GTU BE 8th Semester 2182308 Plastic Product Design Summer 2018 Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VIII (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2182308 Date: 30/04/2018
Subject Name: Plastic Product Design
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) What is product design? What is the importance of
product design.
03
(b) Explain the preliminary design considerations for
product design.
04
(c) Explain wall thickness design considerations while
designing the product.
07

Q.2 (a) What are undercuts? What care should be taken while
designing undercuts?
03
(b) List the short term and long term properties for designing
a plastic product.
04
(c) Explain the product design process for designing an
overhead water storage tank.
07
OR
(c) What is the importance of taper or draft in product
design?
07
Q.3 (a) Compare rotational molding with blow molding process. 03
(b) Explain the importance of designing radii and fillets in a
product.
04
(c) List the steps in product design. 07
OR
Q.3 (a) Justify the material and method used to manufacture a
chemical storage tank.
03
(b) Explain product design checklist. 04
(c) What is the importance of ribs and bosses? What are the
design considerations to be taken while designing ribs
and bosses?
07
Q.4 (a) Explain briefly the process to manufacture thermoset
dinnerware.
03
(b) Which is the process suitable for producing plastic
disposable cups? Justify.
04
(c) Explain molded holes in product design. 07
OR
Q.4 (a) List any two materials with their properties which are
used to make pipes for water supply.
03
(b) What care should be taken while selecting a material for
making insulated wires for electrical applications?
04
(c) Explain the product design process for designing a wrist
watch gear.
07
Q.5 (a) What is the importance of decorating a part in part
design?
03 1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VIII (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2182308 Date: 30/04/2018
Subject Name: Plastic Product Design
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) What is product design? What is the importance of
product design.
03
(b) Explain the preliminary design considerations for
product design.
04
(c) Explain wall thickness design considerations while
designing the product.
07

Q.2 (a) What are undercuts? What care should be taken while
designing undercuts?
03
(b) List the short term and long term properties for designing
a plastic product.
04
(c) Explain the product design process for designing an
overhead water storage tank.
07
OR
(c) What is the importance of taper or draft in product
design?
07
Q.3 (a) Compare rotational molding with blow molding process. 03
(b) Explain the importance of designing radii and fillets in a
product.
04
(c) List the steps in product design. 07
OR
Q.3 (a) Justify the material and method used to manufacture a
chemical storage tank.
03
(b) Explain product design checklist. 04
(c) What is the importance of ribs and bosses? What are the
design considerations to be taken while designing ribs
and bosses?
07
Q.4 (a) Explain briefly the process to manufacture thermoset
dinnerware.
03
(b) Which is the process suitable for producing plastic
disposable cups? Justify.
04
(c) Explain molded holes in product design. 07
OR
Q.4 (a) List any two materials with their properties which are
used to make pipes for water supply.
03
(b) What care should be taken while selecting a material for
making insulated wires for electrical applications?
04
(c) Explain the product design process for designing a wrist
watch gear.
07
Q.5 (a) What is the importance of decorating a part in part
design?
03
2

(b) Explain the selection of material for designing a contact
lens.
04
(c) Explain the process steps for designing plastic chair. 07
OR
Q.5 (a) Write a short note on threads in molded plastic parts. 03
(b) What is the importance of metal inserts in plastic part?
Explain briefly types of inserts and insert orientation.
04
(c) Explain the process steps for designing any plastic
product with hinge.
07
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