Computer Science  Computer Graphics
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Question 1 of 75
1. Question
The point (4, 1) undergoes the following 3 transformations successively.
I) Reflection about the line y = x
II) Translation through a distance of 2 units along the positive xaxis
III) Rotation through an angle of ∏/4 about the origin in the counter clockwise direction.
The final position of the point will beCorrect
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Question 2 of 75
2. Question
Let the maximum number of pixels in a line be M. The number of subdivisions as most necessary using the midpoint subdivision method of clipping is
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Question 3 of 75
3. Question
Find the incorrect statement(s).
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Question 4 of 75
4. Question
The people of the planet Mars designed a scale for measuring the temperature in which water freezes at 100 units and boils at 250 units. The people of jupiter designed a scale in which water freezes at 75 units and boils at 300 units. A temperature of 200 units in Mars will measure ___ in jupiter.
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Question 5 of 75
5. Question
The two scales coincide at
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Question 6 of 75
6. Question
Oblique projection with an angle of 45° to the horizontal plane is called as
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Question 7 of 75
7. Question
Which of the following curves are symmetric about the line x = y?
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Question 8 of 75
8. Question
Choose the correct statement(s).
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Question 9 of 75
9. Question
The perspective anomaly in which the object behind the centre of projection is projected upside down and backward onto the view plane is called as
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Question 10 of 75
10. Question
Which statement about bean penetration method for producing colour displays is/are true?
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Question 11 of 75
11. Question
x = at^{2}; y = 2at, is the parametric equation of
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Question 12 of 75
12. Question
A line connecting the points (1, 1) and (5, 3) is to be drawn, using the DDA algorithm. Find the value of x and y increments.
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Question 13 of 75
13. Question
The entire graph of the function f(x) = x^{2} + kx – x + 9 is strictly above the xaxis if and only if
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Question 14 of 75
14. Question
The phenomenon of having a continuous glow of a beam on the screen even after it is removed is called as
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Question 15 of 75
15. Question
Perform window to viewport information for the point (20, 15). Assume that (Xwmin, Ywmin) is (0, 0); (Xwmax, Ywmax) is (100,100); (Xvmin, Yvmin) is (5, 5); (Xvmax, Yvmax) is (20, 20). The value of x and y in view port is
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Question 16 of 75
16. Question
A frame buffer array is addressed in rowmajor order for a monitor with coordinate locations varying from (0, 0) to (100, 100) Assuming that one bit of storage is required per pixel and address of (0,0) is 0000, the address of the coordinate position (5, 10) is given by
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Question 17 of 75
17. Question
Which display device is best suited for CAD systems?
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Question 18 of 75
18. Question
Whenh the computer is not able to maintain operation and display, bright spots occur in the screen. This is called as
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Question 19 of 75
19. Question
All the following hidden surface algorithms employ image space approach except
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Question 20 of 75
20. Question
The best hidden surface removal method(s) used for complex scenes with more than a few thousand surfaces is/are
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Question 21 of 75
21. Question
The antialiasing technique which allows shift of 1/4, 1/2 and 3/4 of a pixel diameter enabling a closer path of a line is
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Question 22 of 75
22. Question
The subcategories of orthographic projection are
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Question 23 of 75
23. Question
The clarity of a displayed image depends on the
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Question 24 of 75
24. Question
Which of the following is an odd function?
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Question 25 of 75
25. Question
In multiple transformation, which of the following are commutative?
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Question 26 of 75
26. Question
In the rasterscan method for transformation, a 90° rotation can be performed by
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Question 27 of 75
27. Question
In the clipping algorithm of Cohen & Sutherland using region codes, a line is already clipped if the,
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Question 28 of 75
28. Question
Choose the function that are periodic.
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Question 29 of 75
29. Question
In SutherlandHodgman algorithm for polygon clipping, assume p (present point) lies inside the window and S (Previous point) lies outside the window. Then, while processing through that window boundary, we should
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Question 30 of 75
30. Question
Randomscan monitors are also referred to as
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Question 31 of 75
31. Question
The refresh rate below which a picture flickers is
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Question 32 of 75
32. Question
Pixel phasing is a technique for
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Question 33 of 75
33. Question
When several types of output devices are available in a graphic installation, it is convenient to use
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Question 34 of 75
34. Question
Which of the following points lies on the same side as the origin, with reference to the line 3x + 7y = 2?
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Question 35 of 75
35. Question
If (a, b, c) x (1, 3, 1) = (2, 1, 6), where x denotes the vector product, then (a, b, c) is given by
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Question 36 of 75
36. Question
Which of the following transformations are noncommutative?
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Question 37 of 75
37. Question
Reflection of a point about xaxis, followed by a counterclockwise rotation of 90°, is equivalent to reflection about the line
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Question 38 of 75
38. Question
Which one of the following is not a linear transformation?
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Question 39 of 75
39. Question
Raster systems display a picture from a definition in a
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Question 40 of 75
40. Question
Back face removal is an example of
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Question 41 of 75
41. Question
A bilinear transformation can be simulated by the transformations.
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Question 42 of 75
42. Question
Choose the correct answers.
To construct the rectangle ABCD, it is enough ifCorrect
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Question 43 of 75
43. Question
A raster colour display processor supports a resolution of 1024 x 800 with upto 16 milions colour simultaneously displayable. What will be the approximate size (in bytes) of the frame buffer used in the display processor?
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Question 44 of 75
44. Question
A Bezier cubic curve with control point P_{0}, P_{1},P_{2},p_{3} is defined by the equation
f (u) = _{i=3}∑^{3} P_{i}B_{i}^{3} (u)
B^{3}_{2} is^{ }
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Question 45 of 75
45. Question
Choose the incorrect statement from the following about the basic ray tracing technique used in image synthesis.
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Question 46 of 75
46. Question
A cube with side 3 units is placed so that one of its vertices is at the origin and it has one edge along the positive X, Y and Z axes of a 3D right handed coordinate system. What is the homogeneous coordinate transformation matrix, necessary to move the cube so that it has a vertex at the origin and has one edge each along the negative X, negative Y and negative Z axists.
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Question 47 of 75
47. Question
Which of the following statement(s) is/are true?
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Question 48 of 75
48. Question
Which of the following devices has a relative origin?
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Question 49 of 75
49. Question
A cube of side I unit is placed such that the Origin coincides with one of its vertices and the three axes run along three of its edges. The vertex diagonally opposite to (1, 0, 1) is
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Question 50 of 75
50. Question
A surface appearing black
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Question 51 of 75
51. Question
Hue of a colour is related to its
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Question 52 of 75
52. Question
On a 15 x 15 raster, this figure of white squares is stored such that the first square coincides with the top left corner of the raster . The compression ratio attained by run length coding is approximately
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Question 53 of 75
53. Question
If the eccentricity of a conic is less than one then it is a
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Question 54 of 75
54. Question
Parabola can be got from a right circular cone, by cutting it through a plane that is
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Question 55 of 75
55. Question
Fractals deal with curves that are
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Question 56 of 75
56. Question
A circle, if scaled is only one dimension becomes a/an
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Question 57 of 75
57. Question
Let R be the radius of a circle.The angle subtended by an are of length R at the centre of the circle is
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Question 58 of 75
58. Question
Choose the correct statement.
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Question 59 of 75
59. Question
(2.4) is a point on a circle that has centre at the origin. Which of the following point(s) is/are also on the circle?
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Question 60 of 75
60. Question
Aspect ratio is generally defined as the ratio of the
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Question 61 of 75
61. Question
Let F : R^{2} → R^{2} be the mapping defined by F(x,y) = (x/3, y/4) The image under F of the ellipse
x^{2}/9 + y^{2}/16 = 1, is
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Question 62 of 75
62. Question
The line segment joining (1, 0) and (4, 5), if clipped against this window will connect the points
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Question 63 of 75
63. Question
The line segment joining (1, 1) and (4, 2) if clipped against this window will connect the points
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Question 64 of 75
64. Question
The line 2x – y + 4 = 0 if clipped against this window will connect the points
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Question 65 of 75
65. Question
The best hidden surface removal algorithm is
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Question 66 of 75
66. Question
Engineering drawing commonly applies
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Question 67 of 75
67. Question
The basic elements of a picture in volume graphics is
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Question 68 of 75
68. Question
The point at which a set or projected parallel lines appear to converge is called as a
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Question 69 of 75
69. Question
The workstation transformation that maps the normalised device screen onto a physical device, whose xextent is 0 to 10 and yextent is 0 to 20 where the origin is the lower left corner is
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Question 70 of 75
70. Question
In the previous question, if the origin is the upper left corner, the workstation transformation matrix is
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Question 71 of 75
71. Question
Consider the three points, A(3, 6, 4); B(2, 5, 5); C(0, 3 , 7) and the view point V(1, 4, 6)
Choose the correct option(s)Correct
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Question 72 of 75
72. Question
In displaying a clipped picture, the efficient method is
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Question 73 of 75
73. Question
A viewgraph is
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Question 74 of 75
74. Question
The best suited hidden surface algorithm to deal with non polygonal, non planar surface patches is
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Question 75 of 75
75. Question
Assuming that one allows 256 depth value levels to be used, how much memory would a 512 x 512 pixel display require to store the ZBuffer?
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