Computer Graphics Mcq With Answer (VIth) Sem | Computer Graphics Previous Year Question Paper

1.    how many types of video compressions?
a. 2
b. 3
c. 4
d. 6

2.   which image file are lossy format?
a.    gif
b.     mpeg
c.    jpeg
d.    png

3.   how many steps process for creating a 3d animation?
a.    1
b.     2
c.    3
d.    4

4.  which compression provides some loss of quality?
a.    loss less
b.     lossy
c.    cel based
d.    object based

5.   in brasenham’s circle generation algorithm, if (x,y) is the current pixel position then y value of the next pixel position is:
a.    y or y + 1
b.     y alone
c.    y + 1 or y – 1
d.    y or y – 1

6.  bresenham’s algorithm seeks to select the optimum raster locations that represent a:
a.    straight line
b.     circle line
c.    polygon
d.    none of these

7.  the dda algorithm is a faster method for calculating pixel positions that direct use of line equation using y =mx + c because
a.    it eliminates foating point addition
b.     it eliminates foating point multiplication
c.    it eliminates rounding operation
d.    none of these

8.  ____________acts as anode in crt
a.    the phosphorous coating
b.     the glass panel
c.    the defectors
d.    none of these

9.    the slope of the line joining (1,2) and (1,3) is ____
a.    -1
b.     0
c.    1
d.    not defined

Explanation :
the slope of a line joining the points (x1​,y1​) and (x2​,y2​) is:
m=x2​−x1​y2​−y1​​
therefore, the slope of the line joining the points (1,2) and (1,3) is:
m=1−13−2​=01​= undefined.
hence, the slope of the line is not defined. 

10.     which device is used to grasp a virtual object?
a.    space ball
b.     data glove
c.     digitizer
d.    touch panels

11.       the maximum number of dots that can be displayed without overlap on crt is referred to as:
a.    refresh rate
b.     interlacing
c.    screen resolution
d.    none of these

12.      in circle drawing algorithm we use
a.    4- symmetry
b.     2- symmetry
c.    8- symmetry
d.    none of these

13.      clipping algorithms are
a.    two or three dimensional
b.     two dimensional
c.     three dimensional
d.    none of these

14.     when projection lines are perpendicular to the view plane then such type of projection is called:
a.    parallel
b.     perspective
c.    orthographic
d.    oblique

15.      the viewing transformation is formed by-
a.    translation
b.     translation and scaling
c.    translation, scaling and reflection
d.    translation, scaling and rotation

16.     minimum memory required for frame buffer when resolution is 800 x 600 and bit/pixel is 8?
a.    512 kb
b.     1 mb
c.    2 mb
d.    256 kb

17.     which is not image file format?
a.    bmp
b.     jpg
c.    tiff
d.    both (a) and (b)

18.     how many matrices are required to rotate an object about points (x,y)?
a.    2
b.     3
c.    4
d.    5

19.     if direction of rotation is z-axis, then direction of position of positive rotation is:
a.    y to x
b.     z to x
c.    x to y
d.    y to z

20.   jpeg stands for:
a.    joint photo experts gross
b.     joint photographic experts gross
c.    joint photographic experts group
d.    joint photographic expression group