Computer Graphics MCQ 06

1. ______is a flexible strip that is used to produce smooth curve using a set of point
1. Sp line
2. Scan-line method
3. Depth-sorting method
4. None of these
2. The types of sp line curve are
1. Open sp line
2. Closed sp line
3. Both a & b
4. None of these
3. Cubic sp line are
1. Simple to compute
2. Provides continuity of curves
3. Both a & b
4. None of these
4. The parametric form of 3D sp line are
1. X=f(t),y=g(t),z=h(t)
2. X=a₀,y=b₀,z=c₀
3. F(t)=0,g(t)=0,h(t)=0
4. None of these
5. The value of t lies between
1. 1 and 2
2. 1 and 10
3. 0 and 1
4. 0and 3
6. The surfaces that is blocked or hidden from view in a 3D scene are known as
1. Hidden surface
2. Frame buffer
3. Quad tree
4. None of these

7.       The problem of hidden surface are

1. Removal of hidden surface
2. Identification of hidden surface
3. Both a & b
4. None of these
7. Why we need removal of hidden surface
1. for displaying realistic view
2. for determining the closest visible surface
3. Both a & b
4. None of these
8. How many types of hidden surface algorithm are
1. 1
2. 2
3. 3
4. 4
9. The algorithm of hidden surface are
1. Object-space method
2. image-space method
3. Both a & b
4. None of these
10. The method which is based on the principle of comparing objects and parts of objects to each other to find which are visible and which are hidden are called
1. Object-space method
2. image-space method
3. Both a & b
4. None of these
11. The method which is based on the principle of checking the visibility point at each pixel position on the projection plane are called
1. Object-space method
2. image-space method
3. Both a & b
4. None of these
12. The types of hidden surface removal algorithm are
1. Depth comparison, Z-buffer, back-face removal
2. Scan line algorithm, priority algorithm
3. BSP method, area subdivision method
4. All of these
13. Which surface algorithm is based on perspective depth
1. Depth comparison
2. Z-buffer or depth-buffer algorithm
3. subdivision method
4. back-face removal
14. In which year Z- buffer algorithm are described
1. 1995
2. 1974
3. 1945
4. 1981
15. Z -buffer algorithm are
1. Simplest algorithm
2. Complex algorithm
3. Largest algorithm
4. None of these
16. Which is a tree type of data structure in which every internal node has at most four children
1. Point quad tree
2. Edge quad tree
3. Quad tree
4. None of these
17. The scan line coherence algorithm was developed by
1. Wylie
2. Evans
3. Cat mull
4. Both a & b
18. The array are used with scan line coherence algorithm are
1. For intensity value
2. For depth value
3. Both a & b
4. None of these
19. Scan lines are used to scan from
1. Top to bottom
2. Bottom to top
3. Both a & b
4. None of these
20. The painter algorithm were developed on
1. 1972 by Newell
2. 1972 by Evans
3. 1974 by Cat mull
4. None of these
21. The painter algorithm are also called
1. Depth sort algorithm
2. Priority algorithm
3. Both a & b
4. None of these
22.  The painter algorithm are based on the property of
1. Polygon
2. Frame buffer
3. Depth buffer
4. None of these
23. The dynamic effect of an image is called
1. Video
2. Animation
3. Super sampling
4. None of these
24. The animation can be defined as a collection of images played in
1. Not sequence
2. Defined sequence
3. Both a & b
4. None of these
25. When sound is included in the animation, it become
1. Audio
2. Video
3. Both a & b
4. None of these
26.  Many online animation tools are used to create animation in the form of
1. JPEG image
2. PDF image
3. GIF image
4. None of these
27. An ex of online animation tools are
1. Macromedia flash
2. GIF works
3. Both a & b
4. None of these
28. To produce the motion in the image by placing the elements of the image on different location ,which software are used
1. Macromedia flash
2. GIF works
3. Both a & b
4. None of these
29. The name of a visible surface detection algorithm are
1. Back face detection
2. Back face removal
3. Ray tracing
4. None of these
30. Which type of quad tree can be defined as an adaptation of a binary tree represented two dimensional point data
1. Point quad tree
2. Edge quad tree
3. Curves quad tree
4. Areas quad tree
31. Which type of quad tree is specifically used to store lines rather than points
1. Point quad tree
2. Edge quad tree
3. Curves quad tree
4. Areas quad tree
32. Which quad tree defines a partition of space in two dimension by dividing the region into four equal quadrants, sub quadrants and so on
1. Curves quad tree
2. Areas quad tree
3. Region quad tree
4. None  
33. The animation graphics can be created by
1. Hand
2. Computer assistance
3. Both a & b
4. None of these
34. The animation can be divided into
1. One part
2. Two parts
3. Three parts
4. Four parts
35. The types of animation are
1. Traditional animation
2. Computer animation
3. Both a & b
4. None of these
36. The types of computer animation are
1. 2D computer animation
2. 3D computer animation
3. Both a & b
4. None of these
37. The depth sorting method reforms surfaces sorting in________ order of depth
1. Increasing
2. Decreasing
3. Both a & b
4. None of these
38. The problem of discontinuity of lines is known as
1. Jaggies
2. Stair-casing
3. Both a & b
4. None of these
39. A quad-tree is a data structure which is used for graphical representation of
1. 2D digital picture or object
2. 3D picture or object
3. Both a & b
4. None of these
40. A octree is a data structure which is used for alternative representation of
1. 2D digital picture or object
2. 3D picture or object
3. Both a & b
4. None of these
41. How many data elements for each region in quad-tree data structure
1. 2
2. 4
3. 6
4. 8
42. How many data elements for each region in octree data structure
1. 2
2. 4
3. 6
4. 8
43. The main property of________ is that their shape is irregular
1. Fractals
2. Quad-tree
3. Rendering
4. None of these
44. The word fractals is coined by
1. Mandelbrot in 1975
2. Gosling in 1962
3. Mandelbrot in 1974
4. Mandelbrot in 1979
45. The fractals is used to
1. Generate image of natural object
2. Viewing of various mathematical system
3.  Viewing of various physical system
4. All of these
46. A process with the help of which images or picture can be produced in a more realistic way is called
1. Fractals
2. Quad-tree
3. Rendering
4. None of these
47. For which purpose ,one needs to apply natural light effects to visible surface
1. Fractals
2. Quad-tree
3. Rendering
4. None of these
48. The basic ray tracing algorithm provides
1. Transparency
2. Visible-surface detection
3. Shadow effect, multiple light source illumination
4. All of these
49. Ray-tracing is an extension of
1. Ray calling
2. Ray casting
3. Ray sampling
4. None of these
50. A fast and simple method for rendering an object with polygon surface is
1. Constant-intensity shading
2. Flat shading
3. Both a & b
4. None of these