A building in which you are residing has caught fire on the fifth floor. 25 feet ladder is leaning against the building which caught fire and is positioned such that the base of the ladder is 20 feet from the base of the building. How far above the ground is the point where the ladder touches the building.
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Answer:
Total No of Questions: [10] SEAT NO. :
[ 4758 ] - 526 [Total No. of Pages : 2]
T.E. Mechanical (Sandwich) - 2012 Course
Materials and Manufacturing Engineering [302066]
Time: 3 Hours Max. Marks : 100
Instructions to the candidates:
1) Solve Q1 or 2, Q3 or 4, Q5 or 6, Q7 or 8, Q9 or 10, Q11 or 12.
2) Neat diagrams must be drawn wherever necessary.
3) Figures to the right side indicate full marks.
4) Use of Calculator, heat transfer data book, steam table is allowed.
5) Assume Suitable data if necessary
SECTION - I
Q1) a State Classification & characteristics of polymers and Types ofpolymerization. 8
b What is Metal matrix composite, Ceramic matrix composite? 8
Q2) a State processing and applications of ceramic materials - WC, TIC, Al2O3. 8
b What is Fiber Reinforced plastic? State its properties and engineering
applications.
8
Q3) a. What are Ceramicand Polymeric implant materials? Explain. 8
b. What is Soft & Hard Ferrites? State principle of Piezo electric and ferro electric
materials andtheir applications
8
Q4) a. State concepts of Nano science and use of technology. State technological
advantages of Nano materials.
8
b. What is Shape memory alloys? State its properties with examples. 8
Q5) a State classification of corrosion. 9
b How corrosion can be prevented by improvement in design. 9
Q6) a Explain : Internal & External coating, Cathodic& Anodic protection. 9
b Describe Impingement, and Cavitation corrosion