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650+ Computer Graphics Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electronics and Communication Engineering .

101.

An M shaped closed figure is an example of ____ Polygon

A. convex
B. concave
C. complex
D. linear
Answer» B. concave
102.

Polygons are formed by two scan lines and two _____ in polygon representation using trapizoid primitive.

A. vertical lines
B. line segments
C. scan lines
D. horizontal lines
Answer» B. line segments
103.

Polygons are formed by two ____ lines and two Line segments in polygon representation using trapizoid primitive.

A. vertical
B. segmented
C. scan
D. horizontal lines
Answer» B. segmented
104.

A region S is ____, if for atleast 2 points x1 and x2 in S, the straight line segment connecting x1 and x2 is not contained entirely in S.

A. concave
B. convex
C. linear
D. polygon with hole
Answer» A. concave
105.

A concave polygon is one which is not ___

A. non-linear
B. linear
C. convex
D. none
Answer» C. convex
106.

A convex polygon is a polygon such that for any two points inside the polygon, all points on the line segment connecting them are __________the Polygon

A. also inside
B. outside
C. also partially inside
D. partially outside
Answer» A. also inside
107.

A ______ polygon is a polygon such that for any two points inside the polygon, all points on the line segment connecting them are also inside the Polygon

A. concave
B. convex
C. complex
D. linear
Answer» B. convex
108.

A convex polygon is a polygon such that for any two points ____ the polygon, all points on the line segment connecting them are also ____ the Polygon

A. inside, outside
B. outside, outside
C. outside, outside
D. inside, inside
Answer» D. inside, inside
109.

One of the representation of Polygon is using

A. rectangle primitive
B. trapizoid primitive
C. circle primitive
D. square primitive
Answer» B. trapizoid primitive
110.

For Graphics devices who do not support polygon as a whole _____ approach is used to draw polygon

A. trapizoid
B. lines and points
C. rectangle
D. lines and circles
Answer» B. lines and points
111.

Polygon can be drawn as series of ______

A. triangles
B. rectangles
C. squares
D. trapizoids
Answer» D. trapizoids
112.

Operation code _____ is used to draw a polygon

A. 3 or greater
B. 3 or lesser
C. 2 or greater
D. n or lesser
Answer» A. 3 or greater
113.

The devices which support polygons drawing primitive directly as Polygon shape, save the polygon as a ____

A. unit
B. drawing
C. rectangle
D. square
Answer» A. unit
114.

In one of the polygon representation ,Polygons are formed by two _____and two _____

A. scan lines & vertical lines
B. scan lines & line segments
C. vertical lines & line segments
D. horizontal lines & scan lines
Answer» B. scan lines & line segments
115.

Scaling factor Sx in Viewing transformation is given by ____

A. (xvmax-xvmin)/(xwmax-xwmin)
B. (xwmax-xwmin)/(xvmax-xvmin)
C. (xvmin-xvmax)/(xwmax-xwmin)
D. (xvmin-xvmax)/(xwmin-xwmax)
Answer» A. (xvmax-xvmin)/(xwmax-xwmin)
116.

Scaling factor Sy in Viewing transformation is given by ____

A. (yvmax-yvmin)/(ywmax-ywmin)
B. (ywmax-ywmin)/(yvmax-yvmin)
C. (yvmin-xvmax)/(ywmax-xwmin)
D. (xvmin-xvmax)/(ywmin-ywmax)
Answer» A. (yvmax-yvmin)/(ywmax-ywmin)
117.

Scaling factor Sx in Viewing transformation is given by ____

A. viewport x extent / window y extent
B. window x extent / viewport x extent
C. viewport x extent / window x extent
D. viewport y extent / window x extent
Answer» C. viewport x extent / window x extent
118.

Scaling factor Sy in Viewing transformation is given by ____

A. viewport x extent / window y extent
B. viewport y extent / window y extent
C. viewport y extent / window x extent
D. window y extent / viewport y extent
Answer» B. viewport y extent / window y extent
119.

The mapping of the window (modeling coordinates) to viewport (device coordinates) is a 2D

A. windowing
B. viewing transformation
C. window transformation
D. none
Answer» B. viewing transformation
120.

The clipping window is mapped into a

A. window
B. clipping window
C. world coordinates
D. viewport
Answer» D. viewport
121.

Representation of an object measured in some physical units

A. modelling coordinate system
B. world coordinate system
C. screen coordinate system
D. none
Answer» A. modelling coordinate system
122.

Representation of a set of objects, all measured in the same physical units.

A. modelling coordinate system
B. world coordinate system
C. screen coordinate system
D. none
Answer» B. world coordinate system
123.

The space within the image is displayed

A. modelling coordinate system
B. world coordinate system
C. screen coordinate system
D. none
Answer» C. screen coordinate system
124.

The process of going from a window in world coordinates to a viewport in screen coordinates

A. windowing
B. viewing transformation
C. window transformation
D. none
Answer» B. viewing transformation
125.

As the window increases in size, the image in the viewport_______ in size in viewing transformation

A. increases
B. doubles
C. decreases
D. remains the same
Answer» C. decreases
126.

Maintain ______ size and position between clipping window and viewport in viewing transformation.

A. equal
B. relative
C. non_relative
D. non-equal
Answer» B. relative
127.

In viewing transformation maintain ______ size and______ between clipping window and viewport

A. equal , position
B. non-equal, position
C. relative, position
D. un-equal , position
Answer» C. relative, position
128.

In viewing transformation maintain relative size and ______ between clipping window and viewport

A. window
B. viewport
C. position
D. none
Answer» C. position
129.

Maintain relative ____ and position between clipping window and viewport in viewing transformation

A. viewport
B. size
C. window
D. none
Answer» B. size
130.

An area on a display device to which a window is mapped, defines where it is to be displayed

A. viewport
B. size
C. window
D. none
Answer» A. viewport
131.

In viewing transformation maintain relative size an position between clipping window and viewport. ie a point in window Xw, Yw is transformed to Xv, Yv where Xv=

A. xvmin +( xw+xwmin )sx
B. xvmin +( xw-xwmin )sx
C. xvmin -( xw+xwmin )sx
D. xvmin -( xw-xwmin )sx
Answer» B. xvmin +( xw-xwmin )sx
132.

In viewing transformation maintain relative size an position between clipping window and viewport. ie a point in window Xw, Yw is transformed to Xv, Yv where Yv=

A. yvmin +(yw+ywmin )sx
B. yvmin +( yw-ywmin )sy
C. xvmin -( yw+ywmin )sx
D. yvmin -( yw-xwmin )sy
Answer» B. yvmin +( yw-ywmin )sy
133.

In viewing transformation perform _____ transformation that scales the window area to the size of the view port

A. translation
B. rotation
C. scaling
D. shear
Answer» C. scaling
134.

In viewing transformation perform scaling transformation that scales the _____ area to the size of the ______

A. window, viewport
B. viewport, window
C. window, screen
D. screen, viewport
Answer» A. window, viewport
135.

In viewing transformation _____the scaled window area to the position of the viewport.

A. rotate
B. translate
C. shear
D. scale
Answer» B. translate
136.

A window with 6 clipping boundaries can be considered under___ clipping.

A. generalised
B. window
C. viewport
D. none
Answer» A. generalised
137.

In _____ clipping , cliiping routine can be performed along any line.

A. viewport
B. window
C. generalised
D. none
Answer» C. generalised
138.

Generalised clipping algorithm deals with clipping against _____ line.

A. horizontal
B. veritical
C. arbitrary
D. both horizontal & vertical
Answer» C. arbitrary
139.

Generalised clipping algorithm deals with clipping against _____ line.

A. only horizontal
B. only veritical
C. arbitrary
D. both horizontal & vertical
Answer» C. arbitrary
140.

What will be the output set after clipping left and clipping right?

A. 1 2 3 4 6 7 8 9 10 11 11’ and 1’2 3 4 5’ 6’ 7 8 9 10 11 11’
B. 1’ 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
C. 1 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
D. 1’ 2 3 4 6 7 8 9 10 11 11’ and 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’
Answer» D. 1’ 2 3 4 6 7 8 9 10 11 11’ and 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’
141.

What will be the input set for clipping left and clipping right respectively?

A. 1 2 3 4 6 7 8 9 10 11 and 1’ 2 3 4 6 7 8 9 10 11 11’
B. 1 2 3 4 6 7 8 9 10 11 and 1’2 3 4 5’ 6’ 7 8 9 10 11 11’
C. 1’ 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
D. 1 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
Answer» A. 1 2 3 4 6 7 8 9 10 11 and 1’ 2 3 4 6 7 8 9 10 11 11’
142.

In 8 connected region if one pixel is (x,y) then remaining neighboring pixels

A. (x+1, y ) (x-1,y) (x,y+1) (x,y-1) (x-1,y-1) (x-1, y+1) (x+1, y-1) (x+1, y+1)
B. (x+1, y ) (x-1,y) (x,y+1) (x,y) (x-1,y-1) (x-1, y+1) (x+1, y-1) (x+1, y+1)
C. (x-1,y-1) (x-1, y+1) (x+1, y-1) (x+1, y+1)
D. (x+1, y ) (x-1,y) (x,y+1) (x,y-1) (x-1,y-1)
Answer» A. (x+1, y ) (x-1,y) (x,y+1) (x,y-1) (x-1,y-1) (x-1, y+1) (x+1, y-1) (x+1, y+1)
143.

What will be input set to clipping top and clipping bottom respectively?

A. 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’ and 3’ 4’ 4 5’ 6’ 7 8 9 10 11 11’ 1’ 2
B. 1 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
C. 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
D. 1 1’ 2 3 4 6 7 8 9 10 11 11’ and 3’ 4’ 4 5’ 6’ 7 8 9 10 11 11’ 1’ 2
Answer» A. 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’ and 3’ 4’ 4 5’ 6’ 7 8 9 10 11 11’ 1’ 2
144.

What will be clipped polygon vertices?

A. 4’ 4 ‘5’ 6’ 7 7’ 8’ 9 9’ 10’ 11 11’ 1’ 2 3’
B. 1’2 3’ 4’4 5’6’ 7 7’8’ 9’ 10’ 11 11’
C. both a and b
D. neither a or b
Answer» C. both a and b
145.

What will be the input set for clipping right and for clipping top respectively?

A. 1’ 2 3 4 6 7 8 9 10 11 11’ and 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’
B. 1 2 3 4 6 7 8 9 10 11 11’ and 1’2 3 4 5’ 6’ 7 8 9 10 11 11’
C. 1’ 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
D. 1 2 3 4 6 7 8 9 10 11 11’ and 1 1’ 2 3 4 6 7 8 9 10 11 11’
Answer» A. 1’ 2 3 4 6 7 8 9 10 11 11’ and 2 3 4 5’ 6’ 7 8 9 10 11 11’ 1’
146.

Following are coordinates of clipping window : Lower Left Corner (10,10) and Upper Right Corner (1,1). Whether a point at (5,50) is visible or not?

A. visible
B. partially visible
C. completely exterior
D. none of the above
Answer» C. completely exterior
147.

Following are coordinates of clipping window : Lower Left Corner (10,10) and Upper Right Corner (1,1). Whether a point at (75,90) is visible or not?

A. visible
B. partially visible
C. completely exterior
D. none of the above
Answer» A. visible
148.

Following are coordinates of clipping window : Lower Left Corner (10,10) and Upper Right Corner (1,1). What is the outcode of point (150,50)?

A. 10
B. 10
C. 1
D. 110
Answer» A. 10
149.

Following are coordinates of clipping window : Lower Left Corner (20,20) and Upper Right Corner (200,200). What is the outcode of point (75,250)?

A. 110
B. 1
C. 0
D. 10
Answer» D. 10
150.

Following are coordinates of clipping window : Lower Left Corner (20,20) and Upper Right Corner (200,200). A line has end coordinates as (5,50) and (75,90). What will be the outcodes associated with line segment?

A. 0110, 0000
B. 0001, 0000
C. 0000, 0010
D. 0000,10
Answer» B. 0001, 0000

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