Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 6th Sem New 2162006 Computer Aided Design For Mechatronics Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2162006 Date:18/05/2019
Subject Name:Computer Aided Design for Mechatronics
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) What do you mean by CAD/CAM? State limitations of it. 03
(b) Draw the product Cycle with CAD/ CAM. 04
(c) What is Computer Graphics? Give benefits & general application of it. 07
Q.2 (a) Explain the Working of Digitizers & Laser Printers. 03
(b) Compare between vector display & Raster Display. 04
(c) Explain Brensham?s Algorithm for generation of Circles & also write down
advantages of it.
07
OR
(c) What is Graphic Standards? Enlist them. Explain any one of them in brief. 07
Q.3 (a) Differentiate between B-rep & CSG. 03
(b) Identify the pixel location that will be chosen by the DDA algorithm while
scan converting a line from screen co-ordinate (10, 30) to (19, 36).
04
(c) A rectangle is formed by four points whose coordinates are: (50, 50), B
(100,100), C (100, 80) & D (50, 80). Determine the coordinate?s 0of four
points for new rectangle in reduced size using the scaling factors 0.5 & 0.6
along X & Y direction respectively.
07
OR
Q.3 (a) Define following terms: i) Inverse Transformation
ii) Homogeneous co-ordinate system
03
(b) Comparision between IGES & PDES. 04
(c) A Triangle PQR with vertices P (20, 20), Q (50, 20) & (20,140) isto be
enlarged twice along X direction & compressed to half along Y direction.
Determine the coordinates of the vertices for a scaled triangle.
07
Q-4 (a) Explain following Entities used in surface Modeling
i) Ruled Surface ii) Plain Surface.
03
(b) What is Feature based Modeling? Explain in detail. 04
(c) The co-ordinates of four control points P0, P1, P2, & P3, relative to WCS
are : (2,2,0), (3,3,0) ,(3,4,0), & (4,3,0)respecttively . Find the equation of
the Bezier curve & determine the coordinates of points on curve for u =0,
0.25, 0.5, 0.75, 1.0.
07
OR
Q-4 (a) Explain the approaches of genration of analytical curve. 03
(b) Develop parametric equation for i) Line ii) Elipse. 04
(c) A Bezier curve is controlled by three points (4, 2), (0, 0) & (2, 8). Determine
i) the degree of Bezier curve. ii) The parametric eqation of Bezier curve.
07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2162006 Date:18/05/2019
Subject Name:Computer Aided Design for Mechatronics
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) What do you mean by CAD/CAM? State limitations of it. 03
(b) Draw the product Cycle with CAD/ CAM. 04
(c) What is Computer Graphics? Give benefits & general application of it. 07
Q.2 (a) Explain the Working of Digitizers & Laser Printers. 03
(b) Compare between vector display & Raster Display. 04
(c) Explain Brensham?s Algorithm for generation of Circles & also write down
advantages of it.
07
OR
(c) What is Graphic Standards? Enlist them. Explain any one of them in brief. 07
Q.3 (a) Differentiate between B-rep & CSG. 03
(b) Identify the pixel location that will be chosen by the DDA algorithm while
scan converting a line from screen co-ordinate (10, 30) to (19, 36).
04
(c) A rectangle is formed by four points whose coordinates are: (50, 50), B
(100,100), C (100, 80) & D (50, 80). Determine the coordinate?s 0of four
points for new rectangle in reduced size using the scaling factors 0.5 & 0.6
along X & Y direction respectively.
07
OR
Q.3 (a) Define following terms: i) Inverse Transformation
ii) Homogeneous co-ordinate system
03
(b) Comparision between IGES & PDES. 04
(c) A Triangle PQR with vertices P (20, 20), Q (50, 20) & (20,140) isto be
enlarged twice along X direction & compressed to half along Y direction.
Determine the coordinates of the vertices for a scaled triangle.
07
Q-4 (a) Explain following Entities used in surface Modeling
i) Ruled Surface ii) Plain Surface.
03
(b) What is Feature based Modeling? Explain in detail. 04
(c) The co-ordinates of four control points P0, P1, P2, & P3, relative to WCS
are : (2,2,0), (3,3,0) ,(3,4,0), & (4,3,0)respecttively . Find the equation of
the Bezier curve & determine the coordinates of points on curve for u =0,
0.25, 0.5, 0.75, 1.0.
07
OR
Q-4 (a) Explain the approaches of genration of analytical curve. 03
(b) Develop parametric equation for i) Line ii) Elipse. 04
(c) A Bezier curve is controlled by three points (4, 2), (0, 0) & (2, 8). Determine
i) the degree of Bezier curve. ii) The parametric eqation of Bezier curve.
07
2
*************
Q-5 (a) What is Geometric Modeling? Explain Methods of Geometric Modeling. 03
(b) Explain advantages & characteristics of Bezier Curve. 04
(c) Explain Langranj Multiplier Method with suitable example. 07
OR
Q-5 (a) What do you mean by 2D & 3D wire frame Modeling? Differentiate them. 03
(b) Define Primary & Subsidiary equation in Optimizations. 04
(c) What is Design Optimization? Explain its application &limitations in
engineering design.
07
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This post was last modified on 20 February 2020