Light sensors:

work in direct sunlight
never use infrared light as light source
None of these
cannot be used a s limit switches.
come in a wide variety of mounting styles

ANSWER DOWNLOAD EXAMIANS APP

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.
None of these
Uses an electron gun to continuously flood the surface of the tube.

ANSWER DOWNLOAD EXAMIANS APP