August
T24/TML063/EE/20150816
2015
Engineering Materials -1
Instructions:
MARKS-80
Time: 3 Hrs
1. All questions are compulsory.
2. “Long Answer type Question (LAQ)” is a supply type
question of 15 marks which required a typical answer of about
60-80 lines in bout 32-40 minutes.
3. “Sort Answer type Question (SAQ)” is a supply type question
of 5 marks which required a typical answer of about 15-20 lines
in bout 08-10 minutes.
4. Figures to the right indicate marks allotted to the questions.
5. Assume suitable data if necessary
6. Use a nonprogrammable type of scientific calculator is
allowed
Marks
SECTION-A
Q.1 Explain any 5 out of following terms :
(a) Density
(b) Dielectric Constant
(c) Heat Capacity
(d) Refractive Index
(e) Solubility
(f) Optical Activity
(g) Viscosity and surface Tension
15
OR
Q.1 Explain magnetic properties of material in detail.
15
Q.2 Explain following terms:
(a) Polyethylene
(b) Polypropylene
(c) Polytetrafluoro ethylene (PTFE) or Teflon
15
OR
Q.2 Explain following terms:
(a) Thermoplastic polymers
(b) Thermosetting polymers
(c) Engineering Plastics.
15
Q.3 State thermodynamic properties of Materials.
5
Q.4 Analyze the difference between cutting and crushing wears.
5
SECTION-B
Q.5 Explain in detail methodology of selection of polymer material.
15
OR
Q.5 Describe in detail wear of materials.
15
Q.6 Describe in detail Heat-Treatable Low-Alloy Steels.
15
OR
Q.6 Explain with neat Diagram Higher carbon steel.
15
Q.7 Compare static friction and kinetic friction.
5
Q.8 Write short note on plastics for electrical applications.
5
Computer Generated Random Question Paper dated: 17-07-2015 16:39:31
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