1. A translation is applied to an object by

a) Repositioning it along with straight line path

b) Repositioning it along with circular path

c) Only b

d) All of the mentioned

View Answer

Explanation: A translation is applied to an object by repositioning it along with straight line path from one location to another.

2. We translate a two-dimensional point by adding

a) Translation distances

b) Translation difference

c) X and Y

d) Only a

View Answer

Explanation: We can translate 2D point by adding translation distances dx and dy.

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

a) Translation vector

b) Shift vector

c) Both a and b

d) Neither a nor b

View Answer

Explanation: The translation distances (dx, dy) from its original position is called as translation vector or shift vector.

4. 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

View Answer

Explanation: By adding translation distance dx and dy to its originsl position (x, y) we can obtain a new position (x’, y’).

5.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

View Answer

Explanation: The 2D translation equation is P’=P+T.

6. _________ is a rigid body transformation that moves objects without deformation.

a) Rotation

b) Scaling

c) Translation

d) All of the mentioned

View Answer

Explanation: Translation a rigid body transformation that moves objects without deformation.

7. A straight line segment is translated by applying the transformation equation

a) P’=P+T

b) Dx and Dy

c) P’=P+P

d) Only c

View Answer

Explanation: A straight line segment is translated by applying the transformation equation P’=P+T to each of line endpoints.

8. Polygons are translated by adding __________ to the coordinate position of each vertex and the current attribute setting.

a) Straight line path

b) Translation vector

c) Differences

d) Only b

View Answer

Explanation: None.

9. To change the position of a circle or ellipse we translate

a) Center coordinates

b) Center coordinates and redraw the figure in new location

c) Outline coordinates

d) All of the mentioned

View Answer

Explanation: By translating the center coordinates and redraw the figure in new location we can change the position of a circle or ellipse.

10.The basic geometric transformations are

a) Translation

b) Rotation

c) Scaling

d) All of the mentioned

View Answer

Explanation: These are the basic geometric transformations and other transformations are reflection and shear.

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