Computer Graphics Basics Questions

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71.

A scaling transformation changes the__of an object?

A

size

B

location

C

shape

D

both a and b

Correct Answer: A

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72.

Given matrix 1000000yxSSS represents the?

A

Homogeneous Coordinates for rotation

B

Homogeneous Coordinates for translation

C

Homogeneous Coordinates for Scaling

D

Homogeneous Coordinates for both rotation and scaling

Correct Answer: C

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73.

In two dimensional viewing we have?

A

3D window and 2D viewport 

B

3D window and 3D viewport

C

2D window and 2D viewport

D

2D window and 2D viewport

Correct Answer: A

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74.

The first viewing parameter we must consider is the?

A

viewing window

B

shift vector

C

view reference point

D

view reference plane

Correct Answer: C

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75.

the line segment from the view plane to the view reference point is called?

A

view-distance

B

Projection distance

C

view-path

D

both a and b

Correct Answer: A

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76.

In perspective projection, the lines of projection are not parallel. Instead, they all coverage at a single point called?

A

Center of projection

B

projection reference point

C

center of projection or projection reference point

D

interaction point

Correct Answer: C

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77.

when the projection is obtained by projecting points along parallel lines that are not perpendicular to the projection plane is called?

A

isometric projection

B

perspective projection

C

oblique projection

D

cavalier projection

Correct Answer: C

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78.

The transformation that produces a mirror image of an object relative to an axis is called?

A

rotation

B

translation

C

reflection

D

both a and b

Correct Answer: C

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79.

A transformation that slants the shape of objects is called the?

A

shear transformation

B

translation

C

reflection

D

both a and b

Correct Answer: A

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80.

Sometimes it may require undoing the applied transformation, In such a case which of the following transformation will be used?

A

shear transformation

B

translation

C

reflection

D

inverse transformation

Correct Answer: D

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