Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 21821032182116 Composite Materials Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2182103/2182116 Date:17/05/2019
Subject Name: Composite Materials
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 are the advantages and limitations of composites over the
other class of materials?
03
(b) Draw labeled sketch and give suitable examples particulate
strengthened composites
04
(c) Enumerate the applications of composites in the field of:
1) Electrical and electronics,
2) Recreational and Sports equipments and
3) Aerospace industries.
07
Q.2 (a) Explain structural composites in detail. 03
(b) Derive an expression of rule of mixture to calculate stresses on
composites.
04
(c) Classify the composite materials based on the geometry of the
reinforcement and explain briefly any two of them.
07
OR
(c) Explain the influence of size, shape and distribution of particles on
mechanical properties of metal matrix composites.
07
Q.3 (a) Justify the statement, ?Glass fiber reinforced polymer matrix
composites are well suited to manufacture boats?.
03
(b) Explain the role of interfaces in composites. 04
(c) Describe briefly the desirable characteristics of fibers in fiber
reinforced composites.
07
OR
Q.3 (a) Explain wettability with suitable figures. 03
(b) Differentiate between discontinuous and continuous fiber
composites.
04
(c) What is critical fiber length? Distinguish between Optimal, Short
& Continuous size fibers.
07
Q.4 (a) What are advantages of ceramic matrix composites over other two
classes of composites?
03
(b) What are different methods used for metal matrix composites? List
them.
04
(c) Explain with a neat sketch, filament winding process and mention
the method and its applications.
07
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2182103/2182116 Date:17/05/2019
Subject Name: Composite Materials
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 are the advantages and limitations of composites over the
other class of materials?
03
(b) Draw labeled sketch and give suitable examples particulate
strengthened composites
04
(c) Enumerate the applications of composites in the field of:
1) Electrical and electronics,
2) Recreational and Sports equipments and
3) Aerospace industries.
07
Q.2 (a) Explain structural composites in detail. 03
(b) Derive an expression of rule of mixture to calculate stresses on
composites.
04
(c) Classify the composite materials based on the geometry of the
reinforcement and explain briefly any two of them.
07
OR
(c) Explain the influence of size, shape and distribution of particles on
mechanical properties of metal matrix composites.
07
Q.3 (a) Justify the statement, ?Glass fiber reinforced polymer matrix
composites are well suited to manufacture boats?.
03
(b) Explain the role of interfaces in composites. 04
(c) Describe briefly the desirable characteristics of fibers in fiber
reinforced composites.
07
OR
Q.3 (a) Explain wettability with suitable figures. 03
(b) Differentiate between discontinuous and continuous fiber
composites.
04
(c) What is critical fiber length? Distinguish between Optimal, Short
& Continuous size fibers.
07
Q.4 (a) What are advantages of ceramic matrix composites over other two
classes of composites?
03
(b) What are different methods used for metal matrix composites? List
them.
04
(c) Explain with a neat sketch, filament winding process and mention
the method and its applications.
07
2
OR
Q.4 (a) List the advantages of hybrid composites over normal fiber
composites.
03
(b) Describe with neat sketch the following reinforcements,
1) Whiskers and
2) Flakes
04
(c) Explain the process of squeeze casting of metal matrix composites. 07
Q.5 (a) Explain green composites in detail. 03
(b) Draw a lay out for synthesis of Nano-composites. Describe unique
properties exhibited by Nano- composites
04
(c) Explain the In-situ chemical reaction techniques used to fabricate
ceramic matrix composites.
07
OR
Q.5 (a) Discuss the application of fiber reinforced composites in
automobiles.
03
(b) Briefly explain functionally graded composites. 04
(c) Write a note on surface metal matrix composites and their
applications.
07
*************
FirstRanker.com - FirstRanker's Choice
This post was last modified on 20 February 2020