Materials Science B.E Question Paper : jaduniv.edu.in
Name of the University : Jadavpur University
Department : Metallurgical Engineering
Degree : B.E
Subject Name : Materials Science
Sem : I
Website : jaduniv.edu.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/dspace.jdvu.ac.in/5469-MATERIALS%20SCIENCE_SEME1_2006.pdf
Materials Science Question Paper :
B. Met. Engg. Final Examination 2006 :
1st Semester :
Time: Three hours
Related : Jadavpur University Production of Ferro Alloys B.E Question Paper : www.pdfquestion.in/5465.html
Full Marks: 100
Answer any five questions. :
1. a) Define porosity. What are different types of porosity? Explain how does porosity influence other properties. 2+2+6
b) Discuss the determination of bulk density. 10
2. a) State and explain the process involved at the molecular level for the formation of silica gel. 5
b) Discuss the advantage and disadvantage of sol-gel process over the conventional process. 5
c) Out line the method of synthesis of metal silica nanocomposites through sol-gel process. 10
3. a) State Pauling second rule. Show that this rule is based on electro-neutrality condition. 2+10
b) Find the critical radius ratio for co-ordination number eight. 8
4. a) Define co-ordination number. Find the co-ordination number in F C. C. crystal. 1+2
b) Draw zinc blende structure. Compute the co-ordination number of anion. Explain the distribution of Zn2+ in the structure.
c) Discuss the spinel structure. What are the different types of spinel structure? Explain the origin of ferrimagnetism from the spinel structure. 2+1+5
5. a) Explain in details the temperature dependent phase transformation of fire clay and bentonite upto 1000°C.
b) Draw Al2O3-SiO2 phase diagram. Label the phase fields. Superduty silica brick will have less Al2O3 as impurity than conventional silica brick. Explain. 5+3
6. a) Explain the:
(i) representation of composition in a ternary system
(ii) representation of ternary entectic system in a plane
(iii) computation of the relative amount of phases in a simple ternary system during the course of cooling from liquid to solid. 2+3+5
b) Explain the bloating phenomenon in a fire clay brick. 4
c) Discuss the relative severity of CaO and FeO as slagging agents for fire clay brick. 6
7. a) State and explain the characteristics of different modes of phase transformation in SiO2. 5
b) Explain in a tabular form the different polymorphic transformations of Silica. 5
c) Explain the course of phase transformation of synthetically made 97.5% SiO2, 2% CaO and 0.5% Al2O3 silica brick during the course of heating from room temperature to 1450°C. 10
Syllabus :
Strength Of Materials :
Uniaxial stress field, Thin pressure vessels, Torsion (inclusive of Helical spring), shear force and Bending moment, Bending and shear stress in beams, Deflection beams, Energy methods in Strength of Materials, Problem of Plane stress and strain, Theories of failure, Buckling of columns.
Heat Engineering :
Heat, absolute temperature, units of heat and work, laws of thermodynamics, mechanical equivalent of heat, laws of perfect gases and their characteristics equation, Gas constants, specific heats, internal energy, expansion and compression of gases in general, carnot cycle, simple reciprocating air- compressor, properties of saturated and superheated steam, use of steam tables and charts.
Boilers and their types, orifice and nozzles, impulse and reaction turbines, types of condensers, gas and oil engines, petrol engines working cycles, indicated and break horse power, mechanical and thermal efficiency.
Refrigeration, COP of refrigeration cycle, Vapour compression refrigeration system, refrigerants.