About Computer Graphics

Following are some of the multiple choice questions on the Computer Graphics with answers that will help the students in developing their knowledge.

Computer Graphics MCQ

1. The disadvantage of line DDA is

  • Time consuming
  • Faster
  • Neither a nor b
  • None of the mentioned

2. If the boundary is specified in a single color, and if the algorithm proceeds pixel by pixel until the boundary color is encountered is called

  • Scan Line Algorithm
  • Flood Fill Algorithm
  • Boundary Fill Algorithm
  • None of the above

3. Two successive translations are___________________

  • Subtractive
  • Additive
  • Inverse
  • Multiplicative

4. The Cartesian slope-intercept equation for a straight line is

  • y = m.x + b
  • y = b.x + m
  • y = x.x + m
  • y = b + m.m

5. On raster system, lines are plotted with

  • Lines
  • Dots
  • Pixels
  • None of the mentioned

6. Positive values for the rotation angle ϴ defines

  • Counterclockwise rotations about the end points
  • Counterclockwise translation about the pivot point
  • Counterclockwise rotations about the pivot point
  • Negative direction

7. Which transformation distorts the shape of an object such that the transformed shape appears as if the object were composed of internal layers that had been caused to slide over each other?

  • Scaling down
  • Shearing
  • Scaling up
  • Rotation

8. In a reflection, by how much angle is the object rotated?

  • 45 degree
  • 180 degree
  • 90 degree
  • 360 degree

9. The seed fill algorithm for filling polygon is classified as ________ fill algorithm and _______ fill algorithm.

  • Even,Odd
  • Boundary, Scan
  • Flood, Boundary
  • Edge, Flood

10. Initial decision parameter P0 in Mid Point Circle drawing algorithm is

  • P0=1-R
  • P0=1-R2
  • P0=1 + R
  • P0= 1+R2

11. To apply the midpoint method, we define

  • circle(x, y)= x2+ y2- r2
  • circle(x, y)= x+ y2- r2
  • circle(x, y)= x2– y2- r2
  • circle(x, y)= x2+ y2- z2

12. Cohen-Sutherland clipping is an example of _________________

  • polygon clipping
  • text clipping
  • line clipping
  • curve clipping

13. Which of the following represents shearing?

  • (x, y) → (x cos(θ)+y sin(θ), -x sin(θ)+y cos(θ))
  • (x, y) → (ax, by)
  • (x, y) → (x+ay, y+bx)
  • (x, y) → (x+a, y+b)

14. A bitmap is collection of ___________________ that describes an image.

  • bits
  • colors
  • algorithms
  • pixels

15. An area on a physical device to which a window is mapped is called a

  • Window
  • clip
  • Viewport
  • Segment

16. For a point to be clipped, which of the following conditions must be satisfied by the point?

  • ywmin = y = ywmax
  • xwmin > x > xwmax
  • xwmin = x = xwmax
  • xwmin < x < xwmax

17. In line clipping, the portion of line which is _____________ of window is cut and the portion that is _____________ the window is kept.

  • outside, inside
  • inside, outside
  • exact copy, different
  • different, an exact copy

18. An accurate and efficient raster line-generating algorithm is

  • DDA algorithm
  • Mid-point algorithm
  • Parallel line algorithm
  • Bresenham’s line algorithm

19. __________ is a method for testing a pixel inside of a polygon.

  • even-odd method
  • Winding Number Method
  • Both A & B
  • None of these

20. The centre region of the screen and the window can be represented as________

  • 0000
  • 1111
  • 0110
  • 1001

21. Which algorithm is a faster method for calculating pixel positions?

  • Bresenham’s line algorithm
  • Parallel line algorithm
  • Mid-point algorithm
  • DDA line algorithm

22. The Cohen-Sutherland algorithm divides the region into _____ number of spaces.

  • 8
  • 6
  • 7
  • 9

23. Which is a good logo?

24. What does PDF stand for?

  • Portable device format
  • Portable document format
  • Picture document format
  • Preferred document format

25. Which one of these is not a common RASTER file?

  • bitmap
  • png
  • jpg
  • pdf

26. What is a digital graphic?

  • A visual representation of an object
  • a photograph
  • An edited photograph
  • An image made by a computer

27. Which file type allows for compression and transparency?

  • PNG
  • JPG
  • BMP
  • PDF

28. The point that remains fixed during a rotational transformation is ____________.

  • Lower left corner of an object
  • Origin of the Co-ordinate system
  • All points of the object
  • None of the above

29. Do Cameras store Pictures in RAW format?

  • Yes
  • No

30. What does PNG stand for?

  • Pictures aNd Graphics.
  • Portable Network Graphics
  • Portable New Graphics
  • Pictures Not Graphics

31. What is the font that Word opens with?

  • Arial
  • Times New Roman
  • Calibri
  • Any font you pick.

32. Which Graphic File type permits animation?

  • JPEG
  • GIF
  • TIFF
  • PNG

33. Which HEX color code is closer to black?

  • #F5FA11
  • #5F2871
  • #DA0901
  • #191919

34. What is the best size resolution for printing?

  • 72 PPI
  • 100 PPI
  • 1500 PPI
  • 300 PPI

35. What does PPI stand for?

  • Process Post Inspect.
  • Print Per Inch.
  • Pixels Per Inch.
  • Pixels Print Image.

36. What Graphic File type allows transparency?

  • JPEG
  • TIFF
  • BMP
  • PNG

37. How many Fonts in a Font File?

  • 2
  • many
  • 1
  • 3

38. Which are Windows Font File types?

  • TTF, OFT
  • OTF, TTF
  • TTL, OLF
  • OLP, TTP

39. What is the RGB code for White?

  • (255, 255, 255)
  • (256, 256, 256)
  • (200, 200, 200)
  • (0, 0, 0)

40. What is the oldest Graphic File type?

  • JPEG
  • PNG
  • BPM
  • TIFF

41. What is the HEX color code for Black?

  • #111111
  • #000000
  • #999999
  • #101010

42. What does JPG stand for?

  • Joint Photography Experts Group.
  • Joint Pictures Excellent Grade.
  • Join Pictures Enter Graphics.
  • Joined Photographs Excel Graphs

43. What are the four colors in CMYK?

  • Cyan, Red, Black and Green.
  • Magenta, Purple, Cyan, Orange.
  • Orange, Yellow, Cyan, Red.
  • Cyan, Magenta, Yellow, Black.

44. Is TIFF a graphic file type or a font for the Toronto International Film Festival?

  • Graphic File type.
  • Toronto International Film Festival

45. What is the best characteristic of a JPEG image?

  • It can be resized.
  • It is a very large file.
  • It is very clear definition.
  • It takes up less disk space.

46. How do you show the size of a Graphic image?

  • in Icons
  • in PPI
  • in Pixels
  • in TIFF

47. Cubic bezier curve is example of

  • Approximating Curve
  • Interpolating Curve
  • Smooth Curve
  • Exponential Curve

48. Following is the Interpolating Curve

  • Bezier Curve
  • Hermite Curve
  • Exponential Curve
  • Direct Curve

49. What is the Clipping point of a line AB where A(40,40) and B is (60,25) against a window defined by (wxmin,wymin) as (10,10) and (wxmax,wymax) as (50,50)

  • (50,50)
  • (50,32.50)
  • (36.67, 32.50)
  • (36.67,36.67)

50. Number of control points in parametric cubic curve is

  • 6
  • 9
  • 12
  • 4

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