Question Paper: CAD CAM CAE Question Paper - Dec 18 - Mechanical Engineering (Semester 7) - Mumbai University (MU)
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## CAD CAM CAE - Dec 18

### Mechanical Engineering (Semester 7)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

1.a. Explain Cohen-Sutherland Line clipping algorithm
(5 marks) 00

1.b. Explain the roughing and finishing canned cycle for turning
(5 marks) 00

1.c. Explain rotation with respect to 3D transformation.
(5 marks) 00

1.d. Explain the significance of rapid prototyping.
(5 marks) 00

2.a. Plot the beizer curve having end points P0(1,1) and P3(3,1). the other control points are P1(2,1) and P2(4,3). Also find the midpoint of the curve
(10 marks) 00

2.b. Explain Feature based Modelling
(10 marks) 00

3.a. Describe the transformation MK of a object about a link K which makes an angle $\phi$ with x-axis. It has slope m and y intercepts as (0,C) with y - axis as shown in figure.

(10 marks) 00

3.b. Explain Direct Numerical Control (DNC)
(10 marks) 00

4.a. What is the need for concatenation of transformation? Explain with example why the homogeneous co-ordinate system is generally used in graphics, in particular for software implementation.
(10 marks) 00

4.b. Explain the procedure of kinematic analysis of a structural system with an example.
(10 marks) 00

5.a. Write a part program in APT for the component shown in figure using end mill cutter of 20 mm diameter. Clearly show the axes system chosen with a sketch and the direction of the cutter for the motion statements.

(10 marks) 00

5.b. Socio-techno-economic aspects of CIM.
(10 marks) 00

Write a short note on any FOUR

6.a. Use of CAE in Engineering analysis
(5 marks) 00

6.b. Constructive solid geometry and Boundary representation
(5 marks) 00

6.c. Automated Storage/ Retrieval System(AS/RS)
(5 marks) 00

6.d. 3D Printing
(5 marks) 00

6.e. APT Statements
(5 marks) 00