MechanicalFirst year 10EME14

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Mechanical(First year) 10EME14

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Sub Code : 10EME14 / 10EME24 IA Marks : 25
Hrs/ Week : 04 Exam Hours : 03
Total Hrs. : 52 Exam Marks : 100
PART – A
UNIT-1
Energy and Steam
Forms, Sources and Classification of energy. Utilization of energy with
simple 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 sketches
for mountings and accessories)
 7 Hours
UNIT-2
Turbines
Steam turbines – Classification, Principle of operation of Impulse and
reaction. Delaval’s turbine, Parson’s turbine. Compounding of Impulse
turbines.
Gas turbines – Classification, Working principles and Operations of Open
cycle and Closed cycle gas turbines.
Water turbines –Classification, Principles and operations of Pelton wheel,
Francis turbine and Kaplan turbine
 7 Hours
UNIT-3
Internal Combustion Engines
Classification, I.C. Engines parts, 2/4 – Stroke Petrol and 4-stroke diesel
engines. P-V diagrams of Otto and Diesel cycles. Simple problems on
indicated power, Brake power, Indicated thermal efficiency, Brake thermal
efficiency, Mechanical efficiency and specific fuel consumption.
6 Hours
UNIT-4
Refrigeration and Air conditioning
Refrigerants, Properties of refrigerants, List of commonly used refrigerants.
Refrigeration - Definitions - Refrigerating effect, Ton of Refrigeration, Ice
making capacity, COP, Relative COP, Unit of Refrigeration. Principle and
working of vapor compression refrigeration and vapor absorption
refrigeration. Principles and applications of air conditioners, Room air
conditioner.
 6 Hours 21
PART – B
UNIT-5
Lathe and Drilling Machines
Lathe - Principle of working of a centre lathe. Parts of a lathe. Operations
on lathe - Turning, Facing, Knurling, Thread Cutting, Drilling, Taper turning
by Tailstock offset method and Compound slide swiveling method,
Specification of Lathe.
Drilling Machine – Principle of working and classification of drilling
machines. bench drilling Machine, Radial drilling machine. Operations on
drilling machine -Drilling, Boring, Reaming, Tapping, Counter sinking,
Counter boring and Spot facing. Specification of radial drilling machine.

7 Hours
UNIT-6
Milling and Grinding Machines
Milling Machine – Principle of milling, Types of milling machines.
Principle & working of horizontal and vertical milling machines. Milling
Processes - Plane milling, End milling, Slot milling, Angular milling, Form
milling, Straddle milling and Gang milling. Specification of universal milling
machine.
Grinding Machine – Principle and classification of Grinding Machines.
Abrasives- Definition, Types and applications. Bonding materials. Type of
Grinding machines, Principle and working of surface grinding, Cylindrical
grinding and Centerless grinding.
 7 Hours
UNIT-7
Joining Processes, Lubrication and Bearings
Soldering, Brazing and Welding
Definitions. Classification and method of Soldering, Brazing and welding
and differences. Brief description of arc welding and Oxy-Acetylene welding

Lubrication and Bearings
Lubricants-Classification and properties. Screwcap, Tell-Tale, Drop feed,
Wick feed and Needle lubricators. Ring, Splash and Full pressure
lubrication. Classification of bearings, Bushed bearing, Pedestal bearing,
Pivot bearing, Collar bearings and Antifriction bearings.
 6 Hours 
UNIT-8
Power Transmission
Belt Drives - Classification and applications, Derivations on length of belt.
Definitions - Velocity ratio, Creep and slip, Idler pulley, stepped pulley and
fast & loose pulley.
Gears - Definitions, Terminology, Types and uses. Gear drives and
Gear Trains – Definitions and classifications, Simple problems.
 6 Hours
Text Books:
1. A Text Book of Elements of Mechanical Engineering - S. Trymbaka
Murthy, 3rd revised edition 2006, I .K. International Publishing House
Pvt. Ltd., New Delhi.
Reference Books:
1. A Text Book of Elements of Mechanical Engineering – K.R.
Gopalkrishna, Subhash Publishers, Bangalore.
2. The Elements of Workshop Technology - Vol I & II , SKH Chowdhary,
AKH Chowdhary , Nirjhar Roy, 11th edition 2001, Media Promotors and
Publishers, Mumbai.
3. Elements of Mechanical Engineering –Dr.A.S.Ravindra, Best
Publications, 7th edition 2009.


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