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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–VI • EXAMINATION – SUMMER • 2014
Subject Code: 361901 Date: 22-05-2014
Subject Name: Computer Aided design and
Computer aided Manufacturing
Time: 10:30 am - 01:00 pm Total Marks: 70
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is considered to be Authentic.
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Q.1 (a) What is need and salient feature of CAD/CAM? 07
(b) What is meant by Graphic terminal? Differentiate between DVST terminal and Raster Scan terminals. 07
Q.2 (a) Explain parametric, non-parametric and feature based modeling 07
(b) Define transformation. Explain 2D translation with suitable example. 07
OR
(b) A quadrilateral ABCD has following coordinates A (1,1) ,B(6,1), C(10,5), D(5,5) . Calculate and show the new coordinates of the quadrilateral if it is translated by 10 units in x direction and 5 units in y direction. 07
Q.3 (a) Write down the AUTOCAD command in sequences for the Figure 1 07
(b) Discuss following AUTOCAD commands. (1) V port (2) 3D orbit (3) Rule Surf (4) Rev Surf 07
OR
Q.3 (a) Write complete procedure to draw 3D model for a given component in Fig. 2 07
(b) List various solid modeling software used in CAD and explain any one. 07
Q.4 (a) Differentiate open loop and closed loop in context with CNC machine. 07
(b) Prepare CNC part programming for turning using ISO codes of a component given in Figure 3. 07
OR
Q. 4 (a) Explain APT language used in computer assisted part programming. 07
(b) Prepare CNC part programming for milling using ISO codes of a component given in Figure 4 07
Q.5 (a) State the principal functions and application of DNC. 07
(b) Explain feature of FMS and list the main component of FMS. 07
OR
Q.5 (a) Give classification of robots and list type of robots. 07
(b) Explain area covered in CIM using block diagram. 07
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