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Computer Graphics - Quiz(MCQ)
1 .
Who is the father of Computer Graphics?
A)
Nikola Tesla
B)
Marie Curie
C)
Ivan Sutherland
D)
Ada Lovelace

Correct Answer :   Ivan Sutherland

Explanation : Ivan Sutherland is considered the father of Computer Graphics. He is the inventor of an interactive graphics system called sketchpad in 1963.

2 .
GUI Stands for_________.
A)
Graphical User Interaction
B)
Graphical User Interface
C)
Graphics Uniform Interaction
D)
None of the above

Correct Answer :   Graphical User Interface

Explanation : GUI is an acronym of Graphical User Interface. It refers to an interface that allows one to interact with electronic devices like computers and tablets through graphic elements.

3 .
Graphics can be________.
A)
Drawing
B)
Simulation
C)
Movies, photographs
D)
All of the above

Correct Answer :   All of the above

Explanation : Computer Graphics is the creation of pictures with the help of a computer. The end product of the computer graphics is a picture; it may be a business graph, drawing, and engineering. In computer graphics, two or three-dimensional pictures can be created that are used for research.

4 .
Which of the following statements define Computer Graphics?
A)
It refers to designing images
B)
It refers to designing plans
C)
It means designing computers
D)
None of the above

Correct Answer :   It refers to designing images

Explanation : Computer Graphics refers to designing or generating images using computers.

5 .
Which of the following are the features of Computer Graphics?
A)
Creation and manipulation of graphics by computer
B)
Creation and deletion of images by computer only
C)
Creation of artificial images by computer only
D)
Deletion and manipulation of graphical images by computer

Correct Answer :   Creation and manipulation of graphics by computer

Explanation : Creation and manipulation of graphics (artificial images) by computer are the features of Computer Graphics.

6 .
Which of the following is a Computer Graphics type?
A)
Scalar only
B)
Raster and Scalar
C)
Raster and Vector
D)
All of the above

Correct Answer :   Raster and Vector

Explanation : Vector graphics are computer-rendered visual art that follows a mathematical formula. Raster images are made up of thousands of tiny pixels, making them resolution-dependent and ideally suited for photo editing.

7 .
Which of the following plane is used for 2D Transformations?
A)
One-dimensional Plane
B)
Two-dimensional Plane
C)
Three-dimensional Plane
D)
Four-dimensional Plane

Correct Answer :   Two-dimensional Plane

Explanation : A two-dimensional plane is used for 2D transformations. Transformations are useful for modifying an object’s position, size, orientation, and shape, among other things.

8 .
What is the range of the pixels in a Grayscale images?
A)
0 - 1
B)
210
C)
0 - 255
D)
None of the above

Correct Answer :   0 - 255

Explanation : The pixel value of the grayscale image defines the brightness of the pixel. Here, the pixel value is stored as a byte value, i.e. an 8-bit value. Hence, the value of every pixel in a grayscale image ranges from 0 to 255.

9 .
The RGB image is known as the true color image. What does RGB stand for?
A)
Real grey Black Image
B)
Red Green Blue Image
C)
Red greyed Background Image
D)
None of the above

Correct Answer :   Red Green Blue Image

Explanation : The RGB Image which is also known as the true color image or the tri-color image stands for Red- Green- Blue image. This is because an RGB image can be viewed as three different color images: Red Green and Blue.

10 .
What is the pixel range for an RGB image?
Or
What is the minimum and maximum possible value for each of the pixels of an RGB image?
A)
0 - 23
B)
0 - 224
C)
0 - 1
D)
None of the above

Correct Answer :   None of the above

Explaination : The RGB image has three different values for each color band, and the range of each color is 0 to 255. Hence, an RGB image is stored in a 3-dimensional array where each dimension represents one of the colors, with a value lying between 0 - 255.

11 .
CAD stands for_______.
A)
Computer-aided design
B)
Car art design
C)
Computer art design
D)
None of the above

Correct Answer :   Computer-aided design

Explanation : CAD is software used by engineers, architects, artists, drafters to make a technical illustration in two-dimensional (2D) and three-dimensional (3D). It is a combination of hardware and software that makes engineers designs everything.

12 .
The components of Interactive computer graphics are________.
A)
A monitor
B)
Frame buffer
C)
Display controller
D)
All of the above

Correct Answer :   All of the above

Explanation : Interactive computer graphics consists of three components that are:

* Frame Buffer or Digital Memory
* A Monitor likes a home T.V. set without the tuning and receiving electronics.
* Display Controller or Video Controller: It passes the contents of the frame buffer to the monitor.

13 .
A user can make any change in the image using______.
A)
Interactive computer graphics
B)
Non-Interactive computer graphics
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Interactive computer graphics

Explanation : In interactive Computer Graphics, the user has some control over the picture, i.e., the user can make any change in the produced image. One example of it is the ping-pong game.

14 .
What is a pixel mask?
A)
a string containing only 0's
B)
a string containing only 1's
C)
a string containing two 0's
D)
a string containing both 1's and 0's

Correct Answer :   a string containing both 1's and 0's

Explanation : The pixel mask is a string that contains the digits 1's and 0's to represent the positions to plot along the line path.

15 .
Which of the following is a Computer Graphics Curve?
A)
Bezier Curves
B)
Implicit Curves
C)
Explicit Curves
D)
All of the above

Correct Answer :   All of the above

Explanation : A curve is made up of an unlimited number of points. Except for endpoints, each point has two neighbors. Explicit, implicit, Bezier and parametric curves are the three types of curves.

16 .
Who is the first user of computer graphics?
A)
Ada Lovelace
B)
William Fetter
C)
Nicholas Williams
D)
Ivan Edward Sutherland

Correct Answer :   William Fetter

Explanation : In 1960s William Fetter used computer graphics to create cockpit drawing. He along with Verne Hudson did research on computer graphics.

17 .
Which of the following is the purpose for using clipping in computer graphics?
A)
copying
B)
zooming
C)
removing objects and lines
D)
adding graphics

Correct Answer :   removing objects and lines

Explanation : Clipping is a technique for removing objects, lines, and line segments that are outside of the viewing pane. Several types of clippings are used in computer graphics like:

* Point Clipping
* Line Clipping
* Area Clipping (Polygon)
* Curve Clipping
* Text Clipping
* Exterior Clipping

18 .
In a graphical system, an array of pixels in the picture are stored in which of the following locations?
A)
Memory
B)
Processor
C)
Frame buffer
D)
All of the above

Correct Answer :   Memory

Explanation : The main purpose of using a framer buffer is to store pixels.

19 .
Curves in computer graphics is primarily used for which of the following function?
A)
Copying a picture
B)
Zooming in a picture
C)
Zooming out a picture
D)
To draw different types of objects onto the screen

Correct Answer :   To draw different types of objects onto the screen

Explanation : We frequently need to draw several types of things onto the screen in computer graphics. Objects are not always flat, and we must draw curves many times in order to draw an object.

20 .
Which of the following options is not correct according to the definition of Computer Graphics?
A)
Computer Graphics is used for animation purposes.
B)
Computer graphics can improve the sound quality of a video
C)
Computer graphics can be used to provide better user interface.
D)
None of the above

Correct Answer :   Computer graphics can improve the sound quality of a video

Explanation : Computer graphics has nothing to do with the audio of any device. Its sole purpose is to deal with the imaging and animations part.

21 .
PPI stands for_____.
A)
Pixel per inch
B)
Pixels per image
C)
Photos per instruction
D)
None of the above

Correct Answer :   Pixel per inch

Explanation : PPI stands for number of pixels that are present per inch in image.

22 .
The higher number of pixels gives us a ____ image.
A)
Worst
B)
Smaller
C)
Better
D)
None of the above

Correct Answer :   Better

Explanation : More number of pixels makes a better resolution of an image.

A digital camera uses pixel elements (also known as a pixel) to capture images.

23 .
Which one of the following is the primarily used output device?
A)
Printer
B)
Speaker
C)
Scanner
D)
Video monitor

Correct Answer :   Video monitor

Explanation : The video monitor is a widely used output device.

24 .
_____ types of translation are present in computer graphics.
A)
3
B)
4
C)
5
D)
6

Correct Answer :   3

Explanation : There are three types of translation techniques in computer graphics: point translation (which deals with a single point), line translation (which deals with a line), and polygon translation (which deals with a polygon) (deals with a shape).

25 .
Bitmap is a collection of ________ that describes an image.
A)
bits
B)
pixels
C)
colors
D)
algorithms

Correct Answer :   pixels

Explanation : A bitmap is a set of pixels that make up an image. It’s a sort of computer graphics that lets you store and show photographs on your computer.

26 .
Which of the following devices provides positional information to the graphics system?
A)
Input devices
B)
Output devices
C)
Pointing devices
D)
Both Input devices and Pointing devices

Correct Answer :   Both Input devices and Pointing devices

Explanation : Input devices provide positional information to the system they are often called pointing devices.

27 .
Which of the following is defined as the number of pixels stored in the frame buffer of a graphics system?
A)
Depth
B)
Resolution
C)
Resalution
D)
None of the above

Correct Answer :   None of the above

Explanation : The Resolution is defined as the number of pixels.

28 .
Which of the following is a primary output device of a graphics system?
A)
Printer
B)
Scanner
C)
Video monitor
D)
Neither Scanner nor Video monitor

Correct Answer :   Video monitor

Explanation : The video monitor is the commonly used output device since it displays the images on the screen.

29 .
Which one of the following terms is used for the area of the computer captured by an application?
A)
Viewport
B)
Display
C)
Window
D)
None of the above

Correct Answer :   Viewport

Explanation : The display method of the part selected or the design in which the selected element is viewed is called a viewport. An area on the display device to which a window is mapped is known as a viewport.

30 .
Aspect Ratio can be defined as______.
A)
of pixels
B)
The ratio of the vertical points to horizontal points
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   The ratio of the vertical points to horizontal points

Explanation : Aspect ratio is the ratio of the vertical points to horizontal points essential to produce equivalent length lines in both directions on the screen.

31 .
Which of the following is not the pattern of line?
A)
Dark line
B)
Dotted line
C)
Dashed line
D)
All of the above

Correct Answer :   Dark line

Explanation : Dark line is not the pattern of the line.

32 .
DDA stands for_____.
A)
Direct Difference Analyzer
B)
Data Differential Analyzer
C)
Direct Differential Analyzer
D)
Digital Differential Analyzer

Correct Answer :   Digital Differential Analyzer

Explanation : DDA is an acronym of Digital Differential Analyzer. It is an incremental method of scan conversion of lines.

33 .
From the given list of options, which one is the accurate and efficient line-generating algorithm?
A)
DDA algorithm
B)
Midpoint algorithm
C)
Bresenham's Line algorithm
D)
None of the above

Correct Answer :   Bresenham's Line algorithm

Explanation : Bresenham's line algorithm is an efficient method because it involves only integer addition, subtractions, and multiplication operations. These operations can be performed very rapidly, so lines can be generated quickly.

34 .
The process of positioning an object along a straight line path from one coordinate point to another is called______.
A)
Shearing
B)
Translation
C)
Reflection
D)
Transformation

Correct Answer :   Translation

Explaination : A translation is used to an object by repositioning it along a straight line path from one co-ordinate point to another.

35 .
Which of the following equation is used in 2D translation to move a point(x,y) to the new point (x',y')?
A)
x' = x + ty and y' = y + tx
B)
x' = x - tx and y' = y - ty
C)
x' = x + tx and y' = y + ty
D)
x' = x + tx and y' = y - ty

Correct Answer :   x' = x + tx and y' = y + ty

Explaination : We translate a 2-D point by adding translation distance, tx, and ty, to the original coordinates position (x,y) to move the points to a new position (x', y').

x' = x + tx

y' = y + ty.

36 .
Which of the following is used in graphics workstations as input devices to accept voice commands?
A)
Touch panels
B)
Speech recognizers
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Speech recognizers

Explanation : Speech recognizers allow users to issue voice commands.

37 .
What is the use of voice system input?
A)
To enter data
B)
To initiate graphics operation
C)
To initiate graphics operation and also to enter data
D)
None of the above

Correct Answer :   To initiate graphics operation and also to enter data

Explanation : The voice system input is utilized to start graphics operations or to enter data.

38 .
Which of the following is defined as the process of elimination of parts of a scene outside a window or a viewport?
A)
clipping
B)
cutting
C)
editing
D)
plucking

Correct Answer :   clipping

Explanation : Clipping is the process of removing excess content from a project. Clipping is a way of selectively enabling or disabling rendering activities within a defined region of interest in computer graphics.

39 .
Which of the following is known as the window opened on the raster graphics screen in which the image will be displayed?
A)
World window
B)
Interface window
C)
World co-ordinate system
D)
Screen co-ordinate system

Correct Answer :   Interface window

Explanation : In layman’s terms, it’s referred to as a graphical user interface (GUI). Users can interact with electronic equipment by using graphical icons and visual indicators like secondary notation.

40 .
Which of the following operations can be used to zoom in or out around any axis on a three-dimensional object from its original position?
A)
Scaling
B)
Rotation
C)
Shearing
D)
Translation

Correct Answer :   Scaling

Explaination : Scaling is the process of changing or modifying the size of objects in computer graphics. The object’s size can be increased or decreased via scaling.

41 .
The process of repositioning an object along a circular path is called____.
A)
Scaling
B)
Translation
C)
Rotation
D)
None of the above

Correct Answer :   Rotation

Explanation : Rotation is a process of changing the angle of the object. Rotation can be clockwise or anticlockwise.

42 .
Which of the following is must be specified to generate a rotation?
A)
Co-ordinates
B)
Rotational distance
C)
Both (A) and (B)
D)
Rotation angle

Correct Answer :   Rotation angle

Explanation : For rotation, we have to specify the angle of rotation and rotation point. The rotation point is also known as pivot point.

43 .
A positive value of the rotation angle_____.
A)
rotates an object in the clockwise direction
B)
rotates an object in the counter-clockwise direction
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   rotates an object in the counter-clockwise direction

Explanation : The positive value of the pivot point (rotation angle) rotates an object in a counter-clockwise (anti-clockwise) direction.

44 .
Which of the following transformation is used for altering the object's size?
A)
Scaling
B)
Rotation
C)
Translation
D)
None of the above

Correct Answer :   Scaling

Explanation : Scaling is used to alter or change the size of objects. The change is done using scaling factors.

45 .
What happens if the values of scaling factors sx and sy less than 1 (i.e., sx<1 and sy<1)?
A)
Increase the object's size
B)
No change in the object's size
C)
 Reduce the object's size
D)
None of the above

Correct Answer :    Reduce the object's size

Explaination : If scaling factors are less than one, the size of the object will be reduced.

46 .
In which of the following case, the uniform scaling will be produced?
A)
Values of scaling factors sx and sy are unequal.
B)
Values of scaling factors sx and sy are equal.
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Values of scaling factors sx and sy are equal.

Explanation : If the values of scaling factors sx and sy are equal, it is called Uniform Scaling.

47 .
The Cohen-Sutherland algorithm divides the two-dimensional space in how many regions?
A)
3
B)
5
C)
9
D)
17

Correct Answer :   9

Explanation : If the line is neither a visible case nor an invisible case, then it will be considered to be the clipped case.

The Cohen-Sutherland algorithm will divide the 2D space into nine regions.

All nine regions are assigned codes. Each code is of 4 bits. If both endpoints of the line have end bits zero, then the line is considered to be visible.

48 .
Which of the following is defined as the drawing of number of copies of the same image in rows and columns across the interface window so that they cover the entire window?
A)
Tiling
B)
Panning
C)
Roaming
D)
Zooming

Correct Answer :   Tiling

Explaination : ‘Tilling’ is the process of drawing several copies of the same image in rows and columns across the interface window until the entire window is covered. In computer graphics, the window remains static while the viewpoint is modified multiple times to accomplish tiling.

49 .
How many axes do 3D graphics consist of?
A)
Two axes
B)
Three axes
C)
Five axes
D)
None of the above

Correct Answer :   Three axes

Explanation : The x-axis, y-axis, and z-axis are the three axes that make up a three-dimensional graphic. The length, breadth, and height of a three-dimensional object are represented by these axes.

50 .
Which of the following is the most commonly used boundary representation for a 3-dimensional graphics object?
A)
Data polygon
B)
System polygon
C)
Volume polygon
D)
Surface polygon

Correct Answer :   Surface polygon

Explanation : The most common border representation for a 3-D graphics item is a surface polygon. This surface polygon encloses the object’s inside. A set of polygons is maintained for a description of the object in this way of representation.

51 .
Which of the following is the process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer?
A)
Scan conversion
B)
Encoding
C)
Rasterization
D)
True color system

Correct Answer :   Scan conversion

Explaination : The digitization of a picture definition into a collection of pixel-intensity for storage in the frame buffer process is called scan conversion.

52 .
Which of the following is commonly known as frame buffer on a black and white system with one bit per pixel?
A)
Bitmap
B)
Pix map
C)
Multi map
D)
All of the above

Correct Answer :   Bitmap

Explanation : The bit map frame buffer is always 1 bit per pixel.

53 .
The 4-bit code of the bottom-region among the nine regions divided using the Cohen-Sutherland algorithm?
A)
0000
B)
0101
C)
0110
D)
0010

Correct Answer :   0110

Explanation : The 4-bit code of the bottom-right region amongst the nine regions divided by the Cohen-Sutherland algorithm is 0110.

54 .
According to the Cohen-Sutherland algorithm, where the line lies, if the 4-bit code of both ends is 0000, and also the logical OR gives 0000?
A)
Completely outside
B)
Completely inside
C)
Half outside half inside
D)
None of the above

Correct Answer :   Completely inside

Explaination : The line will be completely visible if both end codes are 0000, and the result of their logical OR also 0000.

55 .
Which one of the following is the most commonly used and basic input device?
A)
Mouse
B)
Keyboard
C)
Printer
D)
Scanner

Correct Answer :   Keyboard

Explanation : The most commonly used input device is a keyboard. The data is entered by pressing the set of keys. All keys are labeled. A keyboard with 101 keys is called a QWERTY keyboard.

56 .
Which of the following device is used for the 3D positioning of an object?
A)
Mouse
B)
Trackball
C)
Spaceball
D)
All of the above

Correct Answer :   Spaceball

Explanation : Spaceball is used for the three-dimensional positioning of the object.

57 .
Which is not the input device?
A)
Mouse
B)
Trackball
C)
Keyboard
D)
Impact printers

Correct Answer :   Impact printers

Explanation : The printers that print the characters by striking against the ribbon and onto the papers are known as Impact Printers.

58 .
Which of the following is an example of the impact device?
A)
Line printer
B)
Inkjet printer
C)
Laser printer
D)
None of the above

Correct Answer :   Line printer

Explanation : Line printers are the impact printers that print one line at a time. It is a high-speed impact printer as it can print 500 to 3000 lines per minute. Drum printer and chain printer are examples of line printers.

59 .
Which of the following allows us to select the screen positions with the touch of a finger?
A)
Touch panel
B)
Mouse
C)
Trackball
D)
None of the above

Correct Answer :   Touch panel

Explanation : Touch Panels is a type of display screen that has a touch-sensitive transparent panel covering the screen. A touch screen registers input when a finger or other object comes in contact with the screen.

60 .
Which is a common device for painting or selecting the object's co-ordinate positions?
A)
Keyboard
B)
Digitizer
C)
Touch panel
D)
Image scanner

Correct Answer :   Digitizer

Explanation : The digitizer is an operator input device, which contains a large, smooth board & an electronic tracking device, which can be changed over the surface to follow existing lines. The electronic tracking device contains a switch for the user to record the desire x & y coordinate positions. The coordinates can be entered into the computer memory or stored or an off-line storage medium such as magnetic tape.

61 .
Which of the following algorithm is a faster method for calculating pixel positions?
A)
Mid-point algorithm
B)
Parallel line algorithm
C)
DDA line algorithm
D)
Bresenham’s line algorithm

Correct Answer :   DDA line algorithm

Explanation : The fastest method DDA for calculating pixel positions is a faster method.

62 .
If the boundary is specified in a single color, and if the algorithm proceeds pixel by pixel until the boundary color is encountered is known as_______
A)
Flood-fill algorithm
B)
Scan-line fill algorithm
C)
Parallel curve algorithm
D)
Boundary-fill algorithm

Correct Answer :   Boundary-fill algorithm

Explaination : This algorithm proceeds outward pixel by pixel until the boundary color is encountered.

63 .
Which of the following is used for 3D positioning and modeling, animation, and other application?
A)
Trackball
B)
Space ball
C)
Control Key
D)
None of the above

Correct Answer :   Space ball

Explanation : A space ball is a 3D positioning device.

64 .
Which of the following can be used to determine the position on the data tablet?
A)
Coded pulse
B)
Signal strength
C)
Strip microphones
D)
Either Signal strength or coded pulse

Correct Answer :   Either Signal strength or coded pulse

Explanation : Either Signal strength or coded pulse determines the position on the data tablet.

65 .
Grayscale is used for_____.
A)
Random scan display
B)
Monitors with color capability
C)
Monitors with no color capability
D)
All of the above

Correct Answer :   Monitors with no color capability

Explanation : Grayscale images are monochrome images; means they have only one color. Grayscale images do not contain any information about color. Each pixel determines available different grey levels.

66 .
Clipping in computer graphics is primarily used for_____.
A)
copying
B)
zooming
C)
removing objects and lines
D)
All of the above

Correct Answer :   removing objects and lines

Explanation : When we have to display a large portion of the picture, then not only scaling & translation is necessary, the visible part of the picture is also identified. For deciding the visible and invisible portion, a particular process called clipping is used. Clipping determines each element into the visible and invisible portions. The visible portion is selected. An invisible portion is discarded.

67 .
Random scan systems are used for_____.
A)
Line drawing application
B)
Pixel drawing application
C)
Color drawing application
D)
None of the above

Correct Answer :   Line drawing application

Explanation : Random Scan System uses an electron beam that operates like a pencil to create a line image on the CRT screen. The picture is constructed out of a sequence of straight-line segments.

68 .
How many phosphor color dots at each pixel position in a shadow mask CRT?
A)
2
B)
3
C)
7
D)
12

Correct Answer :   3

Explanation : A shadow mask CRT has 3 phosphor color dots at each pixel position.

69 .
Shadow mask method is used in_____.
A)
Raster scan system
B)
Random scan system
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Raster scan system

Explanation : Shadow Mask Method is commonly used in Raster-Scan System because they produce a much wider range of colors than the beam-penetration method.

70 .
In which of the following CRT methods, there is an occurrence of convergence problem?
A)
Beam penetration
B)
Shadow mask method
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Shadow mask method

Explanation : The convergence problem occurs in the shadow mask method of the color CRT monitors. It is one of the limitations of the shadow mask method.

71 .
Which of the following type of perspective projection is also called "Angular Perspective"?
A)
Four-Point
B)
Three-point
C)
Two-point
D)
One-point

Correct Answer :   Two-point

Explanation : “Angular Perspective” is another name for Two-Point. The two vanishing points on the line in a two-point perspective form an angle between them, which is why it is also known as angular perspective.

72 .
Which of the following type of perspective projection is used in drawings of railway lines?
A)
Four-point
B)
Three-point
C)
Two-point
D)
One-point

Correct Answer :   One-point

Explanation : The One Point projection is commonly used to depict highways, railroad tracks, and buildings. Only one vanishing point on the horizon line is present in a One-Point perspective, which aids in the creation of railway tracks.

73 .
Which of the following representation represents a three-dimensional object?
A)
Point
B)
Polygon
C)
Equation
D)
Function

Correct Answer :   Equation

Explanation : An equation representation can be used to represent a three-dimensional entity. Three variables, x, y, and z, and four coefficients, A, B, C, and D, make up the equation for a three-dimensional object.

74 .
Which part of a picture is considered and saved in exterior clipping?
A)
Picture which is outside the view window
B)
Picture which is inside the view window
C)
We don’t consider the picture in exterior clipping
D)
Picture which is on the edges of the view window

Correct Answer :   Picture which is outside the view window

Explanation : The image beyond the view window is examined and preserved throughout the external cutting procedure. The portion of the image that is visible through the view window is discarded. The external clipping method is the polar opposite of the text and curve clipping methods.

75 .
Which of the following clipping process handles the clipping of strings?
A)
Curve Clipping
B)
Text Clipping
C)
Shape Clipping
D)
Exterior Clipping

Correct Answer :   Text Clipping

Explanation : Text Clipping is the technique that manages string clipping. It’s the method for determining which parts of the string should be kept depending on their position in the view window. Text Clippings come in a variety of forms, such as all or none character clipping, all or none string clipping, and so on.

76 .
Which of the following algorithm can be used to clip a polygon in 3D space?
A)
Vatti Clipping Algorithm
B)
Weiler Atherton Algorithm
C)
Polygon in 3D space cannot be clipped
D)
Greiner Hormann Clipping Algorithm

Correct Answer :   Weiler Atherton Algorithm

Explanation : Weiler Atherton Method is a 2D algorithm that may also be utilised in 3D space. It is primarily utilised in 2D space, but with the help of Z-ordering, it can also be used in 3D space. The Greiner Hormann Clipping algorithm and the Vatti Clipping method only function in 2D space.

77 .
Which of the following uses the Beam penetration method?
A)
Random scan system
B)
Raster scan system
C)
Both (A) and (B)
D)
None of the above

Correct Answer :   Random scan system

Explanation : The Beam-Penetration method has been used with random-scan monitors.

78 .
Plasma panel is a type of ________.
A)
Printer
B)
Non-Emissive display
C)
Emissive display
D)
None of the above

Correct Answer :   Emissive display

79 .
Which of the following algorithm is used to fill the interior of a polygon?
A)
Boundary fill algorithm
B)
Scan line polygon fill algorithm
C)
Flood fill algorithm
D)
All of the above

Correct Answer :   Flood fill algorithm

Explanation : When the boundary is of many colors and the interior is to be filled with one color, the flood fill algorithm is used.

80 .
Which of the following is defined as the sampling of object characteristics at a high resolution and displaying the result at a lower resolution?
A)
Anti-aliasing
B)
Post-filtering
C)
Super-sampling
D)
Super-sampling or Post-filtering

Correct Answer :   Super-sampling or Post-filtering

Explaination : By computing intensities and combining findings to create pixel intensities, super-sampling is also known as Post-filtering.

81 .
Which of the following is the correct full form of the NLN line clipping algorithm?
A)
Nicholl-Lee-Nicholl algorithm
B)
Nicholai-Lee-Nicholl algorithm
C)
Nicholl-Liang-Nicholl algorithm
D)
Nicholai-Liang-Nicholl algorithm

Correct Answer :   Nicholl-Lee-Nicholl algorithm

Explanation : The full form of the NLN clipping algorithm is the Nicholl-Lee-Nicholl algorithm. It is a fast method of clipping.

82 .
How is the line path on the polygon area for a 45% line?
A)
Centered
B)
Vertical
C)
Horizontal
D)
None of the above

Correct Answer :   Vertical

Explanation : Only if a line is 45 percent is the line path centered on the polygon region.

83 .
'Skala' is an example of which of the following type of clipping?
A)
curve clipping
B)
line clipping
C)
point clipping
D)
polygon clipping

Correct Answer :   line clipping

Explanation : Skala is a clipping procedure that can be used to clip a line or a line segment against a rectangular window as well as a convex polygon. Its algorithm is based on duality and homogeneous coordinates.

84 .
Which of the algorithm is used to color a pixel if it is not colored and leaves it if it is already filled?
A)
Flood fill algorithm
B)
Scan line polygon fill algorithm
C)
Boundary fill algorithm
D)
All of the above

Correct Answer :   Boundary fill algorithm

Explanation : The Boundary fill algorithm checks whether the boundary pixels or adjacent pixels are colored or not. It leaves it, if the adjacent pixel is already filled or colored; otherwise, fill it.

85 .
A spline can be defined as_____.
A)
Curved strip
B)
A smooth curve is drawn using a pencil.
C)
A flexible strip used to generate a smooth curve through a designated set of points.
D)
None of the above

Correct Answer :   A flexible strip used to generate a smooth curve through a designated set of points.

Explanation : The name spline is a flexible strip used to generate a smooth curve through a designated set of points. In computer Graphics, the name spline curves define any combined curve creates with polynomial portions fulfilling specified continuity methods at the edge of the pieces.

86 .
Which of the following are the 2d color models?
A)
RGB and CMYK
B)
RGB and CMG
C)
RGB and CMK
D)
All of the above

Correct Answer :   RGB and CMYK

Explanation : There are many color models. Some of them are RGB, CMYK, YIQ, HSV, and HLS, etc. RGB stands for Red, Green, and Blue. This color space is widely used in computer graphics. RGB are the main colors from which many colors can be made.

CMYK stands for Cyan, Magenta, Yellow and Black. CMYK color model is used in electrostatic and ink-jet plotters, which deposits the pigmentation on paper.

87 .
RGB color model is used for_______.
A)
Printing
B)
Painting
C)
Sketching
D)
Computer display

Correct Answer :   Computer display

Explanation : The main objective of the RGB color model is for the sensing, defining, and display of pictures in electronic systems, such as televisions and computers, though it has also been utilizing in conventional photography.

88 .
Which of the following color will generate with the intersection of three primary RGB colors?
A)
Green
B)
Dark red
C)
Dark blue
D)
White

Correct Answer :   White

Explanation : RGB stands for Red, Green, and Blue. RGB are the main colors from which many colors can be made. The Intersection of three colors (red, green, and blue) in the RGB model will produce the white color.

89 .
The intersection of primary colors in the CMYK color model will generate the______.
A)
Green
B)
Black color
C)
Dark red
D)
White color

Correct Answer :   Black color

Explanation : A color model described with the primary colors cyan, magenta, and yellow (CMY) is useful for defining color output to hard-copy devices. The intersection of primary colors in the CMYK color model will produce the black color.

90 .
Select the set of colors produced in the beam-penetration method of the color CRT_______.
A)
Red, Green, Blue
B)
Cyan, Magenta, Blue
C)
Green, Black, Orange
D)
Red, Green, Orange, Yellow

Correct Answer :   Red, Green, Orange, Yellow

Explanation : Beam penetration method in color CRT produces four colors only, red, green, orange and yellow. A beam of slow electrons excites the outer red layer only; hence, the screen only shows red color. A beam of high-speed electrons excites the inner green layer. Thus the screen shows a green color.

91 .
Plasma panel is also called as_______.
A)
Liquid crystal display
B)
Non-emissive display
C)
Gas discharge display
D)
None of the above

Correct Answer :   Gas discharge display

Explanation : Plasma-Panels are also called as Gas-Discharge Display. It consists of an array of small lights.

92 .
Which of the following device is designed to minimize the background sound?
A)
Microphone
B)
Joystick
C)
Digitizers
D)
Data glove

Correct Answer :   Microphone

Explanation : The microphone is designed to minimize the background sound.

93 .
Which of the following stores the picture information as a charge distribution behind the phosphor-coated screen?
A)
Cathode ray tube
B)
3D viewing device
C)
Flat panel displays
D)
Direct-view storage tube

Correct Answer :   Direct-view storage tube

Explaination : DVST saves the picture information behind the screen rather than updating it.

94 .
In which of the following method, fixed pattern of a line is used to generate characters?
A)
Stroke method
B)
Starbust method
C)
Bitmap method
D)
Dot-matrix method

Correct Answer :   Starbust method

Explanation : A mixture of 24bit line segments is employed in the Starbust approach. It is a character generating method in which only 24 strokes are defined for character generation.

95 .
Which of the following is not a type of area sampling?
A)
Anti-aliasing
B)
Weighted area sampling
C)
Point sampling
D)
Unweighted area sampling

Correct Answer :   Point sampling

Explanation : Weighted and unweighted area sampling are two methods of area sampling that differ in terms of intensity proportionality. Unweighted area sampling is also known as anti-aliasing, but point sampling is not a sort of area sampling.

96 .
The video device with reduced volume, power consumption and weight is____.
A)
CRT
B)
Portable display
C)
Flat-panel display
D)
None of the above

Correct Answer :   Flat-panel display

Explanation : The Flat-Panel display refers to a class of video devices with reduced volume, weight and power requirement compared to CRT.

Example: Small T.V. monitor, calculator, pocket video games, laptop computers, an advertisement board in an elevator.

97 .
The process of displaying 3D into a 2D display unit is called as___.
A)
Resolution
B)
Rasterization
C)
Transformation
D)
Projection

Correct Answer :   Projection

Explanation : The process of displaying 3D into a 2D display unit is called a projection. The projection changes 3D objects into a 2D projection plane.

98 .
The phase of determining the appropriate pixels for representing images or graphics object is called as_____.
A)
Scaling
B)
Rasterization
C)
Translation
D)
Transformation

Correct Answer :   Rasterization

Explaination : The phase of determining the appropriate pixels for representing images or graphics objects is called rasterization.