Mock Test on Computer Graphics Questions and Answers

Mock Test on Computer Graphics Questions and Answers-1

  1. A three dimensional graphics has

Select one:
 A. Two axes
 B. Three axes
 C. Both a & b
 D. None of these

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The  answer is: Three axes

 2. Raster images are more commonly called

Select one:
 A. Pix map
 B. bitmap
 C. both a & b
 D. none of these

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The  answer is: bitmap

 3. The rectangle portion of the interface window that defines where the image will actually appear are called

Select one:
 a. View port
 b. Screen coordinate system
 c. Clipping window
 d. Transformation viewing

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The  answer is: View port

 4. The ......... simply reads each successive byte of data from the frame buffer?

Select one:
 a. Digital Controller
 b. Data controller
 c. Display Controller
 d. None

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The  answer is: Display Controller

 5. Plasma panel is an __ device

Select one:
 a. Emissive
 b. Non-Emissive
 c. Expensive
 d. None

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The  answer is: Emissive

 6. In bresenhan's algorithm error term is initialized to ?

Select one:
 a. 1
 b. 1/2
 c. 0
 d. -1/2

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The  answer is: 0

 7. The equation of translation transformation will be

Select one:
 A. X1=x+Tx,y1=y+Ty,z1=z+Tz
 B. X1=x.sx,y1=y.sy,z1=z.sz
 C. Both of these
 D. None

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The  answer is: X1=x+Tx,y1=y+Ty,z1=z+Tz

 8. Plasma device converts

Select one:
 a. Light into graphical energy
 b. None
 c. Light into electrical energy
 d. Electrical energy into light

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The  answer is: Electrical energy into light

 9. DVST means

Select one:
 a. Display view store tube
 b. None
 c. Direct view storage tube
 d. Domain view storage tube

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The  answer is: Direct view storage tube

 10.Reflection of a point about x-axis, followed by a counter-clockwise rotation of 900 , is equivalent to reflection about the line ?

Select one:
 a. x + y = 1
 b. x = -y
 c. y = - x
 d. x = y

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The  answer is: x = y

11.The transformation in which the dimension of an object are changed relative to a specified fixed point is called

Select one:
 a. Rotation
 b. Scaling
 c. Reflection
 d. Translation

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The  answer is: Scaling
 12. ................... is responsible for accessing the frame buffer to refresh the screen.

Select one:
 a.  Video controller
 b. Frame Buffer
 c. CPU
 d.  Graphics package

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The  answer is:  Video controller

13.Two consecutive scaling transformation t1 and t2 are

Select one:
 a. None of these
 b. Multiplicative
 c. Additive
 d. Subtractive

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The  answer is: Multiplicative

 14.The equation of scaling transformation will be

Select one:
 A.X1=x+Tx,y1=y+Ty,z1=z+Tz
 B.X1=x.sx,y1=y.sy,z1=z.sz
 C.Both of these
 D. None

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The  answer is:  X1=x.sx,y1=y.sy,z1=z.sz

 15. In which environment has been one of the most accepted tool for computer graphics in business and graphics design studios

Select one:
 a. Macintosh
 b. multimedia
 c. quake
 d. graphics

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The  answer is: Macintosh

 16. Why a circle drawn on the screen appears to be elliptical ?

Select one:
 a. It is due to the aspect ratio of monitor
 b. Our eyes are not at the same level on screen
 c. CRT is completely spherical
 d. Screen has rectangular shape

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The  answer is: It is due to the aspect ratio of monitor

 17. Random scan monitors draw a picture one line at a time

Select one:
 True
 False

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The  answer is 'True'.

18.he maximum number of points that can be displayed without overlap on a CRT

Select one:
 a. Aspect Ratio
 b. Pixel
 c. Resolution
 d. Brightness

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The  answer is: Resolution

19.Pixel can be arranged in a regular

Select one:
 A. One dimensional grid
 B. Three dimensional grid
 C. Two dimensional grid
 D. None of these

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The  answer is: Two dimensional grid

 20.Higher the number of pixels,_______ the image quality

Select one:
 A. Bad
 B. Better
 C. Smaller
 D. None of above
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The  answer is: Better

21.A composite transformation matrix can be made by determining the ________of matrix of the individual transformation

Select one:
 A.Addition
 B.Subtraction
 C.Product
 D.None of these

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The  answer is: Product

22.LCD is an ______ device

Select one:
 a. Emissive
 b. Non_Emissive
 c. Gas Discharge
 d. None

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The  answer is: Non_Emissive

23.Raster scan monitors draw a picture one line at a time

Select one:
 True
 False

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The  answer is 'False'.

24.Random scan systems are designed for

Select one:
 a. None
 b. Line drawing application
 c. Path drawing application
 d. Pixel drawing application

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The  answer is: Line drawing application

25.The transformation in which an object is moved from one position to another in circular path around a specified pivot point is called

Select one:
 a. Rotation
 b. Reflection
 c. Scaling
 d. Translation

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The  answer is: Rotation

26.Types of computer graphics are

Select one:
 A. Vector and raster
 B. Scalar and raster
 C. Vector and scalar
 D. None of these

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The  answer is: Vector and raster

27.The transformation that disturbs the shape of an object are called

Select one:
 a. Shear
 b. Scaling
 c. Rotation
 d. Reflection

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The  answer is: Shear

28.The amount of time the phosphor produce light or shine is controlled by chemical composition of the phosphor. This is known as

Select one:
 a. Generators
 b. None of the these
 c. Persistence
 d. Resistance

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The  answer is: Persistence

29.In Bresenham's algorithm, while generating a circle , it is easy to generate
Select one:
 a. One octant first and other by successive reflection
 b. All octants
 c. One octant first and other by successive translation
 d. One octant first and other by successive rotation

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The  answer is: One octant first and other by successive reflection

30.Computer graphics was first used by

Select one:
 a. William fetter in 1960
 b. James fetter in 1969
 c. John Taylor in 1980
 d. James gosling in 1991
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The  answer is: William fetter in 1960