Computer Graphics - Graphics Concepts

1:  
The phenomenon of having a continuous glow of a beam on the screen even after it is removed is called as
A.

fluorescence

B.

 persistence 

C.

 phosphorescence 

D.

 incandescence

 
 

Option: B

Explanation :

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rajanandan said: (1:01pm on Tuesday 26th May 2015)
the correct answer is : Persistence
Taiwo Idowu said: (9:37pm on Sunday 19th February 2017)
There is a phosphate powder inside the vacuum tube and it allows the electron gun to redraw the image in pixels
prakash parmar said: (8:17pm on Wednesday 10th January 2018)
correct answer persistence
suruchi said: (1:08am on Saturday 19th May 2018)
correct answer is persistence

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2:  
All the following hidden surface algorithms employ image space approach except
A.
 back face removal 
B.
depth buffer method
C.

scan line method 

D.

depth sort method

 
 

Option: A

Explanation :

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3:  
The best hidden surface removal methodes) used for complex scenes with more than a few thousand surfaces is/are
A.
 depth sorting method
B.

octree method

C.
scan line algorithm
D.

Both (c) & (d)

 
 

Option: D

Explanation :

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4:  
The anti-aliasing technique which allows shift of 114, 112 and 3/4 of a pixel diameter enabling a closer path of a line is
A.
 pixel phasing 
B.
 filtering
C.

intensity compensation 

D.

sampling technique

 
 

Option: A

Explanation :

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5:  
The subcategories of orthographic projection are
A.
 cavalier, cabinet, isometric
B.
cavalier, cabinet
C.

 isometric, dimetric, trimetric 

D.

 isometric, cavalier, trimetric

 
 

Option: C

Explanation :

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Syllabus Covered in this section is -

  • Display systems
  • Input devices
  • 2D Geometry
  • Graphic operations
  • 3D Graphics
  • Animation
  • Graphic standard
  • Applications. Concepts
  • Storage Devices
  • Input Tools
  • Authoring Tools.
  • Graphics Application
  • Files and Operations

This Section covers Multiple Choice Questions Answers in Computer Graphics .

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