Download GTU BE/B.Tech 2019 Winter 4th Sem New 2142306 Manufacturing Of Plastics Material 2 Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 4th Sem New 2142306 Manufacturing Of Plastics Material 2 Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2142306 Date: 12/12/2019

Subject Name: Manufacturing of plastics Material-2

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Draw the structures of: PS, PVC and PTFE. 03
(b) Differentiate between Thermoplastic and Thermoset. 04
(c) Give difference between addition and condensation polymerization. 07

Q.2 (a) Draw the structure of ABS and give its applications. 03
(b) Write a note on: Bulk polymerization technique. 04
(c) Explain the manufacturing of Polystyrene (PS) by the tower process
with neat diagram.
07
OR
(c)
Discuss: Distillation, Absorption and Extraction.
07
Q.3 (a) Draw layout and arrangement of polymer plant. 03
(b) Give properties and applications of PVC. 04
(c) How Nylon-6 is manufactured? Discuss with neat diagram. 07
OR
Q.3 (a) Give structures of Isotactic, Syndiotactic and Atactic PP. 03
(b) List various properties and applications of Nylon-66. 04
(c) Explain suspension polymerization technique to manufacture
Polyvinyl chloride (PVC).
07
Q.4 (a) What are commodity and engineering plastics? Give their examples. 03
(b) List properties and application of PTFE. 04
(c) Give structure of PET and explain manufacturing process of PET. 07
OR
Q.4 (a) Give properties and application of Polycarbonate (PC). 03
(b) Draw structure of Polyacetal. Give its properties and applications. 04
(c) Draw flow diagram to manufacture Polypropylene (PP) and explain. 07
Q.5 (a) List properties and application of PPS. 03
(b) Give full form of PEEK. List the properties and applications of PEEK. 04
(c) With neat diagram explain manufacturing of High Density
Polyethylene (HDPE).
07
OR

Q.5 (a) Discuss Suspension Polymerization Technique. 03
(b) Compare the structure and properties of LDPE, LLDPE and HDPE. 04
(c) Explain manufacturing process for Polycarbonate (PC). 07
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