CAD-CAM and Automation MCQs with answers Page - 2

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Q. We can combine the multiplicative and translational terms for 2D into a single matrix representation by expanding

  • (A) 2 x 2 matrix into 4x4 matrix
  • (B) 3 x 3 matrix into 2 x 2
  • (C) 2 x 2 matrix into 3 x 3
  • (D) Only c

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Q. The general homogeneous coordinate representation can also be written as

  • (A) (h.x, h.y, h.z)
  • (B) (h.x, h.y, h)
  • (C) (x, y, h.z)
  • (D) (x,y,z)

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Q. In homogeneous coordinates value of ‘h’ is consider as 1 & it is called…..

  • (A) Magnitude Vector
  • (B) Unit Vector
  • (C) Non-Zero Vector
  • (D) Non-Zero Scalar Factor

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Q. Which co-ordinates allow common vector operations such as translation, rotation, scaling and perspective projection to be represented as a matrix by which the vector is multiplied?

  • (A) vector co-ordinates
  • (B) 3D co-ordinates
  • (C) affine co-ordinates
  • (D) homogenous co-ordinates

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Q. In Coordinates, a points in n-dimensional space is represent by (n+1) coordinates.

  • (A) Scaling
  • (B) Homogeneous
  • (C) Inverse transformation
  • (D) 3D Transformation

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Q. A translation is applied to an object by D

  • (A) Repositioning it along with straight line path
  • (B) Repositioning it along with circular path
  • (C) Only b
  • (D) All of the mentioned

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Q. We translate a two-dimensional point by adding

  • (A) Translation distances
  • (B) Translation difference
  • (C) X and Y
  • (D) Only a

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Q. The translation distances (dx, dy) is called as

  • (A) Translation vector
  • (B) Shift vector
  • (C) Both a and b
  • (D) Neither a nor b

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Q. In 2D-translation, a point (x, y) can move to the new position (x’, y’) by using the equation

  • (A) x’=x+dx and y’=y+dx
  • (B) x’=x+dx and y’=y+dy
  • (C) X’=x+dy and Y’=y+dx
  • (D) X’=x-dx and y’=y-dy

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Q. The two-dimensional translation equation in the matrix form is

  • (A) P’=P+T
  • (B) P’=P-T
  • (C) P’=P*T
  • (D) P’=P

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