Graphics and Multimedia Systems Graphics and Multimedia Systems are essential in creating effective presentations, documents, and other graphical outputs.

## 50 MCQs of Graphics and Multimedia Systems

1. s deals with the interface between input devices such as mice and tablets.

Ans. User interaction

2. Virtual reality attempts to immerse the user into a 3D virtual world. State True/False.

Ans. True

3. Visualization attempts to give users insight into complex information via ____

Ans. visual display

4. What are update dynamics?

Ans. It is interactive graphics facility to change shape, color and other properties.

5. DSP stands for .

Ans. Digital Siganl Processing.

6. Detection and clarification of standard patterns is related to .

Ans. Pattern detection

7. OCR Stands for ____

Ans. Optical character recognition

8. What is visualization?

Ans. technique for creating images, diagrams, or animations to communicate a message

9. Scientific visualization is the transformation, selection, or representation of data from ____

Ans. simulations

10. Zero intensity for each component gives the ___

Ans. darkest color.

11. The RGB color model define what is meant by red, green, and blue. State True/False

Ans. False, does not provide colors.

12. 3-bit representation allows each primary to vary independently between ____

Ans. two intensity levels

13. ____is commonly referred to as the true color representation.

Ans. 24-bits format

14. The color of a particular pixel is determined by the ___in the lookup table entry.

Ans. color value

15. DVST Stands for ___

Ans. Direct view storage tube

16. Choose the impact printer from the following list

Ans. dot-matrix printer

17. Feedback from the CRT face is provided by means of small tracking symbol called a cursor. (True/False).

Ans. True

18. Passive graphics device allows the user to communicate with the computer graphically. (True/False).

Ans. False – An active graphics device allows the user to communicate with the computer graphically.

19. CGM Stands for ____.

Ans. Computer Graphics Metafile

20. The basic building blocks for pictures are referred as ____

Ans. Output primitives

21. DDA stands for ____.

Ans. Digital Differential Analyzer

22. is accomplished by calculating intermediate positions along the line path between two specified endpoint positions.

Ans. Line drawing

23. Which method is used to load a specified color into the frame buffer at a specified position?

Ans. Set Pixel (x ,y)

24. The Cartesian slope-intercept equation for a straight line is ____

Ans. y = m . x + y

25. On raster systems, lines are plotted with ____

Ans. Pixels.

26. We can improve the performance of the DDA algorithm by separating the increments ___ and into integer and fractional parts.

Ans. m and l / m

27. The Bresenham’s line-drawing algorithm is based on drawing an approximation of the true line. (True/False)

Ans. True.

29. Integer only is efficient and fast and multiplication by 2 can be implemented by left-shift. (True/Fasle)

Ans. True.

30. How many electron guns are used in the DVST?

Ans. Two

31. In circle, spacing between plotted pixels can be adjusted by interchanging x and y, when the absolute value of the slope of the circle is ___.

Ans. greater than 1

32. Midpoint circle algorithm is otherwise called as

Ans. bresenhsam’s algorithm

33. Circle sections in adjacent octants within one quadrant are symmetric with respect to the ____ degree line dividing the two octants.

Ans. 45

34. Circle (x,y) = x2 + y2 – r2 any point (x,y) on the boundary of the circle with radius r satisfies the equation when ____.

a. circle(x,y)=0 b. circle(x,y)=1 c. circle(x,y)=-1 d. circle(x,y)>0

Ans. a. circle(x,y)=0

35. Ellipse has less symmetry than a circle. State (True/False).

Ans. True

36. f(x, y)=0 if

Ans.(x,y) is on the boundary of the ellipse

37. The ____ algorithm is an ingenious way of filling in irregular polygons.

Ans. Scan line fill

38. ET stands for ___.

Ans. edge table

39. _ and are the two algorithm used for boundary fill process.

Ans. Four-connected and eight-connected

40. How many parameters required for eight_fill procedure?

a. 3 b. 4 c. 5 d. 2

Ans. b. 4

41. 4-fill and 8-fill algorithms which involves recursion will not consume memory and time. (True/False)

Ans. False .These algorithms consume more memory and time.

42. Each translation follows a specific rule. (state True/False)

Ans. True

43. A rotation is a transformation that is performed by ____ the object around a fixed point known as the ____.

Ans. spinning, center of rotation

44. We can do if you want to double the size of given objects.

Ans. scaling

45. Each basic transformation take the form P’ = M1 .P + M2. State True/False.

Ans. True

46. Transforming from a Cartesian system to a non-Cartesian one is an easy process. State True/False

Ans. False

47. In interactive applications, it is more convenient to choose a direction V relative to a position .

Ans. P0

48. and ____ process require to transform the matrix.

Ans. Translate and rotate

49. Produces a mirror image of an object by rotating it 180o

Ans. Reflection

50. For reflection about any line y=mx + b, we employ the combination of__, and __.

Ans. Translate, rotate and reflect

51. transformation distorts the shape of an object..

Ans. Shear

#### Conclusion:

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