1. Spots of __________ are produced on the screen by the transfer of the CT beam energy to the
phosphor.
Correct : C. light
2. Proper deflection amounts are attained by adjusting the ____________ through the coils.
Correct : A. current.
3. The most common types of graphics monitor employing a CRT is the _______ scan.
Correct : A. raster.
4. The term ___________ refers to the total screen area.
Correct : C. frame
5. The number of bits per pixel in the frame buffer is called ________buffer area.
Correct : B. depth of the buffer area.
6. At the end of scan line, the electron beam returns to the ______ side of the screen.
Correct : D. left
7. Refresh rates are described in units of _______.
Correct : C. hertz
8. After refreshing each scan line is called the __________.
Correct : B. horizontal retrace.
9. Example of a random-scan display is________.
Correct : A. pen plotter.
10. Refresh _____________ depends on the number of times to be displayed
Correct : A. rate.
11. Refresh display file is called the __________.
Correct : A. display unit.
12. ____________ ball is a two dimensional positioning device.
Correct : B. Track
13. The LEDs in touch panel operate at IR frequencies, so that the light is ___________ to a user.
Correct : B. not visible
14. A light pen activated with a _______.
Correct : D. button switch.
15. _________ scanner with a resolution of 600 dots per inch.
Correct : B. Flatbed
16. Input devices used in particular applications are ___________.
Correct : D. data gloves
17. A/An _______________ Device is any device that provides information, which is sent to the CPU.
Correct : A. Input.
18. _________ tablets use sound waves to detect a stylus position
Correct : A. Acoustic or Sonic.
19. Buttons and switches are often used to input ____________.
Correct : C. predefined Functions
20. Isometric joystick have _____________ stick.
Correct : C. non-movable.
21. To be able to select positions in any screen area with a light pen, we must have some__________ intensity assigned to each screen pixel.
Correct : C. non-zero
22. ____________________representations are useful for constructing 3D objects that possess translational, rotations or other symmetries.
Correct : C. Sweep
23. __________ are common devices for entering scalar values.
Correct : A. Dials.
24. What is the latest write-once optical storage media?
Correct : D. CD-ROM disk.
25. __________ are used to measure to dial rotations.
Correct : C. Potentiometer
26. Digital devices are_______.
Correct : A. digital clock.
27. An output device that uses words or messages recorded on a magnetic medium to produce audio response is____________.
Correct : B. voice response unit.
28. ___________ procedure accepts the coordinates of an inter point.
Correct : C. Boundary fill.
29. ____________ is applied to regions by displaying sets of parallel lines.
Correct : B. Hatch fill
30. Changes in orientation, size and shape are accomplished with ________.
Correct : A. geometric transformation.
31. _____________ is applied to an object by repositioning it along a straight line path from one
coordinate location to another.
Correct : C. Translation
32. The translation distance pair (tx, ty) is called__________.
Correct : B. shift vector.
33. The applications of the ___________ mouse include virtual reality, CAD, animation.
Correct : D. Z
34. Space ball is used for___________ dimensional positioning.
Correct : B. 3
35. Offline device is a/an _________________.
Correct : A. device which is not connected to CPU.
36. The Z mouse features three button, ___________underneath.
Correct : A. mouse ball.
37. The Z mouse features __________________buttons.
Correct : B. 3
38. The Z mouse features three button, mouse ball underneath, _________on the side.
Correct : A. thumbwheel.
39. Joystick consist of ________
Correct : A. stick.
40. ____________ transformation alters the size of an object.
Correct : B. Scaling
41. Uniform scaling is produced that maintains relative object ___________.
Correct : D. proportions
42. The location of the scaled object can be controlled by choosing a position called_________.
Correct : D. fixed point
43. Unequal values of sx and sy results in ___________ scaling.
Correct : B. differential
44. Uniform scaling of a circle is simple done by adjusting the _________.
Correct : B. radius
45. ___________________ is obtained by calculating the matrix product of individual transformations.
Correct : C. Composite transformation matrix.
46. The world coordinates area selected for display is called __________.
Correct : A. window.
47. An area on the display device to which a window is mapped is called ______.
Correct : A. viewport.
48. The mapping of a part of a world coordinate scene to a device coordinate is referred to as _____________ transformation.
Correct : A. viewing.
49. The area of a picture that is selected for viewing is called ___________.
Correct : A. window.
50. Translation is a ___________ body transformation that moves objects without deformation.
Correct : A. Rigid.
51. _______________ is a rigid body transformation that moves objects without deformation.
Correct : C. Translation
52. A two dimensional___________ is applied to an object by repositioning it along a circular path in the
xy plane.
Correct : A. rotation.
53. Successive scaling operations are __________.
Correct : C. multiplicative
54. A rigid body change in coordinate positions is referred to as __________ transformation.
Correct : B. rigid motion.
55. _____________ often involve inverse matrix calculations.
Correct : C. Composite transformation.
56. ____________ is a transformation that produces a mirror image of an object.
Correct : D. Reflection
57. When objects are to be displayed with color or shaded surfaces we apply_______.
Correct : B. surface rendering
58. ____________ include the intensity and positions of light sources and general background illumination
required for a scene.
Correct : D. Lighting specifications
59. In surface rendering procedures can then be applied to generate at the correct illumination and
________ of the scene.
Correct : D. shadow regions.
60. Objects displayed with __________________, so that the intensity of lines decreases from the front to
the back of the object.
Correct : A. depth cueing.
61. ___________ removes the part of the visible surfaces to show internal structure.
Correct : B. Cutaway view.
62. Three dimensional views can be obtained by __________ a raster scan image from a vibrating flexible
mirror.
Correct : A. reflecting.
63. Stereoscopic devices present ______ views of the scene.
Correct : B. 2
64. The mirror image for a two dimensional reflection is generated relative to an ______________ by rotation the object 180 degrees about the reflection axis.
Correct : C. axis of reflection.
65. The mirror image for a two dimensional reflection is generated relative to an axis of reflection by rotation the object ______________ degrees about the reflection axis.
Correct : B. 180
66. __________transformations can be used to modify object shape.
Correct : C. Shear
67. ______________ can be assigned as shear parameter.
Correct : B. Real Number.
68. Translation, rotation, scaling, reflection are examples of __________.
Correct : D. 2D transformation
69. Which table can be expanded so that vertices are cross referenced to corresponding edges?
Correct : A. Vertex table.
70. Every vertex is the end point for at least _______ edge.
Correct : B. 2
71. Each polygon has at least ____________ shared edge
Correct : A. 1
72. __________can be constructed with various combination of plane and curved surfaces.
Correct : B. Object boundaries.
73. Graphics package often provide routines for displaying internal components or ______ view of solid
objects.
Correct : A. Cross sectional.
74. ____________ rendering algorithms must be applied if a realistic rendering of the scene is required.
Correct : B. Surface
75. The coordinate reference defines the _________ for the plane of the camera film.
Correct : D. position and orientation.
76. The easiest rotation axes to handle are those that are ___________ to the coordinate.
Correct : A. parallel.
77. The line joining the red and the violet spectral points, called as ___________ line.
Correct : D. purple line.
78. Different tints are produced by adding _____________ pigment to the original color.
Correct : D. white
79. GKS stands for _____________.
Correct : A. graphical kernel system.
80. Visual pigment red have a peak sensitivity at wavelength of about __________ nm.
Correct : B. 630
81. The dominant frequency is also called as ___________.
Correct : C. hue
82. Data glove is used to grasp ____________ object.
Correct : B. virtual
83. Space partitioning representation is to describe interior properties by partitioning the spatial region containing an object into a set of small, non overlapping contiguous ______________.
Correct : B. solids
84. ___________ for a three dimensional graphics object is a set of surface polygons that enclose the object interior.
Correct : D. Boundary representations.
85. A polygon mesh approximation to a curved surface can be improved by dividing the surface into
smaller__________.
Correct : A. polygon facets.
86. A way of storing _________ is to create lists namely vertex table, edge table and polygon table.
Correct : D. geometric data.
87. The edge table contains pointers back to the ______________ to identify vertices for each polygon edge.
Correct : A. vertex table.
88. In a __________ parallel lines in the world coordinate scene project into parallel lines on the two
dimensional display plane.
Correct : C. parallel projection.
89. In ___________, parallel lines in the scene that are not parallel to the display plane are projected into
converging lines.
Correct : B. perpendicular projection.
90. __________ is applied by choosing maximum and minimum intensity values and a range of distances
over which the intensities are to vary.
Correct : A. Depth cueing.
91. The side of the plane that faces the _________ is called the inside face.
Correct : B. object interior.
92. The side of the plane that faces the _________ is called the outward face.
Correct : A. object exterior.
93. When polygons are specified with more than _________ vertices, it is possible that the vertices may not all lie in one plane.
Correct : B. 2
94. __________ is the number of control points in a Beizer curves.
Correct : C. Beizer polynomial.
95. Natural objects can be realistically described with _____________.
Correct : C. fractal geometry.
96. The representation of the amount of variation in object detail is represented with_________.
Correct : B. fractal dimension.
97. In depth cueing the lines farther are displayed with ____________.
Correct : B. decreasing intensity.
98. A technique commonly used for engineering drawing is to display the non visible lines as _________
lines.
Correct : D. dashed
99. ____________ describe a three dimensional object as a set of surfaces that separate the object interior
from the environment.
Correct : D. Boundary representations.
100. Sound pressure levels are measured in ______________.