# Computer Graphics MCQ Questions And Answers

## 21. Sutherland Hodgeman algorithm is applied on

1. Convex polygon
2. Line segment
3. Smooth curves
4. Concave polygon

Explanation: On Convex polygon, Sutherland Hodgeman algorithm can be applied.

## 22. Raster graphics are composed of

1. Paths
2. Pixels
3. Palette
4. Dots

Explanation: Raster graphics are composed of pixels and so option B is correct.

## 23. Which controller is used to read each successive byte of data from the frame buffer?

1. Design controller
2. Data controller
3. Display controller
4. Digital controller

Explanation: Digital controller is used to read each successive byte of data from the frame buffer.

## 24. Which of the following are the features of Computer Graphics?

1. Deletion and manipulation of graphical images by computer
2. Creation and deletion of images by computer only
3. Creation and manipulation of graphics by computer
4. Creation of artificial images by computer only

Explanation: Creation and manipulation of graphics by computer is the the feature of Computer Graphics. So, option C is correct.

## 25. Which one of the following terms is used for the area of the computer captured by an application?

1. Window
2. Display
3. Viewport
4. None of the above

Explanation: The area of the computer captured by an application is called Viewport. The display method of the part selected or the design in which the selected element is viewed is called a viewport. So, option C is correct.

## 26. If the magnitude of the curve slope is lesser than 1, then

1. We can plot horizontal spans
2. We can plot vertical spans
3. Both (A) and (B)
4. None of the above

Explanation: If the magnitude of the curve slope is lesser than 1, then we can plot vertical spans and if the magnitude of the curve slope is greater than 1, then we can plot horizontal spans.

## 27. Which of the following is not a component of the memory tube display?

1. Collector
2. Ground
3. Flooding gun
4. Liquid crystal

Explanation: The component of the memory tube display are: Flooding gun, Collector, Ground. So, Liquid crystal is not a component of the memory tube display.

## 28. We translate a two-dimensional point by adding

1. Translation points
2. Translation difference
3. Translation distances
4. None of the above

Explanation: We translate a two-dimensional point by adding translation distances.

## 29. Which of the following is the purpose for using clipping in computer graphics?

1. Copying
3. Zooming
4. Removing objects and lines