Download GTU BE/B.Tech 2017 Winter 3rd Sem Old 133405 Manufacturing And Assembly Drawing Question Paper

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Subject Code: 133405

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. (a) Define Tolerance, Unilateral Tolerance, and Bilateral Tolerance with suitable sketches. [07]
   

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   (b) What is a production drawing? Why production drawings must be prepared as per standard. [07]
2. (a) Name the different types of Rivet Heads. What is the function of a cover plate in riveted joints? [07]
   (b) Differentiate between lap joint and butt joint, Chain riveting and zigzag riveting. [07]
   OR
   (b) Explain about Hole basis system with the help of a suitable example. [07]

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3. (a) Draw the conventions for following machine elements: [07]
   1) Ratchet and pinion. ii) Holes on a linear pitch.
   iii) Helical Torsion Spring: iv) Disc spring stacked in parallel.
4. (b) Draw to 1:1 scale, the top view and sectional front view of a single riveted butt joint with double cover plates. The thickness of plates is 9 mm. Show at least three rivets in each row. Indicate all dimensions. Use snap head rivets. [14]
   OR
   

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   (a) Define the following: [07]
   i) Basic Size, ii) Actual Size, iii) Tolerance, iv) Deviation.
   (b) Define fit. Classify fits. Briefly explain about them. [07]
5. Fig.1 shows the detail drawing of the different parts of a Cotter Joint with Sleeve. Assemble all the parts and draw the front view in Section. [14]

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1. Details of a flanged coupling (Unprotected type) are shown in Fig. 2. Draw to 1:1 scale the front view with top half in section, showing all the parts assembled, with one of the shaft being projected by a distance of 5 mm into the bore of the other flange. [14]
2. Fig. 3 shows the assembly drawing of a petrol engine connecting rod. Prepare working drawings of CAP & Bearing Brass. [14]
   OR
   Draw the assembly drawing of a two plate injection mould (Two cavity) for a cup (PP material) of outside diameter 40 mm, total height of 20 mm and wall thickness 1.5 mm. Mention the BOM. [14]

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