Savitribai Phule Pune University
S.E. (Mechanical, Automobile, Automation & Robotics) (Semester I)
SOLUTION INSEM EXAMINATION – Oct 2024 (202042)
Solid Modeling & Drafting (2019 Pattern)
Insem Paper Solution
Qu1 a Explain any four from following software modules of CAD, 8
i) Collaboration module ii) Operating system module iii) Geometric module
iv) Applications module v) Programming module vi) Communication
module
Ans - Explanation - 08 Marks (02 Marks for each category)
b What is Product Life Cycle? Explain various steps involved in Engineering 7
Design process?
Ans - Explanation - 03 Marks, Steps - 04 Marks
Qu2 a Explain the concept of Primitives, Features and Sketching in detail. 6
Ans - Explanation - 06 Marks (02 Marks for each category)
b Compare Wireframe, Solid and Surface Modeling with suitable example. 9
Ans - Correct 03 differences - 09 Marks (03 Marks for each category/
parameter)
Qu3 a Explain Zero Order, First Order and Second Order continuities with a neat 6
sketch.
Ans – Correct answer – 01 Mark each category, Correct sketch – 01 Mark
each category
b A line is represented by end points P (5, 7, 2) and Q (- 4, 6, 3). If ‘u’ at P and Q 9
is 0 and 1 respectively, determine its length. Also determine the co-ordinates of
points represented by u = 0.4, u= 0.25 and u = 0.5.
Ans –
1
Qu4 a Describe the Reverse Engineering Process with its important stages and 7
applications.
Ans - Explanation - 03 Marks, Stages- 03 Marks, Applications- 01 Marks
b Explain Bezier surface and B-Spline surface with suitable sketches. 8
Ans - Explanation - 06 Marks, (03 Marks for each category), Sketch - 01
Marks each category
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