3. Region filling is the process of ___________a definite area of region.
Correct : A. Coloring in
4. Boundary fill and flood fill algorithm begins with a
Correct : D. Seed
5. To determine the points inside the polygon this test is used
Correct : A. Inside test
6. To modify the graphics in coded numbers ______________ is used.
Correct : C. Transformation
7. To increase or reduce the size ______________ is used.
Correct : C. Scaling
8. To rotate the object which transformation is used.
Correct : B. Rotation
9. To move the image or object from one position to another.
Correct : C. Translation
10. When two or more transformation are carried out together then it is called.
Correct : B. Composite transformation
11. Which of the following is measured in screen coordinates.
Correct : B. Image model
12. If the line is entirely within the window then both points will have out-codes.
Correct : B. 0000
13. Cohen-Sutherland algorithm used for
Correct : C. Line clipping
14. Sutherland-Hodgeman algorithm used for
Correct : A. Polygon clipping
15. Interactive computer graphics uses various kind of input devices such as
Correct : D. All of these
16. Input function are used for
Correct : C. Both a & b
17. If the line connecting two interior points of the polygon lies completely inside the polygon, is said to be ____________.
Correct : A. Convex
18. In Bresenham's line generation algorithm, the initial value of the decision parameter as p0 = __________, where slope MOD (m) < 1.
Correct : A. 2Δy – Δx
19. If a line whose end point is (10, 12) and start point is (20, 20), then slope m =?
Correct : B. 0.8
20. Which is not an interactive device?
Correct : C. CRT Monitor
21. The Cartesian slope-intercept equation for a straight line is ________________.
Correct : B. y = m.x + b
22. A polygon having vertices P1, P2 ,… Pn is said to be ____________ oriented if a tour
of the vertices in the given order produces an anticlockwise loop.
Correct : A. Positive
23. Most of our drawing algorithm use-
Correct : A. Incremental Method
24. In our computer we follow
Correct : A. Left handed coordinate system
25. The process of burning ON of the pixel of line segment is:
Correct : A. Rasterization
26. The process of distortion of information due to low frequency sampling or under sampling is
Correct : B. Anti-aliasing
27. The distance between the actual line location and nearest pixel is called
Correct : B. Error Team
28. The process of combining pixels of available colors is called-
Correct : A. Dithering
29. An array of weights of subpixels are called as-
Correct : C. pixel-weighted mask
30. In CRT, the electron intensity is adjusted using .................
Correct : B. Control grid
31. Lower persistence phosphorus is used in
Correct : A. Animation
32. The shortest distance between any two dots of the same color is called ...................
Correct : B. Dot Pitch
33. Identify the odd one out from the following
Correct : B. Pixmap
34. The purpose of refreshing a CRT is ..........................
Correct : D. All of the above
35. The transformation in which an object is moved in a minimum distance path from one position
to another is called
Correct : C. Translation
36. The translation distances (dx, dy) is called as
Correct : C. Both a and b
37. The transformation in which an object is moved from one position to another in circular path
around a specified pivot point is called
Correct : A. Rotation
38. A circle, if scaled only in one direction becomes a ?
Correct : B. Ellipse
39. (2,4) is a point on a circle that has center at the origin. Which of the following points are also on circle ?
Correct : D. All of above
40. The shortest distance between any two dots of the same color is called ...................
Correct : D. ppi
41. DVST stands for ..........................
Correct : C. Direct View Storage Tube
42. The transformation in which the size of an object can be modified in x-direction ,ydirection and z-direction
Correct : B. Scaling
43. What are the components of Interactive computer graphics
Correct : D. All of these
44. The center of display screen is computed as
Correct : B. Xmax/2,ymax/2
45. The image can be transmitted to the display point by________
Correct : C. Point
46. The transformation in which an object is moved from one position to another in circular
path around a specified pivot point is called
Correct : C. Rotation
47. The selection and separation of a part of text or image for further operation are called
Correct : D. Clipping
48. The graphics method in which one object is transformed into another object are called
Correct : B. Morphing
49. A many sided figure is termed as
Correct : B. Polygon
50. We need to represent curves & surfaces when
Correct : C. Both a & b
51. The representations for surface modeling include.
Correct : D. All of the above
52. Quadric surfaces are defined by equation
Correct : A. f(x,y,z) = 0
53. In explicit representation each polygon is represented by list of
Correct : A. Vertex coordinates
54. In pointers to vertex list
Correct : A. Each vertex is stored once
55. In case of explict functions the functions are equal to
Correct : D. Both a & b
56. The value of x,y,z in case of parametric representation of curves is
Correct : D. All of the above
57. The parameter t ranges from
Correct : B. 0 to 1
58. If two curve segments join together the curve has
Correct : B. G 0 continuity
59. If tangent vectors of two cubic curve segments are equal the curve has
Correct : A. C 1 continuity
60. A joystick is a
Correct : A. Graphics input device
61. A Bezier curve is a polynomial of degree ___________the no of control points used
Correct : B. One less than
62. A three dimensional object can also be represented using_______
Correct : B. Equation
63. A three dimensional graphics has
Correct : B. Three axes
64. An_______ can be considered as an extension of spherical surface
Correct : B. Ellipsoid
65. Sp line curve can be either
Correct : C. Both a & b
66. Bezier sp line always passes through
Correct : C. Both a & b
67. The Bezier curve obtained from the four control points is called a
Correct : B. Cubic Bezier curve
68. The shape of a Bezier curve primarily depends upon the
Correct : A. Position of control points
69. The no of control points in a Bezier curve ensures the
Correct : B. Smoothness of curve
70. More the control points of a Bezier curve,________ quality of the curve
Correct : A. Higher
71. ______is one of the function that is used to specify a single plane surface
Correct : B. Fill area
72. Meta-ball is used to describe
Correct : C. Composite object
73. Super quadrics is a class of object that contain
Correct : C. Both a & b
74. When two molecules move apart, which effect on molecular shapes
Correct : D. All of these
75. An object's _______ determine its orientation relative to the light sources. For each vertex, OpenGL uses the assigned normal to determine how much light that particular vertex receives from each light source.
Correct : B. Normal
76. Bezier curve is tangent to the lines connecting _____________.
Correct : C. Fist two points and last two point
77. A parametric curve is one whose defining equations are given in terms of a -------------, common, independent variable called the parametric variable.
Correct : C. Single
78. To ensure a smooth transition from one section of a piecewise __________ to the next,
we can impose various continuity conditions at the connection points
Correct : D. None of these
79. How many data elements for each region in quad-tree data structure
Correct : C. 8
80. How many data elements for each region in octree data structure
Correct : D. 8
81. ............... refer to the shapes created by union, intersection and difference of given
shapes
Correct : C. Constructive solid geometry methods
82. The operation that is used for repositioning the object is called
Correct : C. Dragging
83. Which method are used to construct and position the straight lines, arcs and circles etc.
Correct : C. Dragging
84. Identify the methods for Constructive Solid Geometry operations
Correct : A. Ray casting
85. ........................... solid representation takes advantage of spatial coherence to reduce the storage representations.
Correct : B. Octree
86. ................... is a data element to store the pixels within an octant having same color
Correct : A. Voxel
87. Empty regions of the space are represented by type....................
Correct : B. void
88. In a clipping algorithm of Cohen & Sutherland using region codes, a line is already clipped if the ?
Correct : D. A and B
89. The subcategories of orthographic projection are ?
Correct : C. isometric, dimetric, trimetric
90. Which are used to achieve the predetermined orientations and alignments of the objects
Correct : A. Constraints
91. Which of the following curve is an Sp-line approximation method
Correct : A. Bezier
92. We translate a two-dimensional point by adding
Correct : D. Only a
93. B-splines can be used for which of the following
Correct : A. Curve-fitting and numerical differentiation of experimental data.
94. A B-spline of order n is a piecewise polynomial function of degree ________ in a variable x
Correct : A. (a)less than n
95. if a knot vector of m + 1 knots and n + 1 control points are given, the degree of the Bspline curve is p=
Correct : B. m-n-1
96. Second order parametric continuity(C2 continuity) means that both ____and____ parametric derivatives of the two curves are same at the intersection
Correct : B. first and second
97. How many basic method of projection
Correct : B. Two
98. Lines of projection coverage at a single point called
Correct : B. Centre of projection
99. Select the perspective anomalies from the following:
Correct : A. Perspective foreshortening
100. Difference between parallel and perspective projection lies in the