Hello students this page provides you with Computer Graphics MCQ-4
Q.1 Which image files are a lossy format?
GIF
MPEG
JPEG
PNG
Explanation
JPEG is a lossy format because it compresses images by permanently discarding some data to reduce file size.
Q.2 Refresh CRT consist of?
The electron gun assembly
The phosphor viewing surface
Glass wrapper
All of these
Explanation
A Refresh CRT includes an electron gun for emitting electrons, a phosphor screen for displaying the image, and a glass envelope to house the components in a vacuum.
Q.3 The information of the memory buffer typically consists of —– values?
12
character
color
None of these
Explanation
The memory buffer (or frame buffer) stores the color or intensity values for every pixel displayed on the screen.
Q.4 The quake one of the first fully 3D games was released in year?
1987
1975
1996
None of these
Explanation
Quake, developed by id Software, was released in 1996 and was a pioneer in real-time 3D rendering for video games.
Q.5 How many step process for creating a 3D animation?
1
2
3
4
Explanation
The process typically involves three main steps: Modeling (creating the object), Layout/Animation (movement), and Rendering (generating the final image).
Q.6 Vector graphics is composed of?
Pixels
Paths
Palette
None of these
Explanation
Vector graphics are based on mathematical paths (lines and curves) rather than a fixed grid of pixels.
Q.7 Which of the following is an output device?
GPS
Projector
Both A & B
OCR
Explanation
Both Projectors (visual output) and GPS units (providing location data output) serve as output devices in different contexts.
Q.8 Which of the following is an input device?
Sound Card
Projector
Video card
Sensors
Explanation
Sensors are input devices because they detect external physical inputs (like heat or light) and transmit them as data to the computer.
Q.9 Plotters is a?
Input Device
Output Device
Both A & B
None of these
Explanation
A plotter is a hardware device similar to a printer that outputs vector graphics by drawing lines on paper.
Q.10 JPEG stands for:
Joint Photo Experts Gross
Joint Photographic Experts Gross
Joint Photographic Experts Group
Joint Photographic Expression Group
Explanation
JPEG stands for Joint Photographic Experts Group, the name of the committee that developed the standard.
Q.11 The electron beam in a color picture tube is refreshed ——- times in a second to make video realistic?
30
25
40
80
Explanation
To maintain a flicker-free and realistic appearance in standard broadcast formats like PAL, a refresh rate of 25 frames per second is used.
Q.12 Raster graphics are composed of?
Pixels
Paths
Palette
None of these
Explanation
Raster images are composed of a grid of individual pixels, each containing specific color information.
Q.13 GPU means?
Graphics Program Unit
Graphics Processor Unit
Graphics Pixel Unit
None of these
Explanation
GPU stands for Graphics Processing Unit, which is the specialized processor designed to handle graphics and image calculations.
Q.14 Before image can be displayed on the screen it must be created by?
Computer Program
Computer frame
Computer data
None of these
Explanation
Graphics hardware requires instructions from a computer program to define and generate the image to be displayed.
Q.15 Which compression provide some loss of quality?
Loss less
Lossy
Cel based
Object based
Explanation
Lossy compression reduces file size by removing data that is less noticeable to humans, which results in a slight loss of quality.
Q.17 DVST means?
Direct view storage tube
Domain view storage tube
Direct view store tube
None
Explanation
DVST stands for Direct View Storage Tube, which is a type of CRT that stores picture information inside the tube.
Q.18 The brightness of each pixel is?
Compatible
Incompatible
Both A & B
None
Explanation
In some technical contexts regarding signal processing and pixel intensity levels, pixel brightness values may be considered incompatible across different display standards.
Q.19 Refers to the number of dots on the screen.
Refers Rate
Resolution
Color Depth
None
Explanation
Resolution is the term used to describe the total number of pixels (dots) that make up the image on a screen.
Q.20 Bresenham's Algorithm seeks to select the optimum raster locations that represent a:
Straight line
Circle line
Polygon
None of these
Explanation
Bresenham’s line algorithm is primarily used to determine the most accurate sequence of pixels to represent a straight line.
Related Link
- Computer Graphics MCQ