MCQOPTIONS
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MCQOPTIONS
This section includes 88 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Graphics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In polygon clipping, line clipping algorithms can be used. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which type of clipping is used to clip character strings? |
| A. | text clipping |
| B. | line clipping |
| C. | sentence clipping |
| D. | word clipping |
| Answer» B. line clipping | |
| 3. |
How much memory is required to implement z-buffer algorithm for a 512 × 512 × 24 bit-plane image |
| A. | 768 KB |
| B. | 1 MB |
| C. | 1.5 MB |
| D. | 2 MB |
| Answer» D. 2 MB | |
| 4. |
A frame buffer array is addressed in row-major order for a monitor with pixel locations starting from (0, 0) and ending with (100, 100). What is address of the pixel (6, 10) ? Assume one bit storage per pixel and starting pixel location is at 0. |
| A. | 1016 |
| B. | 1006 |
| C. | 610 |
| D. | 616 |
| Answer» E. | |
| 5. |
Anti-aliasing is important to improve the readability of text. It deals with the: |
| A. | Spacing between two individual characters. |
| B. | Spacing of a group of characters. |
| C. | Underlining of letters. |
| D. | Elimination of "jaggies". |
| Answer» E. | |
| 6. |
The process of extracting a portion of a database or a picture inside or outside a specified region are called |
| A. | Transformation |
| B. | Projection |
| C. | Clipping |
| D. | Mapping |
| Answer» D. Mapping | |
| 7. |
CMYK model are used for |
| A. | Computer display |
| B. | Printing |
| C. | Painting |
| D. | None of these |
| Answer» C. Painting | |
| 8. |
............. identifies the picture portions that are exterior to the clip window |
| A. | Interior clipping |
| B. | Exterior clipping |
| C. | Extraction |
| D. | None of the above |
| Answer» C. Extraction | |
| 9. |
In perspective projection, the lines of projection are not parallel. Instead, they all coverage at a single point called__________________ |
| A. | interaction point |
| B. | Center of projection |
| C. | projection reference point |
| D. | center of projection or projection reference point |
| Answer» E. | |
| 10. |
In two dimensional viewing we have? |
| A. | 2D window and 3D viewport |
| B. | 2D window and 2D viewport |
| C. | 3D window and 2D viewport |
| D. | 3D window and 3D viewport |
| Answer» D. 3D window and 3D viewport | |
| 11. |
The front view of a cube, when it resting on HP on one of its faces and one other face is parallel to VP, is |
| A. | Square |
| B. | Rectangle |
| C. | Parallelogram |
| D. | Triangle |
| Answer» B. Rectangle | |
| 12. |
The perspective projection is more practical because the distant objects appear |
| A. | Smaller |
| B. | Larger |
| C. | Neither smaller nor larger |
| D. | None of these |
| Answer» B. Larger | |
| 13. |
A line can be represented by |
| A. | One point |
| B. | Two points |
| C. | Three points |
| D. | Four points |
| Answer» C. Three points | |
| 14. |
All the following hidden surface algorithms employ image space approach except |
| A. | scan line method |
| B. | depth sort method |
| C. | depth buffer method |
| D. | back face removal |
| Answer» E. | |
| 15. |
Coordinates of window are knows as .............. |
| A. | Screen coordinates |
| B. | World coordinates |
| C. | Device coordinates |
| D. | Cartesian coordinates |
| Answer» C. Device coordinates | |
| 16. |
Reflection of a point about x-axis, followed by a counter-clockwise rotation of 900, is equivalent to reflection about the line ? |
| A. | x = - y |
| B. | y = - x |
| C. | x + y = 1 |
| D. | x = y |
| Answer» E. | |
| 17. |
The return of electron beam to top left corner of the screen after one frame is called ............ |
| A. | Horizontal fly-back |
| B. | Vertical Fly-back |
| C. | Scanning |
| D. | None of the above |
| Answer» C. Scanning | |
| 18. |
Identify the colors produced in beam penetration method. |
| A. | Red, Green, Blue, White |
| B. | Red, Orange, Yellow, Green |
| C. | Red, Green, Blue |
| D. | Green, Red, White, Orange |
| Answer» C. Red, Green, Blue | |
| 19. |
Aspect ratio is generally defined as the ratio of the ? |
| A. | Vertical to horizontal points |
| B. | Horizontal to vertical points |
| C. | Either A or B , depending on the convention followed |
| D. | Vertical to (horizontal + vertical) points |
| Answer» D. Vertical to (horizontal + vertical) points | |
| 20. |
The midpoint circle drawing algorithm also uses the __of the circle to generate? |
| A. | two-way symmetry |
| B. | four-way symmetry |
| C. | both (a) and (b) |
| D. | eight-way symmetry |
| Answer» E. | |
| 21. |
There are two standard methods of mathematically representing a circle centered at the origin. They are? |
| A. | DDA, and Bresenham`s |
| B. | Polynomial Method, and Trigonometric Method |
| C. | Polynomial Method, and Bresenham`s |
| D. | Trigonometric Method and Bresenham`s |
| Answer» C. Polynomial Method, and Bresenham`s | |
| 22. |
A polygon in which the line segment joining any 2 points within the polygon lies completely inside the polygon is called__? |
| A. | convex polygon |
| B. | concave polygon |
| C. | both (a) and (b) |
| D. | none of these |
| Answer» B. concave polygon | |
| 23. |
Identify the features of Vector display |
| A. | High resolution, Jagged lines, Lack in color depth |
| B. | Smooth lines, Poor resolution, Black & White |
| C. | High resolution, Lack in color depth, Smooth lines |
| D. | Inexpensive, monochromatic, smooth lines |
| Answer» B. Smooth lines, Poor resolution, Black & White | |
| 24. |
Beam penetration method is usually used in ............................... |
| A. | LCD |
| B. | Raster Scan display |
| C. | Random scan display |
| D. | DVST |
| Answer» D. DVST | |
| 25. |
The purpose of flood gun in DVST is ........................... |
| A. | To store the picture pattern |
| B. | To slow down the flood electrons |
| C. | To enable color pixels |
| D. | To focus the electron beam |
| Answer» C. To enable color pixels | |
| 26. |
Coordinates of viewport are known as ............ |
| A. | World coordinates |
| B. | Polar coordinates |
| C. | Screen coordinates |
| D. | Cartesian coordinates |
| Answer» D. Cartesian coordinates | |
| 27. |
The basic geometric structures that describes a scene on display is called ................. |
| A. | Attributes |
| B. | Output primitive |
| C. | Lines |
| D. | Curves |
| Answer» C. Lines | |
| 28. |
Vector display is well suited for ................. |
| A. | Line drawing applications |
| B. | Animation |
| C. | Cartoons |
| D. | All of these |
| Answer» B. Animation | |
| 29. |
Two dimensional color model are |
| A. | RGB and CMKY |
| B. | RBG and CYMK |
| C. | RGB and CMYK |
| D. | None |
| Answer» D. None | |
| 30. |
Video devices with reduced volume, weight and power consumption are collectively known as ......... |
| A. | Light weight monitors |
| B. | Flat-panel displays |
| C. | CRT |
| D. | Portable display |
| Answer» C. CRT | |
| 31. |
There are 2 types of polygons. They are? |
| A. | squire and rectangle |
| B. | convex and concave |
| C. | octagon and convex |
| D. | hexagon and squire |
| Answer» C. octagon and convex | |
| 32. |
An RGB color system with 24 bits as storage per pixel is known as ........................ |
| A. | Color CRT |
| B. | True-color system |
| C. | RGB monitor |
| D. | Color- Depth |
| Answer» C. RGB monitor | |
| 33. |
The orthographic projection, projection lines are ____ to each other. |
| A. | Parallel |
| B. | Perpendicular |
| C. | Inclined |
| D. | Any of the above |
| Answer» B. Perpendicular | |
| 34. |
All the hidden surface algorithms employee image space approach except ? |
| A. | Depth sort method |
| B. | Scan line method |
| C. | Depth buffer method |
| D. | Back face removal |
| Answer» E. | |
| 35. |
The orthographic projection that show more than one side of an object are called |
| A. | Axonometric projection |
| B. | Isometric projection |
| C. | Both a & b |
| D. | None of these |
| Answer» D. None of these | |
| 36. |
Identify line clipping algorithms from the following |
| A. | Cohen- Sutherland algorithm |
| B. | Liang-Barsky clipping |
| C. | Nicholl-Lee-Nicholl clipping |
| D. | All of the above |
| Answer» E. | |
| 37. |
Gray scale is used in ............................ |
| A. | A Monitor that have color capability |
| B. | A Monitor that have no color capability |
| C. | Random scan display |
| D. | Raster scan display |
| Answer» C. Random scan display | |
| 38. |
To set line width attributes in a PHIGS package, ................... function is used |
| A. | setLineWidthScaleFactor(lw) |
| B. | setLineThickness(lw) |
| C. | setPolylineWidth(lw) |
| D. | setLineWidth(lw) |
| Answer» B. setLineThickness(lw) | |
| 39. |
The ...................... algorithm divides a 2D space into 9 regions, of which only the middle part (viewport) is visible. |
| A. | Cohen-Sutherland |
| B. | Liang Barsky |
| C. | Sutherland Hodegeman |
| D. | N-L-N |
| Answer» B. Liang Barsky | |
| 40. |
In third angle projection method, the object is supposed to be in |
| A. | First quadrant |
| B. | Second quadrant |
| C. | Third quadrant |
| D. | Fourth quadrant |
| Answer» D. Fourth quadrant | |
| 41. |
..................... controls the basic display properties of output primitives. |
| A. | Attribute parameter |
| B. | setpixel |
| C. | getpixel |
| D. | None of the above |
| Answer» B. setpixel | |
| 42. |
Shadow mask method is usually used in ............................... |
| A. | LCD |
| B. | Raster Scan display |
| C. | Random scan display |
| D. | DVST |
| Answer» C. Random scan display | |
| 43. |
The rectangle portion of the interface window that defines where the image will actually appear are called |
| A. | View port |
| B. | Transformation viewing |
| C. | Clipping window |
| D. | Screen coordinate system |
| Answer» B. Transformation viewing | |
| 44. |
The line segment from the view plane to the view reference point is called_____________ |
| A. | view-distance |
| B. | view-path |
| C. | both (a) and (b) |
| D. | Projection distance |
| Answer» B. view-path | |
| 45. |
Fractals deals with curves that are ? |
| A. | regularly irregular |
| B. | irregularly irregular |
| C. | regularly regular |
| D. | irregularly regular |
| Answer» B. irregularly irregular | |
| 46. |
By which ,we can take a view of an object from different directions and different distances ? |
| A. | Projection |
| B. | Rotation |
| C. | Translation |
| D. | Scaling |
| Answer» B. Rotation | |
| 47. |
Identify the features of DVST from the following. |
| A. | Monochromatic, Flicker free, Low resolution |
| B. | Monochromatic, Flicker free |
| C. | Color screens, Refresh monitors, High resolution |
| D. | Expensive, Low resolution |
| Answer» C. Color screens, Refresh monitors, High resolution | |
| 48. |
RGB model are used for |
| A. | Computer display |
| B. | Printing |
| C. | Painting |
| D. | None of these |
| Answer» B. Printing | |
| 49. |
Refreshing is not needed in DVST because of the presence of ................. |
| A. | Primary gun |
| B. | Flood gun |
| C. | Focusing anode |
| D. | Control grid |
| Answer» C. Focusing anode | |
| 50. |
According to Cohen-Sutherland algorithm, a line is completely outside the window if ............ |
| A. | The region codes of line endpoints have a '1' in same bit position. |
| B. | The endpoints region code are nonzero values |
| C. | If L bit and R bit are nonzero. |
| D. | The region codes of line endpoints have a '0' in same bit position. |
| Answer» B. The endpoints region code are nonzero values | |