10EME24 Elements of Mechanical Engg syllabus for Physics Cycle


Part A
Unit-1 Energy and Steam 7 hours

Forms, Sources and Classification of energy. Utilization of energy withsimple block diagrams. Steam formation. Types of steam. Steam properties –Specific Volume, Enthalpy and Internal energy. (simple numerical problems)Steam boilers – classification, Lancashire boiler, Babcock and Wilcox boiler,Boiler mountings, Accessories, their locations and applications. (No sketchesfor mountings and accessories)

Unit-2 Turbines 7 hours

Steam turbines – Classification, Principle of operation of Impulse andreaction. Delaval’s turbine, Parson’s turbine. Compounding of Impulseturbines.Gas turbines – Classification, Working principles and Operations of Opencycle and Closed cycle gas turbines.Water turbines –Classification, Principles and operations of Pelton wheel,Francis turbine and Kaplan turbine

Unit-3 Internal Combustion Engines 6 hours

Classification, I.C. Engines parts, 2/4 – Stroke Petrol and 4-stroke dieselengines. P-V diagrams of Otto and Diesel cycles. Simple problems onindicated power, Brake power, Indicated thermal efficiency, Brake thermalefficiency, Mechanical efficiency and specific fuel consumption.

Unit-4 Refrigeration and Air conditioning 6 hours

Refrigerants, Properties of refrigerants, List of commonly used refrigerants.Refrigeration - Definitions - Refrigerating effect, Ton of Refrigeration, Icemaking capacity, COP, Relative COP, Unit of Refrigeration. Principle andworking of vapor compression refrigeration and vapor absorptionrefrigeration. Principles and applications of air conditioners, Room airconditioner.

Part B
Unit-5 Lathe and Drilling Machines 7 hours

Lathe - Principle of working of a centre lathe. Parts of a lathe. Operationson lathe - Turning, Facing, Knurling, Thread Cutting, Drilling, Taper turningby Tailstock offset method and Compound slide swiveling method,Specification of Lathe.Drilling Machine – Principle of working and classification of drillingmachines. bench drilling Machine, Radial drilling machine. Operations ondrilling machine -Drilling, Boring, Reaming, Tapping, Counter sinking,Counter boring and Spot facing. Specification of radial drilling machine.

Unit-6 Milling and Grinding Machines 7 hours

Milling Machine – Principle of milling, Types of milling machines.Principle & working of horizontal and vertical milling machines. MillingProcesses - Plane milling, End milling, Slot milling, Angular milling, Formmilling, Straddle milling and Gang milling. Specification of universal millingmachine.Grinding Machine – Principle and classification of Grinding Machines.Abrasives- Definition, Types and applications. Bonding materials. Type ofGrinding machines, Principle and working of surface grinding, Cylindricalgrinding and Centerless grinding.

Unit-7 Joining Processes, Lubrication and Bearings 6 hours

Soldering, Brazing and WeldingDefinitions. Classification and method of Soldering, Brazing and weldingand differences. Brief description of arc welding and Oxy-Acetylene weldingLubrication and BearingsLubricants-Classification and properties. Screwcap, Tell-Tale, Drop feed,Wick feed and Needle lubricators. Ring, Splash and Full pressurelubrication. Classification of bearings, Bushed bearing, Pedestal bearing,Pivot bearing, Collar bearings and Antifriction bearings.

Unit-8 Power Transmission 6 hours

Belt Drives - Classification and applications, Derivations on length of belt.Definitions - Velocity ratio, Creep and slip, Idler pulley, stepped pulley andfast & loose pulley.Gears - Definitions, Terminology, Types and uses. Gear drives andGear Trains – Definitions and classifications, Simple problems.

Last Updated: Tuesday, January 24, 2023