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Computer Graphics Technology Question Paper
Computer Graphics Technology
Course:Certificate In Information Technology
Institution: Africa Nazarene University question papers
Exam Year:2017
QUESTION 1
a)In hidden surface removal in computer graphics , what is z-fighting? Explain why it arises. (5 marks)
b)In animation, what is a key frame? Describe how they are used. (5 marks)
c)What is Computer Graphics( 2 marks)
d)Explain the benefits of LCD display (4 marks)
e)What are the uses of transformation in computer graphics? (4 marks)
f)Explain the applications of computer graphics (5 marks)
g)Describe RGB relation to computer graphics (5 marks)
QUESTION TWO
a)Explain the three ways of looking at color (6 marks)
b)List various output devices used in computers (2 marks)
c)Describe the following terms as used in this unit (3 marks)
a)animation b)Ray tracing
d)Describe the characteristics of rigid body transformation (4 marks)
QUESTION THREE
a)Explain the steps involved in 3D transformation.(4 marks)
b)Which major components (hardware and software)are needed for computer graphics (4 marks)
c)Define the following terms as used in this unit; (5 marks)
1)Resolution
2)Persistence
3)Response rate
4)Pixel
5)Transformation
d)Explain what clipping is in computer graphics (2 marks)
QUESTIION FOUR
a)What the difference between vector and raster graphics (4 marks)
b)What is the key limitation of gourmand shading 2 marks)
c)What is rigid body transform (1 mark)
d)What is the difference between supper sampling and multisampling? 4 marks)
e)Define the following terms as used in this unit 2 marks)
Picket fencing Rendering
f)Differentiate between parallel projection and perspective projection (2marks)
QUESTION FIVE
a)Differentiate between aliasing effect and anti-aliasing effect.(4 marks)
b)Differentiate between the following terms (6 marks)
Ambient Diffuse specular Specular
c)State two types of oblique projection (2 marks)
d)Highlight three advantages of CRT monitor (3marks)
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