What is a Cathode Ray Tube (CRT)?

Understanding Graphics and Input Devices

Quiz
•
Computers
•
12th Grade
•
Easy
Dr.Chandra Sekhar
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A Cathode Ray Tube (CRT) is a type of LED display.
A Cathode Ray Tube (CRT) is a vacuum tube that displays images by directing electron beams onto a phosphorescent screen.
A Cathode Ray Tube (CRT) is a solid-state device that emits light.
A Cathode Ray Tube (CRT) uses liquid crystals to display images.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe how a Raster Scan Display works.
A Raster Scan Display illuminates pixels in a systematic top-to-bottom and left-to-right pattern, refreshing the image multiple times per second.
A Raster Scan Display only refreshes the image once per minute.
A Raster Scan Display uses a circular pattern to illuminate pixels.
A Raster Scan Display operates by illuminating pixels randomly across the screen.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the advantages of Plasma displays over LCDs?
Plasma displays consume less power than LCDs.
Plasma displays are lighter and more portable than LCDs.
Advantages of Plasma displays over LCDs include better color accuracy, deeper blacks, wider viewing angles, faster response times, and more vibrant colors.
LCDs have better color accuracy than Plasma displays.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the basic functioning of a Liquid Crystal Display (LCD).
LCDs use only solid crystals to display images.
A Liquid Crystal Display (LCD) uses liquid crystals that align in response to electric currents to modulate light and create images.
Liquid crystals are heated to create images in an LCD.
LCDs rely on mechanical movement to change images.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of plotters in graphics?
To convert raster images into vector formats.
The primary use of plotters in graphics is to produce high-quality printed graphics and detailed drawings.
To create 3D models for virtual reality applications.
To enhance the color depth of digital images.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a printer differ from a plotter in terms of output?
A printer outputs designs on fabric, while a plotter outputs text on paper.
A printer only prints in black and white, while a plotter can print in color.
A printer is used for 3D printing, while a plotter is used for text documents.
A printer outputs text and images on paper, while a plotter outputs high-quality graphics and designs, often on larger media.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List two advantages of using a keyboard as an input device.
Increased risk of repetitive strain injuries.
1. Efficient data entry. 2. Tactile feedback for accurate typing.
Higher cost compared to other input devices.
Limited compatibility with software.
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