Cgm Quiz 3D Cse A

10 Questions | Total Attempts: 71

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Cgm Quiz 3D Cse A - Quiz


Questions and Answers
  • 1. 
    The transformation in which an object can be shifted to any coordinate position in the three-dimensional plane is called  
    • A. 

      Rotation

    • B. 

      Translation

    • C. 

      All of the options

    • D. 

      Scaling

  • 2. 
    The transformation in which the size of an object can be modified in x-direction ,y-direction and z-direction  
    • A. 

      Translation

    • B. 

      Scaling

    • C. 

      Rotation

    • D. 

      Shear

  • 3. 
    If the 3-D rotation is applied to an object about x-axis, which plane will refer as plane of rotation
    • A. 

      X-Y Plane

    • B. 

      Z-X Plane

    • C. 

      Y-Z Plane

    • D. 

      None of the options

  • 4. 
    Apply 3-D rotation over a triangle ABC with vertices A(1,1,1), B (1,1,6), C(3,1,0) about z-axis through 90 degrees and calculate the new coordinates of the triangle ABC after rotation.
    • A. 

      A(-1,1,-1) B(-1,1,6) c(-1,3,0)

    • B. 

      A(-1,-1,1) B(-1,1,6) c(-1,3,0)

    • C. 

      A(-1,1,1) B(-1,1,6) c(-1,3,0)

    • D. 

      A(-1,1,1) B(-1,-1,6) c(-1,3,0)

  • 5. 
    The method which is based on the principle of checking the visibility point at each pixel position on the projection plane is called  
    • A. 

      Object-space method

    • B. 

      ​​​​​​​Image-space method

    • C. 

      Both Image & Space

    • D. 

      None of these

  • 6. 
    The point, from which the observer is assumed to view the object, is called  
    • A. 

      Center of projection

    • B. 

      Point of projection

    • C. 

      Point of observer

    • D. 

      View point

  • 7. 
    Orthographic projection is also known as  
    • A. 

      Single view projection

    • B. 

      Two view projection

    • C. 

      Multi view projection

    • D. 

      All of the options are correct

  • 8. 
    The orthographic projection, projection lines are ____ to each other.  
    • A. 

      Parallel

    • B. 

      Perpendicular

    • C. 

      Inclined

    • D. 

      Any of the options

  • 9. 
    If background intensity of a scene is constant with a value 255(white) having two objects, where the first object has a point A(2,2,2) with intensity 128 and the second object has another point B(2,2,4) with intensity 100 overlap each other on 2D plane, the intensity of the location will be 
    • A. 

      255

    • B. 

      128

    • C. 

      100

    • D. 

      None

  • 10. 
    Why we need removal of hidden surface  
    • A. 

      ​​​​​​​for displaying realistic view

    • B. 

      For determining the closest visible surface

    • C. 

      Both realistic view and closest visible surface

    • D. 

      None of these

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