This download link is referred from the post: SGBAU B.Pharm Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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Time : Three HoursB.Tech. Seventh Semester
11134 : Polymer Processing - I : PP 01
AW - 3383
Max. Marks : 80
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Notes:
- Answer three questions from Section A and three questions from Section B.
- Due credit will be given to neatness and adequate dimensions.
- Diagrams and chemical equations should be given wherever necessary.
- Discuss the reaction, mechanism wherever necessary.
- Illustrate your answer with the help of neat sketches.
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SECTION - A
- a) What do you mean by Injection molding? Explain with sketch, nomenclature of injection molding. (7)
b) Explain Injection molding cycle. (7)OR
- What is the principle of Injection molding? Explain in detail Injection and clamping unit of injection molding machine. (14)
- a) How will you judge the quality of injection molded product on the basis of appearance of product. (7)
b) Explain in detail feed system of I.M. machine. (6)OR
- a) Explain in detail injection molding of thermosetting materials. (7)
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b) What is the effect of material properties on the quality of injection molding articles. (6) - a) What do you mean by compression molding? Explain equipments used in compression molding. (7)
b) Explain compression molding cycle. (6)OR
- Explain in detail. (13)
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a) Radiofrequency preheater. b) SMC & DMC.
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SECTION - B
- a) What do you mean by transfer molding? Explain in detail plunger transfer molding. (7)
b) Compare compression molding with transfer molding. (7)OR
- a) Explain in detail feed system. (7)
b) Explain in detail different materials used in T.M. (7) - a) What do you mean by roto molding? Explain in detail different machines used in it. (7)
b) Explain in detail RIM. (6)OR
- Explain in detail (13)
i) Film casting. ii) Lamination & it's types. - a) What do you mean by recycling? Explain different types of recycling. (7)
b) Explain in detail biodegradation. (6)OR
- a) What do you mean by recycling? Explain methods of separation of plastics. (7)
b) Explain pyrolysis process. (6)
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This download link is referred from the post: SGBAU B.Pharm Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university