Computer Graphics Solved MCQs Questions Answers

COMPUTER GRAPHICS Multiple Choice Questions:-

2. Computer graphics was first used by
a. William Fetter in 1960
b. James Fetter in 1969
c. James Gosling in 1991
d. John Taylor in 1980

3. The components of interactive computer graphics are
a. A light pen
b. Display unit
c. Bank of switches
d. All of these

4. Personal computers become powerful during the late
a. 1960
b. 1970
c. 1980
d. 1950

5. Three-dimensional computer graphics become effective In the late
a. 1960
b. 1980
c. 1970
d. 1950

6. which environment has been one of the most accepted tools for computer graphics in business and graphics design studios
a. graphics
b. Macintosh
c. quake
d. multimedia

7. Graphics is one of the_________ major key element in design of multimedia application
a. Five
b. Three
c. Four
d. Eight

8. Three-dimensional graphics become popular in game designing, multimedia, and animation during the late
a. 1960
b. 1970
c. 1980
d. 1990

9. Quake, one of the first fully 3D games, was released in the year
a. 1996

b. 1976
c. 1986
d. 1999

10. Types of computer graphics are
a. Vector and raster
b. Scalar and raster
c. Vector and Scalar
d. None of these

11. GUI stands for

a) Graphical user interaction

b) Graphical uniform interchange

c) Graphics  user interface

d) None of these

12. The primary input device in GUI is

a) keyboard

b) monitor

c) mouse

d) all of these

13. Geometric transformation include

a) transition

b)  drawing

c)  scaling

d) none of the above

14.  DVST stands for …

a) Direct Visual Storage Tube

b) Digital View Storing Table

c) Direct View Storage Tube

d) Digital View Storage Tube

15. The term ‘raster’ is used for …

a) array

b) queue

c) model

d) matrix

 16. Graphics is defined as …

a) photographs

b) simulations

c)  drawing

d) all of these

17. What is the purpose of the display card?

a) sending graphics data to the output unit

b) receiving graphics data to input unit

c) sending graphics data from the output unit

d) all of these

18. Sutherland Hodgeman algorithm is applied on …

a) line segment

b) concave polygon

c) smooth curves

d) convex polygon

19. Pixels are arranged in

a) three-dimensional grid

b) two-dimensional grid

c) one-dimensional grid

d) none of these

20. Which controller reads each successive data byte from the frame buffer?

a) data controller

b) display controller

c) digital controller

d) design controller

21. Each pixel’s brightness is …

a) transitive

b) compatible

c) incompatible

d) none of these

22. RGB models are used for

a) printing

b) texting

c) computer display

d) window display

23. For black and white images, black pixels are identified by ________ in
the frame buffer and white pixels represented by?

(A) One and Zero
(B) Zero and One
(C) Both a & b
(D) None of these

24. Select the byte for a 16*16 array of black and white pixels.
(A) 64 bytes
(B) 128 bytes
(C) 32 bytes
(D) 96 bytes

25. The display controller changes 0s and 1s into?
(A) TV monitor
(B) Electronics signal
(C) Video signal
(D) None of these

26. Select how the transmitted to the display.
(A) Point

(B) Segment
(C) None of these

27. which area of the computer that is selected by an application is known as
(A) Display
(B) Viewport

(C) Window
(D) None of these

28. The movement of various attributes of the image would make the image dynamic
and like a dynamic effect, which is also known as?
(A) Picture
(B) Painting
(C) Animation
(D) None of these

29. The subtractive color model uses the concept of
a. Printing ink
b. Light to display color
c. Printing line
d. None of these

30. Color apparent in the additive model is the result of
a. Reflected Light
b. Transmission of Light
c. Flow of Light
d. None of these

31. Color apparent in the subtractive model is the result of
a. Amount of Reflected Light

b. Transmission of Light
c. Flow of Light
d. None of these

32. Two-dimensional color models are
a. RGB and CMYK
b. RBG and CYMK
c. RGB and CMYK
d. None

33. RGB models are used for
a. Computer display
b. Printing
c. Painting
d. None of these

34. The CMYK model is used for
a. Computer display
b. Printing
c. Painting
d. None of these

35. The intersection of three primary RGB colors produces
a. White color
b. Black color
c. Magenta color
d. Blue color

36. The intersection of primary CMYK color produces
a. White color
b. Black color
c. Cyan color
d. Magenta color

37. The RGB model displays a much _______ percentage of the visible band as compared to CMYK
a. Lesser
b. Larger
c. Medium
d. None of these

38. Color depth can be defined by ________, which can be displayed on a display unit
a. Bits per pixel
b. Bytes per pixel
c. Megabyte per pixel
d. None of these

39. Each bit represents
a. One color
b. Two color
c. Three color
d. None

40. RGB accurate color model has _______ color depth
a. 24bit
b. 32bit
c. 64bit
d. None

41. CMYK accurate color model has _______ color depth
a. 24bit
b. 32bit
c. 64bit
d. None

42. Greyscale images have a maximum color depth of
a. 8bit
b. 16bit
c. 24bit
d. 32bit

43. Graphics with limited features is known as
a. Active graphics
b. Passive graphics
c. Grayscale image
d. None of these

44. Computers of the present time have much higher memory and ________ storage capacity
a. Much smaller
b. much bigger
c. Much slower
d. None

45. CRT means
a. Common ray tube
b. Cathode ray tube
c. Common ray tube
d. None

46. Refresh CRT consists of
a. Glass wrapper
b. The phosphor viewing surface
c. The electron gun assembly
d. All of the above

47. The amount of time the phosphor produces Light or shine is controlled by the chemical composition of the phosphor. This is known as
a. Persistence

b. Resistance
c. Generators
d. None

48. The electron beam in a color picture tube is refreshed_______ times in a second to make the video realistic
a. 15 times
b. 25 times
c. 35 times
d. 45 times

49. DUST means
a. Direct view storage tube
b. Domain view storage tube
c. Direct view store tube
d. None

50. DUST is rarely used today as part of
a. Input device
b. Output device
c. Display systems
d. None

51. _____________ is a technique that is used to approximate the halftones without the reduction of spatial resolution.

a. Dithering

b. Error diffusion

c. Halftoning

d. None of the above

52. Out of the following, which is NOT the basic primitive of the GKS (Graphics Kernel System)?





53. In the images, redundancy stems from:

a. pixel quantization

b. image size

c. pixel decorrelation

d. pixel correlation

54. Consider a window bounded by these lines: y = 0; x = 0; y = 3 and x = 5. If clipped against this window, the line segment joining the (-1, 0) and (4, 5) will connect the points will be:

a. (0, 1) and (3, 2)

b. (0, 1) and (4, 3)

c. (0, 1) and (3, 3)

d. (0, 1) and (2, 3)

55. Which color models are defined by the three primary colors?

a. CMY and HSV

b. RGB and HSV

c. RGB and CMY

d. HSV and HLS

56. A raster grid has XY-axes in the positive upward Y-direction and the positive X-direction with Xmin = –5, Xmax = 10, Ymin = 6, and Ymax = 11. The address of the memory pixel that has the location (5, 4) in the raster grid would be (assuming the base address 1):

a. 161

b. 160

c. 151

d. 150

57. We rotate a point P (2, 5) by 60° about a pivot point (1, 2). The new transformed point P’ would be:

a. (– 4, 1)

b. (1, – 4)

c. (-1, 4)

d. (1, 4)

58. Which of these is utilized for the boundary representation of the image objects?

a. Run length coding

b. Chain codes

c. Projections

d. QuadTree

59. Out of the following steps, which is/are not required for converting analog to digital?

(I) Sensing (II) Conversion (III) Amplification

(IV) Conditioning (V) Quantization

a. (I) and (I)

b. (III) and (IV)

c. (I), (I), and (V)

d. None of the above

60. ___________ is the refresh rate, and above it, a picture would stop flickering to fuse into a steady image:

a. Critically diffused frequency

b. Critical fusion frequency

c. Current frequency fusion

d. Crucial fusion frequency

61. If we can distinguish 40 black lines that are interleaved with the 40 white lines across one inch, then the resolution would be ___________ per inch:

a. 40 lines

b. 1600 lines

c. 80 line-pairs

d. 40 line-pairs

62. The images are a vast data collection. The memory size required for a 1024×1024 image where the color of every pixel is represented by n-bit numbers in an 8-bit machine would be _________ MB.

a. 1024

b. (1024 × 1024) / 8

c. n / 8

d. n × 8

63. The diffuse reflection coefficient determines An object’s color. Here, if Kd = (0.8, 0.4, 0), so if the Light used is magenta and blue, then the color of the object would be:

a. Black and Red

b. Black and White

c. Red and Blue

d. White and Red

64. Which of these is a clustering technique permitting a convenient graphical display?

a. Agglomerative clustering

b. Hierarchical clustering

c. Probabilistic model-based clustering

d. Partition-based clustering

65. Which technique is used to produce color displays with random CRT scan monitors?

a. Gas-Discharge

b. Direct View Storage

c. Shadow Mask

d. Beam Penetration

66. The raster scan display systems that have 24 bits/pixel and a 1024×1024 screen resolution require a frame buffer size of:

a. 24 MegaBytes

b. 8 MegaBytes

c. 3 MegaBytes

d. 1 MegaByte

67. Consider a graphic display system with 480 pixels high, 640 pixels wide, and 1 bit of color depth frame buffer. In case the access time for every pixel is 200 nanoseconds on average, then the approximate refresh rate of such a frame buffer would be __________ frames per second.

a. 23

b. 21

c. 19

d. 16

68. Which of these is NOT a component of the Memory tube display?

a. Liquid Crystal

b. Ground

c. Collector

d. Flooding gun

69. In the case of Oblique Projections, which is NOT true?

a. The plane of projection is always perpendicular to the projectors.

b. These are exclusively used for pictorial purposes instead of formal working drawings.

c. All the parallel lines in the space appear similar to the projected final image.

d. The Parallel projection rays aren’t perpendicular to a viewing plane