PTU Punjab Technical University B-Tech May 2019 Question Papers 3rd Semester AE-Automobile-Engineering
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Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (AE) (2011 Onwards) (Sem.?3)
AUTOMOTIVE MATERIALS
Subject Code : BTAE-305
M.Code : 54113
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.
SECTION-A
1.
Answer briefly :
a. What is vulcanisation of rubber?
b. Give two examples of applications where composites are used for non-structural
application.
c. What are some of the typical characteristic of ceramic materials?
d. What is the difference between GRP and FRP?
e. What is the working principle of hot isostatic pressing?
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f. Which heat treatment process would you suggest so as to increase the machining
characteristics of steels having large concentration of Fe3C?
g. What is Anodizing?
h. Name the two processes used for depositing thin film coatings
i. What is polymerization?
j. Name the process of heat treatment of gears.
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SECTION-B
2.
How recrystallization temperature effect the properties of material? Discuss.
3.
Explain the following terms :
a) Normalizing
b) Quenching
c) Tempering
4.
What are the various alloying elements added to steel and how they affect the various
mechanical properties?
5.
Distinguish between thermoplastic and thermosetting polymers with suitable example.
6.
Write a note on thermal spraying with its sketch.
SECTION-C
7.
a) Write down the advantages and disadvantages of carbon matrix.
b) How glass is fractured? Describe its procedure in brief.
8.
What are Metal Matrix Composites? Describe any one method for fabricating polymer
matrix composite.
9.
Discuss the properties of alloys of copper and nickel with their applications.
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 04 November 2019