2010 Anna University Chennai B.E Mechanical Engineering Ge 2021 — environmental science and engineering Question paper

2010 Anna University Chennai B.E Mechanical Engineering Ge 2021 — environmental science and engineering Question paper

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2010
Fifth Semester

Mechanical Engineering
GE 2021 — ENVIRONMENTAL SCIENCE AND ENGINEERING

(Common to B.E./B.Tech. Third Semester Computer Science and Engineering, Civil
Engineering and Information Technology)
(Also common to Fourth Semester Biomedical Engineering and Fifth
Semester/Aeronautical Engineering, Automobile Engineering, Electronics and
Communication Engineering and Production Engineering)
(Regulation 2008)

Time : Three hours Maximum : 100 Marks
Answer ALL questions
PART A — (10 × 2 = 20 Marks)

1. What are the types of grasslands ecosystem?
2. Define Species diversity.
3. What do you understand by soil pollution?
4. What are the causes of noise pollution?
5. List the causes of deforestation.
6. List the advantages and disadvantages of the hydel power.
7. Define urbanization.
8. How can global warming be controlled?
9. What is population explosion?
10. What are HlV and AIDS?

PART B — (5 × 16 = 80 Marks)
11. (a) (i) Discuss briefly the structural and functional components of an eco system. (Marks 8)
(ii) Write down the ecological succession and ecological pyramids. (Marks 8)
Or
(b) (i) Classify and explain the value of biodiversity. (Marks 8)
(ii) Write about in-situ and ex-situ conservation of biodiversity. (Marks 8)

12. (a) (i) What do you know about Tsunami? Explain the formation of tsunami. (Marks 8)
(ii) Explain the different stages municipal sewage treatment. (Marks 8)
Or
(b) (i) Explain clearly the stages of solid waste management. (Marks 8)
(ii) Explain the sources and effects of thermal pollution. (Marks 8)

13. (a) (i) Explain the following in detail
(1) Desertification (Marks 4)
(2) Land degradation. (Marks 4)
(ii) Explain the various Conventional energy resources. (Marks 8)
Or
(b) (i) Explain the following in detail
(1) Mineral Resources (Marks 4)
(2) Food Resources. (Marks 4)
(ii) Discuss in detail the over-exploitation of forests. (Marks 8)

14. (a) (i) Explain the powers and functions of state pollution control board. (Marks 8)
(ii) Explain the wild life protection act. (8)
Or
(b) (i) Explain the 'Ozone' and Ozone layer depletion. (Marks 8)
(ii) Discuss the energy requirement in detail for sustaining urban life.
(Marks 8)

15. (a) (i) Write about the role of IT in environment and human health. (Marks 10)
(ii) Mention the causes of HIV transmission. (Marks 6)
Or
(b) (i) Discuss the necessity of formation of women self help group. (6)
(ii) Explain the need for value education. (6)
(iii) Write about child welfare. (4)

ME1205 MANUFACTURING TECHNOLOGY LAB ANNA UNIVERSITY CHENNA B.E. MECHANICAL ENGINEERING SYLLABUS

ANNA UNIVERSITY CHENNAI B.E DEGREE PROGRAMME MECHANICAL ENGINEERING SYLLABUS
CURRICULUM 2004 (Offered in Colleges affiliated to Anna University)
B.E DEGREE PROGRAMME MECHANICAL ENGINEERING III SEMESTER
ME1205 MANUFACTURING TECHNOLOGY LAB II 0 0 3 100

Exercises
Two or More Metal Cutting Experiments
(Example: Shear Angle Measurement, Cutting Force Measurement, Cutting Temperature Measurement, Tool Wear Measurement, Life Measurement etc.)
One or More Exercises in Milling Machines
(Example: Milling Polygon Surfaces, Gear milling, Keyway milling, Helical Groove milling etc.)
Two or More Exercises in Grinding / Abrasive machining
(Example: Surface Grinding, Cylindrical Grinding, Centreless Grinding, Lapping, Honing etc.)
Two or More Exercises in Machining Components for Assembly of different fits.
(Example: Machining using Lathes, Shapers, Drilling, Milling, Grinding Machines etc.)
One or More Exercises in Capstan or Turret Lathes
One or More Exercises in Gear Machining
(Example: Gear Cutting, Gear Shaping, Gear Hobbing etc.)
One or More Exercises in CNC Machines
(Example: CNC Programming, CNC Tooling, CNC Machining etc.)
TOTAL : 45
LIST OF EQUIPMENT
(for a batch of 30 students)

1. Centre Lathes - 15 No (5 Precision Type)
2. Turret and Capstan Lathes - 1 No each
3. Horizontal Milling Machine - 1 No
4. Vertical Milling Machine - 1 No
5. Surface Grinding Machine - 1 No
6. Tool Dynamometer - 1 No
7. Gear Hobbing Machine - 1 No
8. CNC Lathe (Trainer or Industrial Type) - 1 No

ME1204 FLUID MECHANICS AND MACHINERY LAB ANNA UNIVERSITY CHENNA B.E. MECHANICAL ENGINEERING SYLLABUS

ANNA UNIVERSITY CHENNAI B.E DEGREE PROGRAMMEMECHANICAL ENGINEERING SYLLABUS
CURRICULUM 2004 (Offered in Colleges affiliated to Anna University)
B.E DEGREE PROGRAMME MECHANICAL ENGINEERING III SEMESTER
ME1204 FLUID MECHANICS AND MACHINERY LAB 0 0 3 100
(Common to Mechanical, Mechatronics and Automobile)

LIST OF EXPERIMENTS
Determination of the Coefficient of discharge of given Orifice meter.
Determination of the Coefficient of discharge of given Venturi meter.
Calculation of the rate of flow using Rota meter.
Determination of friction factor for a given set of pipes.
Conducting experiments and drawing the characteristic curves of centrifugal pump / submergible pump
Conducting experiments and drawing the characteristic curves of reciprocating pump.
Conducting experiments and drawing the characteristic curves of Gear pump.
Conducting experiments and drawing the characteristic curves of Pelton wheel.
Conducting experiments and drawing the characteristics curves of Francis turbine.
Conducting experiments and drawing the characteristic curves of Kaplan turbine.

TOTAL : 45

LIST OF EQUIPMENT
(for a batch of 30 students)

Orifice meter setup
Venturi meter setup
Rotameter setup
Pipe Flow analysis setup
Centrifugal pump/submergible pump setup
Reciprocating pump setup
Gear pump setup
Pelton wheel setup
Francis turbine setup
Kaplan turbine setup

Quantity: one each.

ME1203 MANUFACTURING TECHNOLOGY - II ANNA UNIVERSITY CHENNA B.E. MECHANICAL ENGINEERING SYLLABUS

ANNA UNIVERSITY CHENNAI:: CHENNAI 600 025
CURRICULUM 2004 B.E. MECHANICAL ENGINEERING
SEMESTER - III

ME1203 MANUFACTURING TECHNOLOGY - II 3 0 0 100

OBJECTIVE
• To understand the concept and basic mechanics of metal cutting, working of standard machine tools such as lathe, shaping and allied machines, milling, drilling and allied machines, grinding and allied machines and broaching
• To understand the basic concepts of computer numerical control (CNC) machine tool and CNC programming.

1. THEORY OF METAL CUTTING 8
Introduction: material removal processes, types of machine tools – theory of metal cutting: chip formation, orthogonal metal cutting, cutting tool materials, tool wear, tool life, surface finish, cutting fluids.

2. CENTRE LATHE AND SPECIAL PURPOSE LATHES 10
Centre lathe, constructional features, cutting tools, various operations, taper turning methods, thread cutting methods, special attachments, machining time and power estimation.
Capstan and turret lathes – automatic lathes : semi automatic, automats – single spindle : cutting off, swiss type, automatic screw type – multi spindle; cutting off, bar type

3. RECIPROCATING AND MILLING MACHINES 10
Reciprocating machine tools: shaper, planer, slotter ; milling : types, milling cutters, operations ; hole making : drilling, reaming, boring, tapping

4. ABRASIVE PROCESS, SAWING, BROACHING AND GEAR CUTTING 10
Abrasive processes: grinding wheel – specifications and selection, types of grinding process – cylindrical grinding, surface grinding, centreless grinding – honing, lapping, super finishing, polishing and buffing, abrasive jet grinding
Sawing machine: hack saw, band saw, circular saw; broaching machines: broach construction – push, pull, surface and continuous broaching machines, gear cutting: forming, generation, shaping, hobbing.

5. CNC MACHINE TOOLS AND PART PROGRAMMING 7
Numerical control(NC) machine tools – CNC: types, constructional details, special features.
Part programming fundamentals – manual programming – computer assisted part programming – apt language.

TOTAL : 45
TEXT BOOKS
Rao, P.N. “Manufacturing Technology”, Metal Cutting and Machine Tools, Tata McGraw–Hill, New Delhi, 2003.
Richerd R. Kibbe, John E. Neely, Roland O. Merges and Warren J. White, “Machine Tool Practices”, Prentice Hall of India, 2003.

REFERENCES
HMT – “Production Technology”, Tata McGraw-Hill, 1998.
P.C. Sharma, “A Text Book of Production Engineering”, S. Chand and Co. Ltd, IV edition, 1993.
Hajra Choudry, “Elements of Work Shop Technology – Vol. II”, Media Promoters. 2002
Geofrey Boothroyd, “Fundamentals of Metal Machining and Machine Tools”, McGraw Hill, 1984.

ME1202 FLUID MECHANICS AND MACHINERY ANNA UNIVERSITY CHENNA B.E. MECHANICAL ENGINEERING SYLLABUS

ANNA UNIVERSITY CHENNAI:: CHENNAI 600 025
CURRICULUM 2004 B.E. MECHANICAL ENGINEERING
SEMESTER - III

ME1202 FLUID MECHANICS AND MACHINERY 3 1 0 100
(Common to Mechanical, Production, Mechatronics, Automobile and Aeronautical)

OBJECTIVE
• To understand the structure and the properties of the fluid.
• To analyse and appreciate the complexities involved in solving the fluid flow problems.
• To study the mathematical techniques already in vogue and apply them to the solutions of practical flow problems.
• To understand the energy exchange process in fluid mechanics handling incompressible fluids.

1. BASIC CONCEPTS AND PROPERTIES 6
Fluid – definition, distinction between solid and fluid - Units and dimensions - Properties of fluids - density, specific weight, specific volume, specific gravity, temperature, viscosity, compressibility, vapour pressure, capillary and surface tension - Fluid statics: concept of fluid static pressure, absolute and gauge pressures - pressure measurements by manometers and pressure gauges.

2. FLIUD KINEMATICS AND FLUID DYNAMICS 12
Fluid Kinematics - Flow visualization - lines of flow - types of flow - velocity field and acceleration - continuity equation (one and three dimensional differential forms)- Equation of streamline - stream function - velocity potential function - circulation - flow net – fluid dynamics - equations of motion - Euler's equation along a streamline - Bernoulli's equation – applications - Venturi meter, Orifice meter, Pitot tube - dimensional analysis - Buckingham's  theorem- applications - similarity laws and models.

3. INCOMPRESSIBLE FLUID FLOW 12
Viscous flow - Navier-Stoke's equation (Statement only) - Shear stress, pressure gradient relationship - laminar flow between parallel plates - Laminar flow through circular tubes (Hagen poiseulle's) - Hydraulic and energy gradient - flow through pipes - Darcy -weisback's equation - pipe roughness -friction factor- Moody's diagram-minor losses - flow through pipes in series and in parallel - power transmission - Boundary layer flows, boundary layer thickness, boundary layer separation - drag and lift coefficients.

4. HYDRAULIC TURBINES 8
Fluid machines: definition and classification - exchange of energy - Euler's equation for turbo machines - Construction of velocity vector diagrams - head and specific work - components of energy transfer - degree of reaction.

Hydro turbines: definition and classifications - Pelton turbine - Francis turbine - propeller turbine - Kaplan turbine - working principles - velocity triangles - work done - specific speed - efficiencies -performance curve for turbines.

5. HYDRAULIC PUMPS 7
Pumps: definition and classifications - Centrifugal pump: classifications, working principle, velocity triangles, specific speed, efficiency and performance curves - Reciprocating pump: classification, working principle, indicator diagram, work saved by air vessels and performance curves - cavitations in pumps - rotary pumps: working principles of gear and vane pumps

TUTORIALS 15
TOTAL : 60
TEXT BOOKS
1. Streeter, V.L., and Wylie, E.B., “Fluid Mechanics”, McGraw-Hill, 1983.
2. Kumar, K.L., “Engineering Fluid Mechanics”, Eurasia Publishing House (P) Ltd, New Delhi (7th edition), 1995.
3. Vasandani, V.P., “Hydraulic Machines - Theory and Design”, Khanna Publishers.1992

REFERENCES
1. Bansal, R.K., “Fluid Mechanics and Hydraulics Machines”, (5th edition), Laxmi publications (P) Ltd, New Delhi, 1995
2. White, F.M., “Fluid Mechanics”, Tata McGraw-Hill, 5th Edition, New Delhi, 2003.
3. Ramamirtham, S., "Fluid Mechanics and Hydraulics and Fluid Machines", Dhanpat Rai and Sons, Delhi, 1998.
4. Som, S.K., and Biswas, G., “Introduction to Fluid Mechanics and Fluid Machines”, Tata McGraw-Hill, 2nd Edition, 2004.

ME1201 ENGINEERING THERMODYNAMICS ANNA UNIVERSITY CHENNA B.E. MECHANICAL ENGINEERING SYLLABUS

ANNA UNIVERSITY CHENNAI:: CHENNAI 600 025
CURRICULUM 2004 B.E. MECHANICAL ENGINEERING
SEMESTER - III
ME1201 ENGINEERING THERMODYNAMICS 3 1 0 100
(Common to Mechanical and Production)

OBJECTIVE
To achieve an understanding of principles of thermodynamics and to be able to use it in accounting for the bulk behaviour of the simple physical systems.
To provide in-depth study of thermodynamic principles, thermodynamics of state, basic thermodynamic relations, Principle of Psychrometry & Properties of pure substances
To enlighten the basic concepts of vapour power cycles.

1. BASIC CONCEPT AND FIRST LAW 9
Basic concepts - concept of continuum, macroscopic approach, thermodynamic systems - closed, open and isolated. Property, state, path and process, quasi-static process, work, modes of work, Zeroth law of thermodynamics – concept of temperature and heat. Concept of ideal and real gases. First law of thermodynamics – application to closed and open systems, internal energy, specific heat capacities, enthalpy, steady flow process with reference to various thermal equipments.

2. SECOND LAW, ENTROPY AND AVAILABILITY 9
Second law of thermodynamics – Kelvin’s and Clausius statements of second law. Reversibility and irreversibility. Carnot cycle, reversed carnot cycle, efficiency, COP. Thermodynamic temperature scale, Clausius inequality, concept of entropy, entropy of ideal gas, principle of increase of entropy – Carnot theorem, absolute entropy, availability.

3. PROPERTIES OF PURE SUBSTANCE AND STEAM POWER CYCLE 9
Properties of pure substances – Thermodynamic properties of pure substances in solid, liquid and vapour phases, phase rule, P-V, P-T, T-V, T-S, H-S diagrams, PVT surfaces, thermodynamic properties of steam. Calculations of work done and heat transfer in non-flow and flow processes. Standard Rankine cycle, Reheat and regenerative cycle.

4. IDEAL & REAL GASES AND THERMO DYNAMIC RELATIONS 9
Gas mixtures – Properties of ideal and real gases, equation of state, Avagadro’s law, Vander Waal’s equation of states, compressibility, compressibility chart. Dalton’s law of partial pressure, Exact differentials, T-D, relations, Maxwell relations, Clausius Clapeyron equations, Joule Thomson Coefficient.

5. PSYCHROMETRY 9
Psychrometry and psychrometric charts, property calculations of air vapour mixtures. Psychrometric process – Sensible heat exchange processes. Latent heat exchange processes. Adiabatic mixing, evaporative cooling, problems.

TUTORIALS 15

TOTAL : 60
(Use of standard thermodynamic tables, Mollier diagram, Psychometric chart and Refrigerant property tables are permitted)

TEXT BOOKS
Nag.P.K., “Engineering Thermodynamics”, Tata McGraw-Hill, New Delhi, 1998.
Cengel, “Thermodynamics” An Engineering Approach, Third Edition – 2003, Tata Mc Graw Hill, New Delhi.

REFERENCES
Holman.J.P., “Thermodynamics”, 3rd Ed. McGraw-Hill, 1995.
Venwylen and Sontag, “Classical Thermodynamics”, Wiley Eastern, 1987
Arora C.P, “ Thermodynamics”, Tata McGraw-Hill, New Delhi, 2003.
Merala C, Pother, Craig W, Somerton, “ Thermodynamics for Engineers”, Schaum Outline Series, Tata McGraw-Hill, New Delhi, 2004.
Sri Vastava R.C, Saha S. K, Jan A. K, “ Thermodynamics” Prentice Hall of India, New Delhi, 2004.

EE1214 ELECTRICAL ENGINEERING LABORATORY Syllabus

ANNA UNIVERSITY CHENNAI B.E DEGREE PROGRAMMEMECHANICAL ENGINEERING SYLLABUS
CURRICULUM 2004 (Offered in Colleges affiliated to Anna University)
B.E DEGREE PROGRAMME MECHANICAL ENGINEERING III SEMESTER
EE1214 ELECTRICAL ENGINEERING LABORATORY 0 0 3 100

LIST OF EXPERIMENTS
Load test on DC Shunt & DC Series motor
O.C.C & Load characteristics of DC Shunt and DC Series generator
Speed control of DC shunt motor (Armature, Field control)
Load test on single phase transformer
O.C & S.C Test on a single phase transformer
Regulation of an alternator by EMF & MMF methods.
V curves and inverted V curves of synchronous Motor
Load test on three phase squirrel cage Induction motor
Speed control of three phase slip ring Induction Motor
Load test on single phase Induction Motor.
Study of DC & AC Starters
TOTAL : 45

LIST OF EQUIPMENT
(for batch of 30 students)

DC Shunt motor - 2
DC Series motor - 1
DC shunt motor-DC Shunt Generator set - 1
DC Shunt motor-DC Series Generator set - 1
Single phase transformer - 2
Three phase alternator - 2
Three phase synchronous motor - 1
Three phase Squirrel cage Induction motor - 1
Three phase Slip ring Induction motor - 1
Single phase Induction motor - 1

EE1213 ELECTRICAL DRIVES AND CONTROLS

ANNA UNIVERSITY CHENNAI B.E DEGREE PROGRAMMEMECHANICAL ENGINEERING SYLLABUS
CURRICULUM 2004 (Offered in Colleges affiliated to Anna University)
B.E DEGREE PROGRAMME MECHANICAL ENGINEERING III SEMESTER

EE1213 ELECTRICAL DRIVES AND CONTROLS 3 0 0 100
(Common to Mechanical and Production)

OBJECTIVE
• To understand the basic concepts of different types of electrical machines and their performance.
• To study the different methods of starting D.C motors and induction motors.
• To study the conventional and solid-state drives.

1. INTRODUCTION 8
Basic Elements – Types of Electric Drives – factors influencing the choice of electrical drives – heating and cooling curves – Loading conditions and classes of duty – Selection of power rating for drive motors with regard to thermal overloading and Load variation factors

2. DRIVE MOTOR CHARACTERISTICS 9
Mechanical characteristics – Speed-Torque characteristics of various types of load and drive motors – Braking of Electrical motors – DC motors: Shunt, series and compound - single phase and three phase induction motors.

3. STARTING METHODS 8
Types of D.C Motor starters – Typical control circuits for shunt and series motors – Three phase squirrel cage and slip ring induction motors.

4. CONVENTIONAL AND SOLID STATE SPEED CONTROL OF D.C. DRIVES 10
Speed control of DC series and shunt motors – Armature and field control, Ward-Leonard control system - Using controlled rectifiers and DC choppers –applications.

5. CONVENTIONAL AND SOLID STATE SPEED CONTROL OF A.C. DRIVES 10
Speed control of three phase induction motor – Voltage control, voltage / frequency control, slip power recovery scheme – Using inverters and AC voltage regulators – applications.

TOTAL : 45
TEXT BOOKS
1. VEDAM SUBRAHMANIAM, “Electric Drives (concepts and applications)”, Tata McGraw-Hill, 2001
2. NAGRATH.I.J. & KOTHARI.D.P, “Electrical Machines”, Tata McGraw-Hill, 1998

REFERENCES
1. PILLAI.S.K “A first course on Electric drives”, Wiley Eastern Limited, 1998
2. M.D.SINGH, K.B.KHANCHANDANI, “Power Electronics”, Tata McGraw-Hill, 1998
H.Partab, “Art and Science and Utilisation of electrical energy”, Dhanpat Rai and Sons, 1994