Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 4th Sem New 2142301 Basic Plastic Processing And Thermal Engineering Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2142301 Date: 07/12/2019
Subject Name: Basic Plastic Processing and Thermal Engineering
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) Explain the Polymer processing with classification for thermoplastic
and thermoset material.
03
(b) Discuss the Polymer melt flow behavior in processing of plastic
material.
04
(c) Define the consideration for selection of particular method of
processing.
.
07
Q.2 (a) Describe the Bulk factor with its significance. 03
(b) List out the steps involved in compression molding process and
machine specifications.
04
(c) Explain Intermittent Extrusion Blow molding process in detail with
neat sketch.
07
OR
(c) Write the compression molding defects with causes and remedies. 07
Q.3 (a) Comparison between Transfer molding with Compression molding. 03
(b) Differentiate between the Extrusion blow molding and Injection blow
molding process.
04
(c) Write the Transfer Molding process defects with causes and remedies. 07
OR
Q.3 (a) What are the Raw material criteria for roto molding process? Explain
its advantages and limitations.
03
(b) Explain the Melt stability and Plastic memory of material for
thermoforming process.
04
(c) Describe the types of molds used for transfer molding process with
neat sketch.
07
Q.4 (a) State the differences between Vacuum and Pressure forming
technique.
03
(b) Explain Stretch blow molding with advantages and Limitations. 04
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? IV (New) EXAMINATION ? WINTER 2019
Subject Code: 2142301 Date: 07/12/2019
Subject Name: Basic Plastic Processing and Thermal Engineering
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) Explain the Polymer processing with classification for thermoplastic
and thermoset material.
03
(b) Discuss the Polymer melt flow behavior in processing of plastic
material.
04
(c) Define the consideration for selection of particular method of
processing.
.
07
Q.2 (a) Describe the Bulk factor with its significance. 03
(b) List out the steps involved in compression molding process and
machine specifications.
04
(c) Explain Intermittent Extrusion Blow molding process in detail with
neat sketch.
07
OR
(c) Write the compression molding defects with causes and remedies. 07
Q.3 (a) Comparison between Transfer molding with Compression molding. 03
(b) Differentiate between the Extrusion blow molding and Injection blow
molding process.
04
(c) Write the Transfer Molding process defects with causes and remedies. 07
OR
Q.3 (a) What are the Raw material criteria for roto molding process? Explain
its advantages and limitations.
03
(b) Explain the Melt stability and Plastic memory of material for
thermoforming process.
04
(c) Describe the types of molds used for transfer molding process with
neat sketch.
07
Q.4 (a) State the differences between Vacuum and Pressure forming
technique.
03
(b) Explain Stretch blow molding with advantages and Limitations. 04
2
(c) Define the Parison programming with neat diagram, advantages and
disadvantages.
07
OR
Q.4 (a) Explain the Gel time and its importance for Thermoset material
processing.
03
(b) Describe the Flash type mold with advantages and limitations. 04
(c) What are the types of machine used for roto molding and explain in
detail the Shuttle type machine with advantages and limitations.
07
Q.5 (a) Explain the modes of heat transfer in details. 03
(b) Write in detail about finned tube heat exchanger. 04
(c) What are the different applications of heat transfer principles in
plastics industries?
07
OR
Q.5 (a) Explain the Law of heat transfer in details. 03
(b) Define the over all heat transfer coefficient. 04
(c) Give the detailed note on shell and tube heat exchanger with
advantages and disadvantages.
07
*************
FirstRanker.com - FirstRanker's Choice
This post was last modified on 20 February 2020