Hall Ticket No Question Paper Code: BCC001
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Regular) February, 2017
Regulation: IARE-R16
ADVANCED CAD
(CAD/CAM)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Summarize the following transformation Geometric models with mathematical representations.[14M]
i. Translation
ii. Scaling
2. Given a hermite cubic spline, show that its point wise translation and translating its geometric
representation are identical.
Rotate a triangle with verticies about the origin by 30 degrees and
translate it by tx=5,ty=10.
UNIT II
3. Find the equivalent bi-cubic formulation of a cubic Bezier surface patch
4. The non parametric implicit equation of a circle with centre at the origin and radius r is given
by x2 y2 r2.Generate the parametric equation.
Discuss the need for concatenation of transformation. Explain the necessary care to be taken.

UNIT III
5. Determine the minimum distance between a point in space and a plane surface.
Explain the concept of ruled surface.
6. Write short notes on Surface of revolution
Write short notes on Tabulated cylinder
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UNIT IV
7. What you mean by Blending surface? Explain.
Explain different types of surface manipulation techniques with neat sketches .
8. Write short notes on following
i. Segmentation
ii. Displaying
Differentiate between interpolation and approximate approaches used in design of surfaces.[7M]
UNIT V
9. Discuss the steps involved in finite element analysis.
Explain the importance of B-representation in construction of solid models.
10. Explain evolution of data exchange format.
Discuss CSG representation and its importance in solid modelling.
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