Diploma Engineering Chemistry 1 Question Papers
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Diploma Engineering Chemistry 1 Question Papers
Unit 1 BASIC CONCEPTS IN CHEMISTRY
1.1 Atomic Structure and Chemical Bonding
Fundamental particles – proton – electron – neutron – atomic number – mass number – extra nuclear part – filling up of electrons – aufbau principle –s–p–d– f orbitals – electronic configuration – definition of atomic mass, molecular mass, equivalent mass, valency (definitions only) – octet rule – electrovalent bond – sodium chloride formation – covalent bond – formation of ammonia.
1.2 Periodic Table
Modern periodic law – periodic classification of elements – features of modern periodic table – properties of s–p–d–f block elements.
1.3 Acids and Bases
Properties of acids and bases – Lewis concept of acids and bases – advantages – pH and pOH – Definition – Numerical problems –
Indicator – Definition – Buffer solution – Definition – Types of buffer solution with examples – Application of pH in industries
Unit 2 SURFACE CHEMISTRY
2.1 Colloids
Colloids – Definition – True solution and Colloidal solution –
Differences – Types of colloids – Lyophilic and Lyophobic colloids – Differences – Properties – Tyndall effect – Brownian movement – Electrophoresis and Coagulation – Industrial applications of colloids – Smoke Precipitation by Cottrell’s method, Purification of water, Cleansing action of soap, Sewage disposal – tanning – and artificial rain.
2.2 Nanotechnology
Nano particles – definition – properties – application of Nanotechnology – Engineering – medicine – biomaterial.
2.3 Catalysis
Catalyst – Definition – Positive – Negative catalyst – Definition – Types of catalysis – Homogeneous and Heterogeneous – Promoter – Catalyst poison – active centre – Definition – Characteristics of a catalyst – Industrial applications of catalysts.
Unit 3 MINERALS AND METALLURGY
3.1 Minerals and Metallurgy
Mineral – Minerals of Tamilnadu – Sources and Uses (Basic concepts only) – Extraction of iron – Blast furnace – cast iron – steel manufacture – Bessemer converter – heat treatment of steel – hardening – annealing – tempering.
3.2 Metallurgy of Tungsten and Titanium
Extraction and uses of Tungsten and Titanium
3.3 Powder Metallurgy
Definition – Powder metallurgical process – Preparation of Metal Powder – Atomization – Reduction of Metal Oxide – blending – compacting – sintering – finishing – Applications of Powder Metallurgy.
Unit – 4 INDUSTRIAL CHEMISTRY
4.1 Nuclear Chemistry
Nuclear reaction – Differences between nuclear reaction and ordinary chemical reaction – Radioactive decay – alpha emission – beta emission – gamma emission – half-life period – simple problems– Nuclear fission –nuclear fusion – chain reaction – components nuclear reactor, reactor core, nuclear reactor coolant, Control rods, neutron moderator – steam turbine – Application of radioactive isotopes.
4.2 Cement and Ceramics
Definition – Manufacture of Portland Cement – Wet Process – Setting of Cement (No equation) – Ceramics – White pottery – Definition – Manufacture of White pottery – Uses – Definition of glazing – purpose – Method – Salt glazing – liquid glazing.
4.3 Refractories and Glass
Definition – requirements of a good refractory – types with examples and uses – uses of silica, fire clay and alumina.
Composition of Glass – Manufacture of Glass – annealing of glass – varieties of glass – Optical glass, wind shield glass and Photo chromatic glass.
Unit – 5 CHEMISTRY OF ENGINEERING MATERIALS
5.1 Polymer
Definition – Natural polymer – Rubber – Defects of natural rubber – Compounding of rubber – Ingredients and their functions – Vulcanization –Plastics – types – Thermoplastics and Thermosetplastics – Differences –Mechanical properties of plastics – Polymers in Surgery – Biomaterials – Definition – Biomedical uses of Polyurethane, PVC, Polypropylene and
Polyethylene.
5.2 Abrasives
Definition – classification – hardness in Moh’s scale – Natural abrasives – Diamond, Corundum, Emery and Garnet. Synthetic abrasives – Carborundum – Boroncarbide manufacture – properties and uses.
5.3 Composite Materials
Definition – examples – Classification of composites Advantages over metals and polymers – General application
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