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

FirstRanker.com

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- IV (New) EXAMINATION - WINTER 2019

--- Content provided by⁠ FirstRanker.com ---

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.

--- Content provided by‍ FirstRanker.com ---

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

--- Content provided by FirstRanker.com ---

(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

--- Content provided by‌ FirstRanker.com ---

(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

--- Content provided by‌ FirstRanker.com ---

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

--- Content provided by‍ FirstRanker.com ---

(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

--- Content provided by FirstRanker.com ---

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

--- Content provided by⁠ FirstRanker.com ---

(b) Compare the structure and properties of LDPE, LLDPE and HDPE. 04
(c) Explain manufacturing process for Polycarbonate (PC). 07

FirstRanker.com