Download GTU B.Tech 2020 Winter 5th Sem 3152303 Plastic Recycling And Waste Management Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 5th Sem 3152303 Plastic Recycling And Waste Management Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?V (NEW) EXAMINATION ? WINTER 2020
Subject Code:3152303 Date:01/02/2021
Subject Name:Plastic Recycling & Waste Management
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.



MARKS
Q.1 (a) Define and explain in short about (i) Post consumer plastics
3
waste(ii) Thermoplastics andThermoset plastics (iii)Scrape
plastic.

(b) Discus the flow of plastic waste .
4

(c) Explain the generation of industrial plastic waste and concept
7
of 4R.
Q.2 (a) Write the recycling codes for various plastics .
3

(b) Explain Separation of plastics from Plastic-coated fabric.
4

(c) Explain the various serration techniques in detail.
7
Q.3 (a) Define the primary recycling.
3

(b) Write short notes on Granulators.
4

(c) Explain the Cryogenic Grinding, and reprocessing low Bulk
7
density plastic waste with plunger and screw type of stuffer
Q.4 (a) Define the secondary recycling.
3

(b) Write short notes on Equipment Required for secondary
4
recycling.

(c) Explain Secondary Recycling by Co-extrusion and Co-
7
injection Molding.
Q.5 (a) Define the Tertiary Recycling.
3

(b) Write short notes on Chemical decomposition of plastics waste.
4

(c) Explain the Pyrolysis of plastic waste with suitable diagram
7
and reactions.
Q.6 (a) Define the Incineration.
3

(b) Write short notes on medical plastic waste.
4

(c) Explain the Incineration of plastics waste and Problems
7
associated with incineration of plastic waste
Q.7 (a) Explain in short the disposal of waste plastics without the
3
recovery of value.

(b) Draw the diagram of Mitsubishi Reverzer?
4

(c) Explain the Recycling of medical waste in detail.
7
Q.8 (a) Explain the Recycling of Medical Plastic Waste ?
3
(b) Explain the recycling of PET .
4
(c) Explain the Environmental Implications of Recycling &
7
Polymer Degradation.

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