McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Computer Applications (MCA) .
Chapters
| 151. |
An inkjet printer places_______ of ink onto paper to print an image |
| A. | Small droplets |
| B. | large droplets |
| C. | Both a & b |
| D. | None of these |
| Answer» A. Small droplets | |
| 152. |
The size of these dot in inkjet printer usually lies between |
| A. | 50 to60 microns in diameter |
| B. | 20 to30 microns in diameter |
| C. | 30 to40 microns in diameter |
| D. | 10 to20 microns in diameter |
| Answer» A. 50 to60 microns in diameter | |
| 153. |
The speed of printing in inkjet printer is |
| A. | Fast |
| B. | Slow |
| C. | Not fast nor slow |
| D. | None of these |
| Answer» B. Slow | |
| 154. |
The inkjet printer is mostly common due to their |
| A. | Low cost |
| B. | Performance |
| C. | Both a & b |
| D. | None of these |
| Answer» C. Both a & b | |
| 155. |
The main property of________ is that their shape is irregular |
| A. | Fractals |
| B. | Quad-tree |
| C. | Rendering |
| D. | None |
| Answer» A. Fractals | |
| 156. |
Which type of quad tree is specifically used to store lines rather than points |
| A. | Point quad tree |
| B. | Edge quad tree |
| C. | Curves quad tree |
| D. | Areas quad tree |
| Answer» B. Edge quad tree | |
| 157. |
The painter algorithm are also called |
| A. | Depth sort algorithm |
| B. | Priority algorithm |
| C. | Both a & b |
| D. | None of these |
| Answer» C. Both a & b | |
| 158. |
The painter algorithm are based on the property of |
| A. | Polygon |
| B. | Frame buffer |
| C. | Depth buffer |
| D. | None of these |
| Answer» B. Frame buffer | |
| 159. |
The dynamic effect of an image is called |
| A. | Video |
| B. | Animation |
| C. | Super sampling |
| D. | None of these |
| Answer» B. Animation | |
| 160. |
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 |
| A. | Object-space method |
| B. | image-space method |
| C. | Both a & b |
| D. | None of these |
| Answer» A. Object-space method | |
| 161. |
The method which is based on the principle of checking the visibility point at each pixel position on the projection plane are called |
| A. | Object-space method |
| B. | image-space method |
| C. | Both a & b |
| D. | None of these |
| Answer» B. image-space method | |
| 162. |
The types of hidden surface removal algorithm are |
| A. | Depth comparison, Z-buffer, back-face removal |
| B. | Scan line algorithm, priority algorithm |
| C. | BSP method, area subdivision method |
| D. | All of these |
| Answer» D. All of these | |
| 163. |
Which surface algorithm is based on perspective depth? |
| A. | Depth comparison |
| B. | Z-buffer or depth-buffer algorithm |
| C. | subdivision method |
| D. | back-face removal |
| Answer» B. Z-buffer or depth-buffer algorithm | |
| 164. |
In which year Z- buffer algorithm are described? |
| A. | 1995 |
| B. | 1974 |
| C. | 1945 |
| D. | 1981 |
| Answer» B. 1974 | |
| 165. |
Z -buffer algorithm are |
| A. | Simplest algorithm |
| B. | Complex algorithm |
| C. | Largest algorithm |
| D. | None of these |
| Answer» A. Simplest algorithm | |
| 166. |
Which is a tree type of data structure in which every internal node has at most four children? |
| A. | Point quad tree |
| B. | Edge quad tree |
| C. | Quad tree |
| D. | None of these |
| Answer» C. Quad tree | |
| 167. |
The surfaces that is blocked or hidden from view in a 3D scene are known as |
| A. | Hidden surface |
| B. | Frame buffer |
| C. | Quad tree |
| D. | None of these |
| Answer» A. Hidden surface | |
| 168. |
24 The problem of hidden surface are |
| A. | Removal of hidden surface |
| B. | Identification of hidden surface |
| C. | Both a & b |
| D. | None of these |
| Answer» C. Both a & b | |
| 169. |
Why we need removal of hidden surface |
| A. | for displaying realistic view |
| B. | for determining the closest visible surface |
| C. | Both a & b |
| D. | None of these |
| Answer» C. Both a & b | |
| 170. |
How many types of hidden surface algorithm are |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 171. |
The algorithm of hidden surface is |
| A. | Object-space method |
| B. | image-space method |
| C. | Both a & b |
| D. | None of these |
| Answer» C. Both a & b | |
| 172. |
Hue of color is related to ? |
| A. | Luminance |
| B. | Saturation |
| C. | Incandescence |
| D. | Wavelength |
| Answer» D. Wavelength | |
| 173. |
The phenomenon of having a continuous glow of a beam on the screen even after it is removed is called as ? |
| A. | Fluorescence |
| B. | Persistence |
| C. | Phosphorescence |
| D. | Incandescence |
| Answer» C. Phosphorescence | |
| 174. |
All the hidden surface algorithms employe image space approach except ? |
| A. | Back face removal |
| B. | Depth buffer method |
| C. | Scan line method |
| D. | Depth sort method |
| Answer» A. Back face removal | |
| 175. |
Which of the following statement is true ? |
| A. | Request, sample and event are the three basic modes of input |
| B. | Keyboard is a device ideally suited for use in sample mode |
| C. | A mouse is typically a device for inputting an absolute position on the screen |
| D. | Special graphics hardware support is essential for providing menu-driven user interface to an application |
| Answer» A. Request, sample and event are the three basic modes of input | |
| 176. |
Choose the incorrect statement from the following about the basic ray tracing technique used in image synthesis ? |
| A. | In this technique rays are cast from the eye point through every pixel on the screen |
| B. | In this technique, viewing transformation are not supplied to the scene prior to rendering |
| C. | This technique removes hidden surfaces. |
| D. | In this technique rays are cast from the light source to the object in the scene |
| Answer» D. In this technique rays are cast from the light source to the object in the scene | |
| 177. |
The refresh rate below which a picture flickers is ? |
| A. | 25 |
| B. | 30 |
| C. | 35 |
| D. | 60 |
| Answer» A. 25 | |
| 178. |
If all the pixels within an octant have the same color, it is referred to as ..................... |
| A. | Heterogeneous octant |
| B. | Homogeneous octant |
| C. | Simultaneous octant |
| D. | Similar octant |
| Answer» B. Homogeneous octant | |
| 179. |
A structure is created using the function ........................ |
| A. | initstructure( ) |
| B. | startstructure( ) |
| C. | openstructure( ) |
| D. | none |
| Answer» C. openstructure( ) | |
| 180. |
................... is the reference portion value of each structure element. |
| A. | element pointer |
| B. | index |
| C. | attribute |
| D. | attribute index |
| Answer» A. element pointer | |
| 181. |
............... can be produced by interpolating shading patterns across the polygon surfaces to eliminate or reduce the presence of polygon edge boundaries. |
| A. | Rasterizing |
| B. | Rendering |
| C. | Smoothing |
| D. | None |
| Answer» B. Rendering | |
| 182. |
If the light is propagating in a material with a ____ index of refraction than the material whose surface it strikes, then total internal reflection may occur if the angle of incidence is ____than a certain critical angle |
| A. | higher, greater |
| B. | lower, lesser |
| C. | highet,lesser |
| D. | lower, greater |
| Answer» A. higher, greater | |
| 183. |
The equation occurring in finding the reflected vector is |
| A. | L’=2(N.L)N-L |
| B. | L’=2(N.L)N+L |
| C. | L’=2(N.L)N*L |
| D. | L’=2(N.L)N/L |
| Answer» A. L’=2(N.L)N-L | |
| 184. |
Curves can be broadly classified into three categories – which are |
| A. | explicit, implicit, and parametric curves. |
| B. | explicit, implicit, and nonparametric curves. |
| C. | explicit, bezier, and parametric curves. |
| D. | implicit, cubic and parametric curves |
| Answer» A. explicit, implicit, and parametric curves. | |
| 185. |
Approximating curve passes as close as possible while maintaining ______degrees of freedom |
| A. | maximum |
| B. | minimum |
| C. | zero |
| D. | five |
| Answer» B. minimum | |
| 186. |
Who developed the phong shading model |
| A. | Dui Tuang Phong |
| B. | Bui Tuong Phong |
| C. | Cohen-sutherland |
| D. | none of these |
| Answer» B. Bui Tuong Phong | |
| 187. |
ka the ambient diffuse coefficient of reflection always has a value |
| A. | >1 |
| B. | between 0 and 1 |
| C. | >0 |
| D. | <0 |
| Answer» B. between 0 and 1 | |
| 188. |
If we assume a uniform intensity of ambient light, Ia, then the intensity of the diffuse reflection at any point on the surface: I = _______where ka=the ambient diffuse coefficient of reflection |
| A. | ka/Ia |
| B. | ka * Ia, |
| C. | ka-Ia |
| D. | ka+Ia |
| Answer» B. ka * Ia, | |
| 189. |
which of the following is not a hidden surface removal algorithm |
| A. | Z-buffering |
| B. | Binary space partitioning |
| C. | Warnock algorithm |
| D. | Sutherland cohen |
| Answer» D. Sutherland cohen | |
| 190. |
The _________ is a geometric representation of the volume visible to the ________ |
| A. | viewing frustum ,virtual camera. |
| B. | virtual camera, viewing frustum , |
| C. | viewing cone, virtual camera |
| D. | virtual camera, viewing cone |
| Answer» A. viewing frustum ,virtual camera. | |
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