2D Transformation Questions

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11.

A two dimensional rotation 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

Any of the mentioned

Correct Answer: C

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12.

To generate a rotation , we must specify

A

Rotation angle ?

B

Distances dx and dy

C

Rotation distance

D

All of the mentioned

Correct Answer: A

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13.

Positive values for the rotation angle ? defines

A

Counterclockwise rotations about the end points

B

Counterclockwise translation about the pivot point

C

Counterclockwise rotations about the pivot point

D

Negative direction

Correct Answer: C

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14.

The rotation axis that is perpendicular to the xy plane and passes through the pivot point is known as

A

Rotation

B

Translation

C

Scaling

D

Shearing

Correct Answer: A

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15.

The original coordinates of the point in polor coordinates are

A

X

B

X

C

X

D

X

Correct Answer: B

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16.

The two-dimensional rotation equation in the matrix form is

A

P

B

P

C

P

D

P

Correct Answer: B

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17.

________ is the rigid body transformation that moves object without deformation.

A

Translation

B

Scaling

C

Rotation

D

Shearing

Correct Answer: C

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18.

An ellipse can also be rotated about its center coordinates by rotating

A

End points

B

Major and minor axes

C

Only a

D

None

Correct Answer: B

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19.

The transformation that is used to alter the size of an object is

A

Scaling

B

Rotation

C

Translation

D

Reflection

Correct Answer: A

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20.

The two-dimensional scaling equation in the matrix form is

A

P

B

P

C

P

D

P

Correct Answer: B

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