Download GTU BE/B.Tech 2019 Winter 6th Sem New 2163407 Plastic Manufacturing Technology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem New 2163407 Plastic Manufacturing Technology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VI (New) EXAMINATION ? WINTER 2019
Subject Code: 2163407 Date: 09/12/2019

Subject Name: Plastic Manufacturing Technology

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Define Plastics Processing Techniques and write down selection criteria for
choosing a particular processing method?
03
(b) Explain Melting & Solidification behavior of polymer 04
(c) What are the process parameters merits and de-merits of Thermoset Injection
moulding machine.
07

Q.2 (a) Define:1) Shot Capacity, 2) Clamping Force, 3) Injection pressure 03
(b) Write down Cycle time process variables & its effects on moulding quality 04
(c) Explain Transfer Molding with merits and demerits 07
OR
(c) Explain Influence of process variables such as temperature, pressure, part size
& configuration on quality and cycle time of Compression moulding
07
Q.3 (a) Write a short note on Plunger transfer moulding 03
(b) Differentiate between single screw extruder and Twin screw extruder 04
(c) Classify the types of screw used in extrusion and explain any one in details
with neat sketch.
07
OR
Q.3 (a) Write a short note on screw transfer moulding 03
(b) Write down merit and de-merit of Twin screw extruder 04
(c) Classify the types of dies used in extrusion and explain any one in details with
neat sketch.
07
Q.4 (a) Write a short note on Blown film 03
(b) Write short note on multilayer blow moulding process 04
(c) Write down the Trouble shooting in blow moulding with remedies 07

OR
Q.4 (a) Write a short note on Cast film 03
(b) Differentiate between extrusion blow moulding process & injection blow
moulding process.
04
(c) Explain parision programming. 07
Q.5 (a) Classify the types blow moulding machine 03
(b) Discuss Matched die forming in detail 04
(c) Explain pressure forming process with neat sketch 07
OR

Q.5 (a) Write down design factors affecting blow mould product 03
(b) Discuss in drape Forming in detail 04
(c) Explain plug assist thermoforming process with Advantage, Disadvantage &
applications.
07

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