Computer Aided Design (3161903) MCQs

MCQs of Geometric Transformations

Showing 31 to 40 out of 41 Questions
31.
If the center of projection is at a finite distance from the plane, ____________ results.
(a) perspective projection
(b) parallel projection
(c) orthographic projection
(d) all of the above
Answer:

Option (a)

32.
____________ does not preserve parallelism.
(a) Parallel projection
(b) Perspective projection
(c) Orthographic projection
(d) None of the above
Answer:

Option (b)

33.
In perspective projection, the size of an entity is _______ proportional to its distance from the center of projection.
(a) inversely
(b) directly
(c) either inversely or directly
(d) neither inversely nor directly
Answer:

Option (a)

34.
In order to define perspective projection, ______________ is required.
(a) a center of projection
(b) a projection plane
(c) a center of projection and a projection plane
(d) none of the above
Answer:

Option (c)

35.
The transformation of perspective projection must include__________, where d is the distance between the center of projection to the projection plane.
(a) d
(b) 1/d
(c) -d
(d) -1/d
Answer:

Option (d)

36.
How many total numbers of projecting planes are required for the complete description of the orthographic projection system?
(a) 2
(b) 4
(c) 6
(d) 8
Answer:

Option (c)

37.
A world-coordinate area selected for display is called a _________.
(a) window
(b) monitor
(c) screen
(d) none of the above
Answer:

Option (a)

38.
An area on a display device to which a window is mapped is called a __________.
(a) window
(b) viewport
(c) pixel
(d) none of the above
Answer:

Option (b)

39.
Generally, windows and viewports are _______ in the standard position.
(a) rectangles
(b) circles
(c) polygons
(d) none of the above
Answer:

Option (a)

40.
A rectangle is to be rotated by 30° clockwise about an arbitrary point. From the following, which transformation will be performed first?
(a) Translation
(b) Scaling
(c) Clockwise rotation
(d) Counter clockwise rotation
Answer:

Option (a)

Showing 31 to 40 out of 41 Questions