Computer Graphics D Translation and Scaling MCQ

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• If Scaling factor is lesser than 1 then the object size is increased.
  ক

  True

  খ

  False
• What will be the value of new co-ordinates if the old co-ordinates are (X0 = 2, Y0 = 0, Z0 = 4) and the scaling factor is (Sx = 2, Sy = 1, Sz = 3)?
  ক

  (X1 = 4, Y1 = 1, Z1 = 7)

  খ

  (X1 = 0, Y1 = -1, Z1 = 1)

  গ

  (X1 = 1, Y1 = 0, Z1 = 4/3)

  ঘ

  (X1 = 4, Y1 = 0, Z1 = 12)
• Which of the following operation can be applied on a 3 D object to zoom it in or out about any axis from its original position?
  ক

  Translation

  খ

  Scaling

  গ

  Rotation

  ঘ

  Shearing
• How many different types of translation are present in computer graphics?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• If the original point P = (5, 7, 3) and the translation factor, T = (-2, -1, 3), then what will be the value of the final point P1?
  ক

  P1 = (7, 8, 6)

  খ

  P1 = (3, 6, 0)

  গ

  P1 = (7, 8, 0)

  ঘ

  P1 = (3, 6, 6)
• In the equation x1 = dx + x; which part of the equation is called as the translation factor?
  ক

  x1

  খ

  dx

  গ

  x

  ঘ

  dx + x
• If a point (x, y, z) is to be translated by an amount dx, dy and dz respectively, then what will be the value of the new translated points (x1, y1, z1)?
  ক

  x1 = x y1 = y z1 = z

  খ

  x1 = dx y1 = dy z1 = dz

  গ

  x1 = x + dx y1 = y + dy z1 = z + dz

  ঘ

  x1 = x – dx y1 = y – dy z1 = z – dz
• Which of the following operation can be applied on a 3 D object to move it along any axis from its original position?
  ক

  Translation

  খ

  Scaling

  গ

  Rotation

  ঘ

  Shearing