Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem New 2172307 Frp Technology And Composites Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2172307 Date: 03/12/2019
Subject Name: FRP Technology and composites
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) Which are the advantages of FRP? 03
(b) Explain Hand layup process. List various advantages and
limitations of Hand layup process.
04
(c) What are the advantages of Vacuum bag molding process?
Explain vacuum bag molding process with neat diagram.
07
Q.2 (a) Define: Composites, Gelation, Curing 03
(b) Discuss material selection and process selection criteria for
designing in FRP.
04
(c) With neat diagram explain Pultrusion process. Which
products can be prepared by this process?
07
OR
(c) Discuss various types of accelerators used for unsaturated
polyester resin.
07
Q.3 (a) List various types and forms of glass fibers used as
reinforcement.
03
(b) Explain Plaster mold with neat diagram. 04
(c) With neat flow diagram explain manufacturing of carbon
fiber.
07
OR
Q.3 (a) What is the role of Surfacing tissue? Explain. 03
(b) Discuss Aramid fiber along with its advantages. 04
(c) Explain curing reaction of unsaturated polyester resin. 07
Q.4 (a) Discuss various types of glycols used to prepare unsaturated
Polyester resin.
03
(b) Enlist various commercially available polyester resins.
Explain role of Gelcoat and topcoat in brief.
04
(c) Explain GRP molds with neat diagram. 07
OR
Q.4 (a) Explain types of catalysts used for unsaturated polyester
resin.
03
(b) How Prepreg is prepared? Explain with neat diagram. 04
(c) Resin Transfer molding process along with its advantages. 07
Q.5 (a) What is the role of monomer in preparation of polyester
resin? List various types of monomer used.
03
(b) Explain manufacturing process for glass fibers with neat
diagram.
04
(c) With neat diagram explain Sheet molding compound along
with its formulation.
07
OR
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2172307 Date: 03/12/2019
Subject Name: FRP Technology and composites
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) Which are the advantages of FRP? 03
(b) Explain Hand layup process. List various advantages and
limitations of Hand layup process.
04
(c) What are the advantages of Vacuum bag molding process?
Explain vacuum bag molding process with neat diagram.
07
Q.2 (a) Define: Composites, Gelation, Curing 03
(b) Discuss material selection and process selection criteria for
designing in FRP.
04
(c) With neat diagram explain Pultrusion process. Which
products can be prepared by this process?
07
OR
(c) Discuss various types of accelerators used for unsaturated
polyester resin.
07
Q.3 (a) List various types and forms of glass fibers used as
reinforcement.
03
(b) Explain Plaster mold with neat diagram. 04
(c) With neat flow diagram explain manufacturing of carbon
fiber.
07
OR
Q.3 (a) What is the role of Surfacing tissue? Explain. 03
(b) Discuss Aramid fiber along with its advantages. 04
(c) Explain curing reaction of unsaturated polyester resin. 07
Q.4 (a) Discuss various types of glycols used to prepare unsaturated
Polyester resin.
03
(b) Enlist various commercially available polyester resins.
Explain role of Gelcoat and topcoat in brief.
04
(c) Explain GRP molds with neat diagram. 07
OR
Q.4 (a) Explain types of catalysts used for unsaturated polyester
resin.
03
(b) How Prepreg is prepared? Explain with neat diagram. 04
(c) Resin Transfer molding process along with its advantages. 07
Q.5 (a) What is the role of monomer in preparation of polyester
resin? List various types of monomer used.
03
(b) Explain manufacturing process for glass fibers with neat
diagram.
04
(c) With neat diagram explain Sheet molding compound along
with its formulation.
07
OR
2
Q.5 (a) What is the function of diluents in epoxy resin? Explain
reactive diluents.
03
(b) Write about Reduced flammability resins and Low styrene
emission polyester resins in brief.
04
(c) Which type of products can be manufactured by Filament
Winding? Explain process with neat diagram.
07
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This post was last modified on 20 February 2020