F.Y. M.Tech. (Mechanical Design Engineering) (Semester (New CBCS)
Examination, 2018
computer aided design (Elective
Day and Date Wednesday, 12-12-2018 Max. Marks 70
Time 10.00 a.m. to 1.00 p.m.
Instructions Attempt any two questions from each Section.
Figures to the right indicate full marks.
Use of Scientific calculator is allowed.
Assume suitable data if necessary and mention it
clearly.
SECTION I
1. Explain with suitable figures star, bus and ring topology. 9
Explain various types of impact, non-impact and page printers. 9
2. A rectangle with co-ordinate A C and D is reflected
along line whose equation is y 2X and sheared by 2 unit in
X direction and 2 unit in y direction. Find new co-ordinates of the object. 10
Explain with suitable example the concept of concatenation transformations
used in computer graphics. 7
3. Perform a counter clockwise 30° rotation of triangle ABC with
B 3)and about vertex point A. 10
Show that 2 D rotation and uniform scaling are commutative. 7
SECTION II
4. Write short note on following 18
Types of simulation approaches
B-rep
Bezier curve.
5. Explain semi automatic and fully automatic methods used in mesh
generation. 8
Enlist difference between wire frame, surface and solid model. 9
6. Explain parametric representation of circle used in analytical curves. 7
Explain cell decomposition method used in solid model. 5
Explain axiometric projections. 5