GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Seat No.:
Subject Code: 2133405
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Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- III (New) EXAMINATION — WINTER 2019
Subject Name: Manufacturing and Assembly Drawing
Time: 02:30 PM TO 05:00 PM
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) Differentiate between Lap Joint and Butt Joint | 03 |
| (b) Differentiate between chain riveting and zig - zag riveting. | 04 | |
| (c) Draw the conventions for the following: i) Internal Thread ii) Chain Wheel iii) Conical Helical Spring with Rectangular section iv) Diamond Knurling v) Spiral Spring Unwound vi) Spur Gear vii) Leaf Spring with eye | 07 | |
| Q.2 | (a) What do you mean by Datum and Datum symbol. | 03 |
| (b) Explain briefly about Geometrical tolerances. | 04 | |
| (c) Differentiate between Hole basis and Shaft basis system. | 07 | |
| OR | ||
| (a) Define fits and classify them with neat sketches. | 07 | |
| Q.3 | (a) Write short notes on Aluminum and its alloys. | 03 |
| (b) Explain the types of tool steel grades. | 04 | |
| (c) Define Steel. Explain classification of steels | 07 | |
| OR | ||
| (a) Write short notes on copper and its alloys | 03 | |
| (b) List out the properties and applications of stainless steel. | 04 | |
| (c) Write the effects of adding alloying elements Cr, V, Mo & W to steels | 07 | |
| Q.4 | (a) What is the importance of surface roughness? | 03 |
| (b) What are the different types of production drawing? Explain | 04 | |
| (c) Interpret the production drawing shown in figl. | 07 | |
| OR | ||
| (a) Define Production drawing of a component. What is the importance of Production drawing? | 03 | |
| (b) Sketch the symbols related to the common direction of lay. | 04 | |
| (c) Prepare the production drawing of the component ‘Crank’ from the fig 2 | 07 | |
| Q.5 | (a) Explain Bill of Materials. | 03 |
| (b) Figure out any eight GD & T symbols | 04 | |
| (c) Assemble the following parts of a given Plummer block of fig.3 | 07 | |
| OR | ||
| (a) What is an injection mould? | 03 | |
| (b) List out the standard parts of an Injection mould | 04 | |
| (c) Draw hand injection mould for a cup outside diameter 40 mm, overall height Smm and wall thickness of 1.2 mm. | 07 | |
Date: 5/12/2019
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Total Marks: 70
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