1. The ___tests are performed for the midpoints between pixels near the circle path at each sampling step.
- Parabola function
- Eclipse function
- Circle function ✔
- Line function
2. A ___ is the set of all points (x, y) that are the same distance from the directrix and focus not on the directrix.
- Circle
- Hyperbola
- Parabola ✔
- Ellipse
3. Both Boundary Filling and Flood filling algorithms are non-recursive techniques.
- True
- False ✔
4. In ___ algorithm(s), old color must be read before it is invoked.
- Scan line filling
- Flood filling ✔
- Both Scan line and flood filling
- Scan filling
5. Both Boundary Filling and Flood filling algorithms are ___ as compared to scan line filling algorithm.
- Better ✔
- Worse
- Almost same
- Good
6. ___ is used for the circumference of a circle.
- 2r
- 2𝜋c
- 2𝜋
- None ✔
7. If a line connecting any two points within a polygon does not intersect any edge, then it will be a ___
- Convex ✔
- Concave
- Complex
- Concave and Complex
8. ___ is the set of points that are equidistant from its origin.
- Line
- Parabola
- Circle ✔
- Ellipse
9. We can draw the circle using ___
- Pentane
- Hexanes
- Trident
- Octants ✔
10. Parity is a concept used to determine which ___ lie within a polygon.
- Edge
- Vertices
- Pixels ✔
- Points
- True ✔
- False
12. A two-dimensional rotation is applied to an object by repositioning it along a ___ path in the XY plane
- Straight
- Circular
- Oval
- Ellipse
13. In 2D transformation, ___ can be achieved by rotating the object about 180 degrees.
- Translation
- Scaling
- Shear
- Reflection ✔
14. The shortcoming of the Sutherland-Hodgeman Algorithm is concave polygons may be displayed with extensors lines.
- True ✔
- False
15. The process of subdivision an entity or surface into one or more non-overlapping primitives.
- Rendering ✔
- Modeling
- Meshing
- None
16. In Trivial acceptance/reject test there are four bits of nine regions, Bit2 represents condition ___
- Outside half plane of left edge, to the left of left edge X<Xmin
- Outside half plane of right edge, to the right of right edge X>Xmax
- Outside half plane of bottom edge, below bottom edge Y<Ymin ✔
- Outside half plane of top edge, above top edge Y>Ymax
17. In 2D transformation, two successive rotations can be performed in any order (rotation 1 then rotation 2 or rotation 2 then rotation 1)
- True ✔
- False
18. In Trivial acceptance/reject test there are four bits of nine regions, Bit4 represents condition ___
- Outside half plane of left edge, to the left of left edge X<Xmin ✔
- Outside half plane of right edge, to the right of right edge X>Xmax
- Outside half plane of bottom edge, below bottom edge Y<Ymin
- Outside half plane of top edge, above top edge Y>Ymax
19. ___ is the process of describing an object or scene so that we can construct an image of it.
- Rendering
- Modeling ✔
- Meshing
- None
20. Sutherland-Hodgeman clipping algorithm clips any polygon against a concave clip polygon
- True
- False ✔
