PTU Punjab Technical University B-Tech May 2019 Question Papers 5th Semester Aerospace Engineering
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Aerospace Engg.) (2012 Onwards) (Sem.?5)
AEROSPACE MATERIALS
Subject Code : ASPE-302
M.Code : 71836
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION 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
Q1. Answer briefly :
a) Use of composites in sport equipment.
b) Define blow molding.
c) Use of composites in automobiles.
d) Define malleability.
e) Define annealing.
f) Define tempering.
g) What are allotropic materials?
h) Define austempering.
i) Define intergranular corrosion.
j) Define Pure Clad.
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SECTION-B
Q2. Write the factors affecting the choice of materials for the following aircraft parts :
a) Wings
b) Landing gears.
Q3. Discuss heat treatable aluminum alloys in details.
Q4. How pure magnesium is produced? Write its physical properties.
Q5. Write various welding considerations. Explain the method of welding light alloys.
Q6. Write effect of following materials on the properties of steel and its alloys :
a) Manganese
b) Nickel.
SECTION-C
Q7. Classify composite materials. Discuss laminate composites.
Q8. Explain the manufacturing process of titanium with the help of a flow chart. Explain
machining process for this material.
Q9. Explain the heat treatment process for steels with the help of iron-carbon diagram.
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