151. ______ is a rigid body transformation that moves objects without deformation.
Rotation.
Scaling
Translation
Transformation
Show me the answer
Answer: 3. Translation.
Explanation:
Translation is a rigid body transformation that moves objects without deformation.
In mathematical terms, translation can be represented as:
x′y′z′=xyz+txtytz
where (tx,ty,tz) are the translation distances along the x, y, and z axes, respectively.
152. A two dimensional ______ is applied to an object by repositioning it along a circular path in the xy plane.
Rotation.
Scaling
Translation
Transformation
Show me the answer
Answer: 1. Rotation.
Explanation:
Rotation is a transformation that repositions an object along a circular path in the xy plane.
The rotation of a point (x,y) by an angle θ can be represented as:
(x′y′)=(cosθsinθ−sinθcosθ)(xy)
153. Successive scaling operations are ______.
Additive
Subtractive
Multiplicative
Infinite
Show me the answer
Answer: 3. Multiplicative.
Explanation:
Successive scaling operations are multiplicative because each scaling transformation is applied by multiplying the current coordinates by a scaling matrix.
154. A rigid body change in coordinate positions is referred to as ______ transformation.
Rigid body
.Rigid
Rigid motion
Rigid changing
Show me the answer
Answer: 3. Rigid motion.
Explanation:
Rigid motion refers to a transformation that changes the coordinate positions of an object without altering its shape or size.
This includes translations and rotations, which preserve distances between points.
155. ______ often involve inverse matrix calculations.
Matrix transformation.
Composite transformation.
Finite transformation matrix.
Infinite transformation matrix.
Show me the answer
Answer: 2. Composite transformation.
Explanation:
Composite transformations often involve inverse matrix calculations because they combine multiple transformations, and sometimes it is necessary to reverse one or more of these transformations.
156. ______ is a transformation that produces a mirror image of an object.
Shape.
Vector
Scalar
Reflection
Show me the answer
Answer: 4. Reflection.
Explanation:
Reflection is a transformation that produces a mirror image of an object.
157. When objects are to be displayed with color or shaded surfaces we apply ______.
Object rendering.
View rendering
Surface rendering
Parameter rendering
Show me the answer
Answer: 3. Surface rendering.
Explanation:
Surface rendering is used to display objects with color or shaded surfaces.
This involves calculating the interaction of light with the object's surface to determine its appearance.
158. ______ include the intensity and positions of light sources and general background illumination required for a scene.
Object rendering.
Viewing specifications.
Surface rendering
Lighting specifications
Show me the answer
Answer: 4. Lighting specifications.
Explanation:
Lighting specifications include the intensity and positions of light sources and general background illumination required for a scene.
These specifications are crucial for realistic rendering of objects in a scene.
159. In surface rendering procedures can then be applied to generate at the correct illumination and ______ of the scene.
Viewing specifications.
Contrast
Color
Shadow regions.
Show me the answer
Answer: 4. Shadow regions.
Explanation:
In surface rendering, procedures are applied to generate the correct illumination and shadow regions of the scene.
Shadows are created by determining which parts of the scene are occluded from light sources.
160. Objects displayed with ______, so that the intensity of lines decreases from the front to the back of the object.
Depth cueing
Parallel projection.
Perpendicular projection.
Perspective projection.
Show me the answer
Answer: 1. Depth cueing.
Explanation:
Depth cueing is a technique where the intensity of lines decreases from the front to the back of the object, giving a sense of depth.
This helps in perceiving the relative distances of objects in a scene.
161. ______ removes the part of the visible surfaces to show internal structure.
Surface rendering.
Surface identification.
Cutaway view.
Exploded view.
Show me the answer
Answer: 3. Cutaway view.
Explanation:
A cutaway view removes part of the visible surfaces to show the internal structure of an object.
This is commonly used in technical drawings and illustrations.
162. Three dimensional views can be obtained by ______ a raster scan image from a vibrating flexible mirror.
Reflecting.
Observing
Refracting
Deflecting
Show me the answer
Answer: 1. Reflecting.
Explanation:
Reflecting a raster scan image from a vibrating flexible mirror can produce three-dimensional views.
This technique is used in some types of 3D displays.
163. Stereoscopic devices present ______ views of the scene.
1
2
3
4
Show me the answer
Answer: 2. 2.
Explanation:
Stereoscopic devices present two views of the scene, one for each eye, to create a 3D effect.
This mimics the way human eyes perceive depth.
164. The mirror image for a two dimensional reflection is generated relative to an ______ by rotation the object 180 degrees about the reflection axis.
Axis of refraction.
Axis of reflection.
Axis of restoration.
Axis of deflection
Show me the answer
Answer: 2. Axis of reflection.
Explanation:
The mirror image for a two-dimensional reflection is generated relative to an axis of reflection by rotating the object 180 degrees about this axis.
Mathematically, this can be represented as:
165. 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.
180
270
360
Show me the answer
Answer: 2. 180.
Explanation:
The mirror image for a two-dimensional reflection is generated by rotating the object 180 degrees about the reflection axis.
This rotation effectively flips the object across the axis.
166. ______ transformations can be used to modify object shape.
Translation.
Shear
Reflection
Scaling
Show me the answer
Answer: 2. Shear.
Explanation:
Shear transformations can be used to modify the shape of an object by slanting it along one or more axes.
For example, a shear transformation along the x-axis can be represented as:
167. ______ can be assigned as shear parameter.
Integer.
Random Number.
Real Number
Floating Point.
Show me the answer
Answer: 3. Real Number.
Explanation:
Real numbers can be assigned as shear parameters because shear transformations can involve any real-valued factor.
This allows for precise control over the degree of shearing.
168. Translation, rotation, scaling, reflection are examples of ______.
Point plotting.
Graphics
Image transformation.
2D transformation
Show me the answer
Answer: 4. 2D transformation.
Explanation:
Translation, rotation, scaling, and reflection are examples of 2D transformations.
These transformations are fundamental in computer graphics for manipulating objects in a two-dimensional space.
169. Which table can be expanded so that vertices are cross referenced to corresponding edges?
Vertex table.
Edge table.
Polygon table.
Expanded vertex table.
Show me the answer
Answer: 1. Vertex table.
Explanation:
The vertex table can be expanded so that vertices are cross-referenced to corresponding edges.
This helps in efficiently storing and retrieving geometric data.
170. Every vertex is the end point for at least ______ edge.
1
2
3
4
Show me the answer
Answer: 2. 2.
Explanation:
Every vertex is the endpoint for at least two edges.
This is because a vertex is typically shared between two edges in a polygonal mesh.
171. Each polygon has at least ______ shared edge
1
2
3
4
Show me the answer
Answer: 1. 1.
Explanation:
Each polygon has at least one shared edge.
This is because polygons are typically connected to other polygons in a mesh.
172. ______ can be constructed with various combination of plane and curved surfaces.
Objects.
Surface
Object boundaries.
Surface boundaries
Show me the answer
Answer: 3. Object boundaries.
Explanation:
Object boundaries can be constructed with various combinations of plane and curved surfaces.
This allows for the creation of complex 3D models.
173. Graphics package often provide routines for displaying internal components or ______ view of solid objects.
Cross sectional.
Cross fill.
Hatch fill.
Solid fill.
Show me the answer
Answer: 1. Cross sectional.
Explanation:
Graphics packages often provide routines for displaying internal components or cross-sectional views of solid objects.
This is useful for visualizing the internal structure of objects.
174. ______ rendering algorithms must be applied if a realistic rendering of the scene is required.
Object.
Surface
View
Parameter
Show me the answer
Answer: 2. Surface.
Explanation:
Surface rendering algorithms must be applied if a realistic rendering of the scene is required.
These algorithms simulate the interaction of light with surfaces to produce realistic images.
175. The coordinate reference defines the ______ for the plane of the camera film.
Plane and surface.
Position and interface.
Plane and coordinate.
Position and orientation
Show me the answer
Answer: 4. Position and orientation.
Explanation:
The coordinate reference defines the position and orientation for the plane of the camera film.
This is crucial for determining how the scene is projected onto the film.
176. The easiest rotation axes to handle are those that are ______ to the coordinate.
Parallel.
Straight
Perpendicular
Opposite
Show me the answer
Answer: 1. Parallel.
Explanation:
The easiest rotation axes to handle are those that are parallel to the coordinate axes.
This simplifies the rotation transformation because it aligns with the standard coordinate system.
177. ______ transformations can be used to modify object shape.
Translation.
Shear
Reflection
Scaling
Show me the answer
Answer: 2. Shear.
Explanation:
Shear transformations can be used to modify the shape of an object by slanting it along one or more axes.
This is useful for creating effects like slanting or skewing.
178. The line joining the red and the violet spectral points, called as ______ line.
Violet line.
Magenta line
Red line.
Purple line.
Show me the answer
Answer: 4. Purple line.
Explanation:
The line joining the red and violet spectral points is called the purple line.
This line represents the transition between the red and violet ends of the visible spectrum.
179. Different tints are produced by adding ______ pigment to the original color.
Red.
Blue
Black
White
Show me the answer
Answer: 4. White.
Explanation:
Different tints are produced by adding white pigment to the original color.
This lightens the color, creating a tint.
180. GKS stands for ______.
Graphical kernel system.
Graphics kernel symbol.
Graphics kernel system.
Graphics kernel systems.
Show me the answer
Answer: 1. Graphical kernel system.
Explanation:
GKS stands for Graphical Kernel System.
It is a standard for 2D graphics programming.
181. Visual pigment red have a peak sensitivity at wavelength of about ______ nm.
630
530
450
Show me the answer
Answer: 2. 630.
Explanation:
Visual pigment red has a peak sensitivity at a wavelength of about 630 nm.
This is within the red part of the visible spectrum.
182. The dominant frequency is also called as ______.
Saturation.
Hue
Luminance
Brightness
Show me the answer
Answer: 2. Hue.
Explanation:
The dominant frequency is also called hue.
Hue represents the color itself, such as red, green, or blue.
183. Data glove is used to grasp ______ object.
Binary.
Virtual
Existing
Real
Show me the answer
Answer: 2. Virtual.
Explanation:
A data glove is used to grasp virtual objects.
It is commonly used in virtual reality environments.
184. Space partitioning representation is to describe interior properties by partitioning the spatial region containing an object into a set of small, non-overlapping contiguous ______.
Objects.
Solids
Triangles
Liquid
Show me the answer
Answer: 2. Solids.
Explanation:
Space partitioning representation describes interior properties by partitioning the spatial region containing an object into a set of small, non-overlapping contiguous solids.
This is useful for representing complex 3D objects.
185. ______ for a three dimensional graphics object is a set of surface polygons that enclose the object interior.
Surface rendering.
Surface identification.
Space partitioning representations.
Boundary representations.
Show me the answer
Answer: 4. Boundary representations.
Explanation:
Boundary representations for a three-dimensional graphics object are a set of surface polygons that enclose the object interior.
This is a common way to represent 3D objects in computer graphics.
186. A polygon mesh approximation to a curved surface can be improved by dividing the surface into smaller ______.
Polygon facets.
Squares
Octagon facets.
Circles
Show me the answer
Answer: 1. Polygon facets.
Explanation:
A polygon mesh approximation to a curved surface can be improved by dividing the surface into smaller polygon facets.
This increases the resolution and accuracy of the approximation.
187. A way of storing ______ is to create lists namely vertex table, edge table and polygon table.
Convergence data.
Polygon surface table.
Storage table.
Geometric data.
Show me the answer
Answer: 4. Geometric data.
Explanation:
A way of storing geometric data is to create lists, namely vertex table, edge table, and polygon table.
These tables help in efficiently storing and retrieving the geometric properties of objects.
188. The edge table contains pointers back to the ______ to identify vertices for each polygon edge.
Vertex table.
Edge table.
Polygon table.
Expanded vertex table.
Show me the answer
Answer: 1. Vertex table.
Explanation:
The edge table contains pointers back to the vertex table to identify vertices for each polygon edge.
This helps in maintaining the connectivity between vertices and edges.
189. In a ______ parallel lines in the world coordinate scene project into parallel lines on the two dimensional display plane.
Plane projection.
Parallel projection.
Perpendicular projection.
Perspective projection.
Show me the answer
Answer: 2. Parallel projection.
Explanation:
In a parallel projection, parallel lines in the world coordinate scene project into parallel lines on the two-dimensional display plane.
This type of projection preserves parallelism and is commonly used in technical drawings.
190. In ______, parallel lines in the scene that are not parallel to the display plane are projected into converging lines.
Plane projection.
Parallel projection
Perpendicular projection
Perspective projection.
Show me the answer
Answer: 4. Perspective projection.
Explanation:
In perspective projection, parallel lines in the scene that are not parallel to the display plane are projected into converging lines.
This creates a sense of depth and realism in the rendered image.
191. ______ is applied by choosing maximum and minimum intensity values and a range of distances over which the intensities are to vary.
Depth cueing.
Parallel projection.
Perpendicular projection.
Perspective projection.
Show me the answer
Answer: 1. Depth cueing.
Explanation:
Depth cueing is applied by choosing maximum and minimum intensity values and a range of distances over which the intensities are to vary.
This technique helps in perceiving the depth of objects in a scene.
192. The side of the plane that faces the ______ is called the inside face.
Object exterior.
Object
Object interior
Solid
Show me the answer
Answer: 3. Object interior.
Explanation:
The side of the plane that faces the object interior is called the inside face.
This is important for determining the orientation of surfaces in 3D models.
193. The side of the plane that faces the ______ is called the outward face.
Object exterior.
Object
Object interior.
Solid
Show me the answer
Answer: 1. Object exterior.
Explanation:
The side of the plane that faces the object exterior is called the outward face.
This is important for determining the visibility of surfaces in 3D rendering.
194. When polygons are specified with more than ______ vertices, it is possible that the vertices may not all lie in one plane.
3
2
1
0
Show me the answer
Answer: 1. 3.
Explanation:
When polygons are specified with more than three vertices, it is possible that the vertices may not all lie in one plane.
This can lead to issues in rendering and shading.
195. ______ is the number of control points in a Beizer curves.
Polynomial.
Beizer polynomial
Curve polynomial.
Beizer integer.
Show me the answer
Answer: 2. Beizer polynomial.
Explanation:
The number of control points in a Bezier curve is called the Bezier polynomial.
The degree of the polynomial is one less than the number of control points.
196. Natural objects can be realistically described with ______.
Natural geometry.
Fractal geometry.
Similarity geometry.
Euclidean geometry.
Show me the answer
Answer: 2. Fractal geometry.
Explanation:
Natural objects can be realistically described with fractal geometry.
Fractals are used to model complex natural shapes like mountains, clouds, and coastlines.
197. The representation of the amount of variation in object detail is represented with ______.
Fractal geometry.
Fractal definition.
Fractal dimension
Fractal generation.
Show me the answer
Answer: 3. Fractal dimension.
Explanation:
The representation of the amount of variation in object detail is represented with fractal dimension.
Fractal dimension quantifies the complexity of a fractal shape.
198. In depth cueing the lines farther are displayed with ______.
Increasing intensity.
Increasing color.
Decreasing intensity
Decreasing color.
Show me the answer
Answer: 3. Decreasing intensity.
Explanation:
In depth cueing, the lines farther away are displayed with decreasing intensity.
This helps in perceiving the relative distances of objects in a scene.
199. A technique commonly used for engineering drawing is to display the non-visible lines as ______ lines.
Straight.
Dot
Curved
Dashed
Show me the answer
Answer: 4. Dashed.
Explanation:
A technique commonly used for engineering drawing is to display the non-visible lines as dashed lines.
This helps in distinguishing between visible and hidden parts of an object.
200. ______ describe a three dimensional object as a set of surfaces that separate the object interior from the environment.
Surface rendering.
Surface identification.
Space partitioning representations.
Boundary representations.
Show me the answer
Answer: 4. Boundary representations.
Explanation:
Boundary representations describe a three-dimensional object as a set of surfaces that separate the object interior from the environment.
This is a common way to represent 3D objects in computer graphics.
For example, scaling a point (x,y) by factors (sx,sy) can be represented as:
(x′y′)=(sx00sy)(xy)
For example, if you have a transformation matrix T, its inverse T−1 can be used to undo the transformation.
For example, reflecting a point (x,y) across the x-axis can be represented as: