w.e.

f Academic Year 2012-13 ‘G’ Scheme

MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION, MUMBAI

TEACHING AND EXAMINATION SCHEME FOR POST S.S.C. DIPLOMA COURSES
COURSE NAME : DIPLOMA IN MECHANICAL ENGINEERING
COURSE CODE : MC
DURATION OF COURSE : 8 SEMESTERS WITH EFFECT FROM 2013-14
SEMESTER : EIGHT DURATION : 16 WEEKS
PATTERN : CORRESPONDANCE - SEMESTER SCHEME : G
TEACHING EXAMINATION SCHEME
SR. Abbrev SUB SCHEME SW
SUBJECT TITLE PAPER TH (1) PR (4) OR (8) TW (9)
NO iation CODE (17908)
TH TU PR HRS. Max Min Max Min Max Min Max Min
1 Management MAN 21030 06 01 -- 1&½ 50#* 20 -- -- -- -- -- --
2 Design of Machine Elements DME 21038 10 01 26 04 100 40 -- -- 25# 10 25@ 10
3 Elective (ANY ONE)
Refrigeration & Air 50
RAC 21039 07 01 24 03 100 40 -- -- -- -- 50@ 20
Conditioning
Renewable Energy Sources &
RES 21040 07 01 24 03 100 40 -- -- -- -- 50@ 20
Management
4 Project PRO 21041 -- -- 36 -- -- -- -- -- 50# 20 50@ 20
TOTAL 23 03 86 -- 250 -- -- 75 -- 125 -- 50
TOTAL CONTACT HOURS DURING RESIDENT SESSION: 112 HRS [15 days * 8 hrs per day]
Total Marks : 500
@ - Internal Assessment, # - External Assessment, No Theory Examination, $ - Common to all branches,
Abbreviations: TH-Theory, TU- Tutorial, PR-Practical, OR-Oral, TW- Term Work, SW- Sessional Work

NOTE:
1. HOURS MARKED BY * FOR INTERNAL PRACTICAL EXAMINATION TO BE CONDUCTED AT RESSIDENT SESSION.
2. ONE TEST OF 25 MARKS TO BE CONDUCTED AT RESIDENT SESSION AND MARKS TO BE SUBMITTED TO GPDL PUNE.
3. 240 HOURS FOR SELF STUDY AT HOME.
4. ALL PRACTICALS/ORAL EXAMS [EXTERNAL ASSESSMENT INDICATED BY #] TO BE CONDUCTED AT EXAM CENTRE.
5. ORAL EXAMINATION [INTERNAL ASSESSMENT @] TO BE CONDUCTED AT EXAM CENTRE.
6. INTERNAL ASSESSMENT @ OF TERM WORK WILL BE DONE AT RESIDENT SESSION.

MSBTE - Final Copy Dt. 01/07/2015 1 GPDL

w.e.f Academic Year 2012-13 ‘G’ Scheme

MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION, MUMBAI

TEACHING AND EXAMINATION SCHEME FOR POST S.S.C. DIPLOMA COURSES
COURSE NAME : DIPLOMA IN MECHANICAL ENGINEERING
COURSE CODE : MG
DURATION OF COURSE : 8 SEMESTERS WITH EFFECT FROM 2013-14
SEMESTER : EIGHT DURATION : 16 WEEKS
PATTERN : PART TIME - SEMESTER SCHEME : G
TEACHING EXAMINATION SCHEME
SR. Abbrev SUB SCHEME SW
SUBJECT TITLE PAPER TH (1) PR (4) OR (8) TW (9)
NO iation CODE (17908)
TH TU PR HRS. Max Min Max Min Max Min Max Min

1 Management MAN 21030 03 -- -- 1&½ 50#* 20 -- -- -- -- -- --

2 Design of Machine Elements DME 21038 04 -- 02 04 100 40 -- -- 25# 10 25@ 10
3 Elective (ANY ONE)
50
Refrigeration & Air
RAC 21039 03 -- 02 03 100 40 -- -- -- -- 25@ 10
Conditioning
Renewable Energy Sources &
RES 21040 03 -- 02 03 100 40 -- -- -- -- 25@ 10
Management
4 Project PRO 21041 -- -- 04 -- -- -- -- -- 50# 20 50@ 20
TOTAL 10 -- 08 -- 250 -- -- -- 75 -- 125 -- 50
Student Contact Hours Per Week: 18 Hrs.
THEORY AND PRACTICAL PERIODS OF 60 MINUTES EACH.
Total Marks : 500
@ - Internal Assessment, # - External Assessment, No Theory Examination, $ - Common to all branches
Abbreviations: TH-Theory, TU- Tutorial, PR-Practical, OR-Oral, TW- Term Work, SW- Sessional Work
 Conduct two class tests each of 25 marks for each theory subject. Sum of the total test marks of all subjects is to be converted out of 50 marks as
sessional work (SW).
 Progressive evaluation is to be done by subject teacher as per the prevailing curriculum implementation and assessment norms.
 Code number for TH, PR, OR, TW are to be given as suffix 1, 4, 8, 9 respectively to the subject code.

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w.e.f Academic Year 2012-13 ‘G’ Scheme

Course Name : All Branches of Diploma in Engineering & Technology

Course Code : CI/CC/EG/EC/CL/GC/MG/MC/IL/XC
Semester : Eight
Subject Title : Management
Subject Code : 21030

Teaching and Examination Scheme:

Teaching Scheme Examination Scheme

PAPER
TH TU PR TH PR OR TW TOTAL
HRS
03 -- -- 1&½ 50#* -- -- -- 50

NOTE:
 Two tests each of 25 marks to be conducted as per the schedule given by MSBTE.
 Total of tests marks for all theory subjects are to be converted out of 50 and to be
entered in mark sheet under the head Sessional Work (SW).

Rationale:
Management concepts are universal and it is a multidisciplinary subject. They are equally
applicable to different types industries like Manufacturing, Service and Trade as well as different
kind of business activities like industry, army, school, hospital, retail shops etc. Also, at the end of
diploma course polytechnic students are expected to enter in to the Industrial Environment. This
environment is altogether different and new to the students. A proper introduction and
understanding of management fundamentals is therefore essential for all these students.
Contents of the this subject will enable the students to address various issues related to
human resource, finance, materials, legislations etc. by use of basic principles of management. This
will ensure that students will play their role effectively to enhance the quality of business output in
total.

Objective:
The students will able to:
1. Get familiarized with environment related to business processes.
2. Know the management aspects of the organisations.
3. Understand Role & Responsibilities of a Diploma engineer.
4. Understand importance of quality improvement techniques.
5. Appreciate need and importance of safety in industries.
6. Understand process of Industrial finance and its management.
7. Know the latest trends in industrial management.

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Learning Structure:

 Use management functions &  Practice managerial traits.

techniques.  Know supervisory
 Realize importance of responsibilities, time
Application management process in management & productivity
Business.
 Describe Business scenario.

 Exposure to world of work  Review of Supervisory

 Information collection responsibilities
regarding government  Time Management
functions, rules and functions
Procedure regulations, regarding  Learning to learn
Business processes. management functions
 Case studies of management
functions.

 Globalization & WTO  Roll of supervisor

 Modern methods of  Managerial Traits
management  Government Rules &
Concepts
 Value addition by efficient Regulations and their
management. implications.

 Conventional Engineering &  Role and Opportunity for

Business opportunities technicians in Business
 Changing Role & nature of world.
Facts employment.  Responsibilities &
 Developments in functions of Expectations from
Business Management. Technicians in Business
Environment.

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Contents: Theory

Topic and contents Hours Marks

Topic 1: Overview of Business

Specific Objectives:
 State various business types and sectors
 Describe importance of globalisation
1.1. Types of Business
 Service
 Manufacturing
 Trade
1.2. Industrial sectors Introduction to
 Engineering industry 02 04
 Process industry
 Textile industry
 Chemical industry
 Agro industry
 IT industry
 Banking, Insurance, Retail, Hospitality, Health Care
1.3 Globalization
 Introduction
 Advantages & disadvantages with respect to India
Topic 2: Management Process

Specific Objectives:
 State various management principles
 Describe different management functions
2.1 What is Management?
 Evolution
 Various definitions of management
 Concept of management
 Levels of management 08 08
 Administration & management
 Scientific management by F.W.Taylor
2.2 Principles of Management (14 principles of Henry Fayol)
2.3 Functions of Management
 Planning
 Organizing
 Directing
 Controlling
 Decision Making
Topic 3: Organisational Management

Specific Objectives:
 Compare different forms of organisation , ownership for a specific
08 08
business
 Describe types of departmentation
3.1 Organization :
 Definition

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 Steps in organization
3.2 Types of organization
 Line
 Line & staff
 Functional
 Project
3.3 Departmentation
 By product
 By process
 By function
3.4 Principles of Organisation
 Authority & Responsibility
 Span of Control
 Effective Delegation
 Balance ,stability and flexibility
 Communication
3.5 Forms of ownership
 Proprietorship
 Partnership
 Joint stock
 Co-operative Society
 Govt. Sector
Topic 4: Industrial Safety and Legislative Acts

Specific Objectives:
 Describe types of accidents & safety measures
 State provisions of industrial acts.
4.1 Safety Management
 Causes of accidents
 Types of Industrial Accidents 08 06
 Preventive measures
 Safety procedures
4.2 Industrial Legislation - Necessity of Acts
Important Definitions & Main Provisions of following acts:
 Indian Factory Act
 Workman Compensation Act
 Minimum Wages Act
Topic 5: Financial Management (No Numerical)

Specific Objectives:
 Explain functions of financial management
 State the sources of finance & types of budgets.
 Describe concepts of direct & indirect taxes.
5.1 Financial Management- Objectives & Functions 08 08
5.2 Capital Generation & Management
 Types of Capitals - Fixed & Working
 Sources of raising Capital - Features of Short term, Medium Term &
Long Term Sources
5.3 Budgets and accounts
 Types of Budgets

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 Fixed & Variable Budget - Concept

 Production Budget - Sample format
 Labour Budget - Sample format
 Profit & Loss Account & Balance Sheet - Meaning, sample format,
meaning of different terms involved.
5.4 Meaning & Examples of -
 Excise Tax
 Service Tax
 Income Tax
 Value Added Tax
 Custom Duty
Topic 6: Materials Management (No Numerical)

Specific Objectives:
 Describe concept of inventory, ABC analysis & EOQ.
 Describe purchase functions & procedures
 State features of ERP & MRP
6.1 Inventory Concept, its classification, functions of inventory

6.2 ABC Analysis - Necessity & Steps 08 08

6.3 Economic Order Quantity Concept, graphical representation, determination
of EOQ
6.4 Standard steps in Purchasing
6.5 Modern Techniques of Material Management
 Material Resource Planning (MRP) - Functions of MRP, Input to MRP,
Benefits of MRP
 Enterprise Resource Planning (ERP) - Concept, list of modules,
advantages & disadvantages of ERP
Topic 7: Quality Management

Specific Objectives:
 State Principles of Quality Management
 Describe Modern Technique & Systems of Quality Management
7.1 Meaning of Quality
Quality Management System – Activities, Benefits
Quality Control - Objectives, Functions, Advantages 06 08
Quality Circle - Concept, Characteristics & Objectives
Quality Assurance – Concept, Quality Assurance System
7.2 Meaning of Total Quality and TQM
Components of TQM – Concept, Elements of TQM, Benefits
7.3 Modern Technique & Systems of Quality Management like Kaizen,5’S’,6
Sigma
7.4 ISO 9001:2000 - Benefits, Main clauses.
Total 48 50

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Learning Resources:
Books:

Sr.
Author Name of Book Publisher
No
Dhanpat Rai & Sons New
01 Dr. O.P. Khanna Industrial Engineering & Management
Delhi

02 Banga & Sharma Industrial Engineering & Management Khanna Publication

Business Administration &

03 Dr. S.C. Saksena Sahitya Bhavan Agra
Management
W.H. Newman
04 E. Kirby Warren The process of Management Prentice- Hall
Andrew R. McGill

E Source:

nptel.iitm.ac.in
http://iete-elan.ac.in/subjects/amIndustrialMgmt.htm

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Course Name : Diploma in Mechanical Engineering

Course Code : MG / MC
Semester : Eight
Subject Title : Design of machine Elements
Subject Code : 21038

Teaching and Examination Scheme:

Teaching Scheme Examination Scheme

PAPER
TH TU PR TH PR OR TW TOTAL
HRS.
04 -- 02 04 100 -- 25# 25@ 150

0NOTE:
 Two tests each of 25 marks to be conducted as per the schedule given by MSBTE.
 Total of tests marks for all theory subjects are to be converted out of 50 and to be
entered in mark sheet under the head Sessional Work (SW).

Rationale:
It is an applied technology subject. A diploma holder in mechanical discipline, is expected
to design and draw simple machine components used in industries. Fundamental knowledge of
Applied Mechanics, Strength of Materials, Engineering Materials and Theory of Machines is
essential. Subject aims at developing analytical abilities to give solutions to engineering design
problems.

Objectives:
The student will be able to:
1. Analyze the various modes of failure of machine components under different load
patterns.
2. Design and prepare part and assembly drawings.
3. Use design data books and different codes of design.
4. Select standard components with their specifications from manufacturer’s catalogue.
5. Develop drawings on CAD software.

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Learning Structure:

To design and draw different machine elements and their

Application: assemblies from strength, Ergonomic, aesthetic, maintenance
and economic consideration

Analysis of forces & stresses, identification of areas of

Procedures: failure, use of standards, applying strength and empirical
relations to design process

Modes of failures, Theories of failure, Ergonomics and

Principles: Aesthetics

Stress, Strain, bending moment, torque, principal stresses,

Concept: factor of safety, stress concentration, fatigue, endurance limit,
creep, Friction

Cotter and Knuckle joints, Turnbuckle, C-Clamp frame,

Facts: Pulleys, Shafts, Keys and Couplings, Screws, Bearings,
Levers, fasteners, springs.

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Contents: Theory

Topic and content Hours Marks

Topic 1: Introduction to Design
Specific Objectives:
 State the need for the design
 List all parameters related to design
 Apply basic concepts in design procedure

1.1 Basic Design Considerations 04 Marks

 Design philosophy and Procedures
 General Considerations in Design
 Types of loads, concepts of stress ,strain, Stress – Strain Diagram for
Ductile and Brittle Materials, Types of Stresses such as Tension,
Compression, Shear, Bearing pressure
Intensity, crushing, bending and torsion, Principle Stresses (Simple
Numericals)
 Concept of Creep, Fatigue, S-N curve, Endurance Limit.
12 20
1.2 Factors in Design 04 Marks
 Factor of Safety and Factors affecting its selection
 Stress Concentration – Causes & Remedies
 Converting actual load or torque into design load/torque using design
factors
1.3 Properties of Engineering materials 04 Marks
 Designation of materials as per IS and introduction to International
standards, advantages of standardization, use of design data book, use
of standards in design and preferred numbers series.
1.4 Theories of Elastic Failures 04 Marks
 Principal normal stress theory, Maximum shear stress theory &
maximum distortion energy theory.
1.5 Modern Design considerations 04 Marks
 Design for safety, Ecology, societal consideration & Concept of
Product Design, System Design & Creativity in Design, Ergonomics
and aesthetic considerations in design
Topic 2: Design of Joints, Levers & Offset Links
Specific Objectives:
 Design a joint for a given load to be transmitted
 Calculate dimensions of lever/link using allowable bending and shear
stress
08 12
2.1 Design of Cotter Joint, Knuckle Joint, Turnbuckle 06 Marks
2.2 Design of Levers:- Hand/Foot Lever & Bell Crank Lever, 06 Marks
Lever for lever safety valve, Design of Off-set links, C - Clamp,
Overhang Crank.

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Topic 3. Design of Shafts, Keys and Couplings

Specific Objectives:
 Design the diameter of a shaft on the basis of equivalent
twisting/bending moment and allowable shear stress
 Design the section of most commonly used rectangular key on the
basis of torque transmitted, allowable shear stress and crushing stress
 Design a rigid/flexible coupling for connecting two shaft on the basis
of torque and allowable shear stress
 Design spur gear by taking into account effective tooth load

3.1 Design of shaft 06 Marks

 Types of Shafts, Shaft materials, Standard Sizes,
 Design of shafts (Hollow and Solid) using strength and rigidity
criteria,
 ASME code of design for line shafts supported between bearings with 14 24
one or two pulleys in between or one overhung pulley
3.2 Design of key 04 Marks
 Types of keys
 Design of rectangular, parallel sunk keys,
 Effect of Keyways on strength of shaft.
3.3 Design of Couplings 06 Marks
 Flanged couplings – unprotected and protected types
 Bush-pin type flexible coupling.
3.4 Design of spur gear 08 Marks
 Lewis equation for static beam strength of spur gear teeth
 Power transmission capacity of spur gears in bending
 Gear tooth failure modes – Scoring, scuffing Pitting & Teeth
Breakage
Topic 4: Design of Power Screws
Specific Objectives:
 Draw the different thread profiles used in power screws and state their
merits and demerits
 Bring out the difference between self locking and overhauling
 Design the screw jack/toggle jack under a given loading conditions.
4.1 Basic concepts 10 12
Thread Profiles used for power Screws, relative merits and demerits of
each, Self locking and overhauling properties
Torque required to overcome thread friction, efficiency of power
screws, types of stresses induced. 06 Marks
4.2 Design of Screw Jack, Toggle Jack (only screw and nut). 06 Marks

Topic 5: Design of springs

Specific Objectives:
 Classify the springs on the basis of different criteria
 Design Helical spring based on given load conditions
5.1 Classification and Applications of Springs, Spring - terminology,
08 12
materials specifications. Stresses in helical tension and compression
springs, Wahl’s correction factor, Deflection of springs, Energy stored in
springs. 04 Marks
5.2 Design of Helical tension and compression springs subjected to concentric
applied loads like I.C. engine valves, weighing balance, railway buffers

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and governor springs. 06 Marks

5.3 Leaf springs - construction and applications 02 Marks
Topic 6: Design of Threaded and Welded Joints
Specific Objectives:
 State the applications of fasteners
 Design threaded/welded joints under different load conditions
08 12
6.1 Stresses in Screwed fasteners, bolts of Uniform Strength, Design of
Bolted Joints subjected to eccentric loading. 06 Marks
6.2 Design of parallel and transverse fillet welds, axially loaded symmetrical
section, Merits and demerits of screwed and welded joint 06 Marks
Topic 7: Antifriction Bearings
Specific Objectives:
 Classify the bearings
 Select rolling bearings, for specific applications, using manufacturers
catalogue. 04 08
Classification of Bearings – Sliding contact & rolling contact.
Terminology of Ball bearings – life load relationship, basic static load
rating and basic dynamic load rating, limiting speed. Selection of ball
bearings using manufacturer’s catalogue.
Total 64 100

Skills to be developed in Practicals

Intellectual Skills:
1. Understand the basic philosophy and fundamentals of Machine Design.
2. Apply and use the basic knowledge of earlier subjects like mechanical Engineering
materials, strength of materials and theory of machines.
3. Analyze and evaluate the loads, forces, stresses involved in components and subassemblies
and decide the dimensions.
4. Understand the modes of failures of m/c components and decide the design criteria and
equations.
5. Understand the concept of standardization and selecting standard components.
6. Understand the methods of computer aided design practices.
7. Use of different design data books and IS codes.

Motor Skills:
1. Draw the components assembly as per the designed dimensions.
2. Modify drawings and design as per requirement.
3. Use the different design software.

List of Practicals:
1. Analyse the various modes of failure of machine components under different load patterns
2. Understand different codes used for design of machine elements.
3. Select the material for given applications using design data book.
4. Design and draw mechanical joints for given load.
5. Design and draw mechanical levers for given load.
6. Design project - 1
Design and prepare the drawing on drawing sheet of transmission systemby observing
transmission of power through shaft, keys, coupling, pulley and belt drive etc.
7. Design project - 2

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Design and prepare the CAD drawing of transmission system by observing transmission of
power through Power screw.
8. Design of springs.
9. Design of fasteners.

Learning Resources:
1. Books:

Sr.
Title Author Edition Publisher
No.
1 Machine Design RS Khurmi and Gupta 14th S. Chand
2 Machine Design VB Bhandari 3rd Tata McGraw Hill
3 Machine Design U C Jindal 2 reprint Pearson Education India
Mechanical Engg. Richard G Budynas,J.
4 9th Tata McGraw Hill
Design Keith Nisbett
Theory and problems of Hall,Holowenko, Reprint
5 McGraw Hill
Machine Design Laughlin 2005
PSG College of
6 Design Data Book PSG 8th
Technology Coimbatore
Fundamentals of
Robert C.Juvinall
7 Machine Components 3rd Wiley India Edition
Kurt M Marshek
Design

2. IS Codes:
1) IS 4218: 1967 ISO Metric Threads
2) IS 2693: 1964 Cast Iron Flexible Couplings
3) IS 2292: 1963 Taper keys & Keyways
4) IS 2293: 1963 Gib Head Keys & Keyways
5) IS 2389: 1963 Bolts, Screws, Nuts & Lock Nuts
6) IS 4694: 1968 Square threads
7) IS 808: 1967 Structural Steel
8) SKF Catalogue for Bearings

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Course Name : Diploma in Mechanical Engineering

Course code : MG / MC
Semester : Eight
Subject Title : Refrigeration & Air Conditioning (Elective)
Subject Code : 21039

Teaching and Examination Scheme

Teaching Scheme Examination Scheme

PAPER
TH TU PR TH PR OR TW TOTAL
HRS
03 -- 02 03 100 -- -- 25@ 125

NOTE:
 Two tests each of 25 marks to be conducted as per the schedule given by MSBTE.
 Total of tests marks for all theory subjects are to be converted out of 50 and to be
entered in mark sheet under the head Sessional Work (SW).

Rationale:
Refrigeration & Air conditioning has a wide application in varied areas of domestic,
commercial and industrial applications. With advance in technology & development of new
Refrigerants. Refrigeration & Air conditioning finds prominent positions from house hold
applications like refrigerators, air conditioners to advance cryogenic systems maintaining subzero
temperatures in industrial and Research areas. Air conditioning of building, industries, malls has
also emerged as one of the most advanced areas of applications in this field. This field has a unique
application potential in every sector. Refrigeration & Air conditioning is one of the most demanded
job areas for diploma Engineers with a good scope for the self employment. Considering this,
diploma Engineers should study and practically learn this subject in detail. They must know
fundamentals, processes, system and applications of Refrigeration & Air conditioning. Practical
skills in this areas like maintenances, fault handlings & repairs must also be acquired by diploma
Engineers.

General objectives: After learning of this subject students should be able to

1) Compare various types Refrigeration cycles
2) List various properties of different refrigerants and appreciate applications of Refrigerants
with their ill effects on environment.
3) Identity various compartment & controls used in Refrigeration & Air Conditioning practice.
4) Able to assemble, dismantle the components of refrigeration systems along with trouble
shoot the refrigeration systems

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5) Explain Psychometric properties and calculate various parameters

6) Explain various air conditioning systems of their applications.
7) Identify & locate different components of air conditioning & distribution systems.

Learning Structure:

Understand & analyze the concepts of RAC with the view of

Application: operating, trouble shooting of regularly maintaining related
devices & systems in actual practice.

Identify, Analyze & operate Identify, Analyze, operate,

devices & systems like trouble shoot the Air
Procedures: refrigerators, chillers, water conditioning systems like
coolers, ice plants, cold window, split, packaged air
storages conditioners, central systems

Refrigerant, Vapour Processes of air

compression Cycle, Vapor conditioning, Air
Principles: absorption cycle, Actual conditioning and air
VAC Cycle. distribution systems.

Ton of Refrigeration EER, Moist Air, Dry Air, WBT,

COP, Methods of DBT, DPT, humidity,
Concept: Refrigeration. Relative humidity,Absolute
Humidity

Window Air Conditioners, Split Air conditioners, Water

Facts: Coolers, packaged & Centralize conditioners, Car and bus air
conditioners, industrial air conditioning systems.

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Theory:

Topic & Content Hours Marks

Topic 1. Introduction to Refrigeration
Specific Objectives:
 Define various terms related to refrigeration
 Explain various refrigeration cycles
 Explain properties and environmental effects of refrigerants
Contents:

1.1 Introduction 06 Marks

Definition, Necessity of refrigeration, Concept of heat engine, heat
pump and Refrigerator, Unit of refrigeration, C.O.P., EER and
refrigerating effect, Non conventional methods of refrigeration like
Vortex tube, Pulse tube refrigeration, solar refrigeration
08 18
1.2 Refrigerants: 06 Marks
Classification, Desirable Properties, selection& Nomenclature of
refrigerants. Concept of Green House Effect, Ozone Depletion,
Global warming. Concept of Ozone Depletion Potential (ODP) &
Global Warming Potential (GWP) of different Refrigerants.
Eco-friendly refrigerants like R-134a,Hydrocarbon refrigerants

1.3 Refrigeration Cycles 06 Marks

 Reversed Carnot Cycle and its representation on PV and TS diagram.
 Air Refrigeration Cycles - Bell Coleman air refrigerator
 Representation on PV and TS diagram, Types and applications like
aircraft refrigeration using simple air cooling system.
Topic 2. Vapour Compression and Absorption Systems
Specific Objectives:
 Describe vapor compression and absorption systems.
 Calculate different parameters of vapor compression systems
Contents:

 Vapor Compression Cycle - Principle, components, Representation

on P-H and T-S diagram, Effects of wet compression, dry
compression. 06 Marks 08 18
 Calculation of COP, Effect of superheating, under cooling, suction
pressure and discharge pressure, Actual V.C.C., (simple numerical),
Methods of improving COP (No Numericals). Introduction to
multistage V.C.C., its necessity, advantages. 06 Marks
 Vapor Absorption system-Principle, components and working of
aqua- ammonia system (simple & practical), Li-Br Absorption
System, Electrolux Refrigeration System (No Numericals)
Comparison of above Refrigeration Cycles. 06 Marks
Topic 3. Refrigeration System Equipments
Specific Objectives:
 Identify refrigeration equipments in view of classification,
08 16
construction and operation.
 List criterions of selection of equipments for various refrigeration
systems

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Contents:

3.1 Compressors: Classification, Construction and working of open type,

Hermetic, centrifugal, rotary, screw and scroll compressor and their
applications. Compressor for car air-conditioning system (Wobble
plate type) 04 Marks
3.2 Condensers: Classification Description of air cooled and water cooled
condensers, Comparison and applications, Evaporative condensers
04 Marks
3.3 Expansion devices: Capillary tube, Automatic exp valve, Thermostatic
exp. valve, Applications 04 Marks
3.4 Evaporators and chillers: Classification of evaporators, Construction
and working of Bare tube, Plate surface, finned, shell and tube, flooded
and dry expansion evaporator, Capacity of evaporator and their
applications, Classification of chillers Construction and working of dry
expansion Chillers, flooded chillers and their applications.
04 Marks
Topic 4. Psychrometry
Specific Objectives:
 Define Psychrometric properties and draw processes
Solve the problems with Psychrometric chart
 Understand Details of equipments used in air conditioning
Contents:
4.1 Definition and necessity of air Conditioning, Properties of Air,
Dalton’s law of partial pressure, Psychrometric chart,
Psychrometric processes, Bypass Factor, ADP, concept of SHF, 08 16
RSHF, Adiabatic mixing of Air Streams, Simple numericals using
Psychrometric Chart 08 Marks

4.2 Air- conditioning Equipments: 08 Marks

 Humidifier dehumidifier, filters,
 Heating and cooling coils.
 Air washers
Topic 5. Comfort Conditions and Cooling Load Calculations
Specific Objectives:
 Explain basic concepts of comfort conditions and cooling load
calculations
Contents:
04 08
5.1 Thermal exchange of body with environment, Factors affecting human
comfort, Effective temp.
5.2 Components of cooling load- sensible heat gain and latent heat
gain sources
5.3 Calculation of cooling load of given area.
Topic 6. Air Conditioning & Air Distribution Systems
Specific Objectives:
 Identify various air conditioning systems
Contents:
08 16
6.1 Classification of systems: 06 Marks
 Industrial and commercial Air Conditioning Systems
 Summer, winter and year round Systems

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 Central and unitary air conditioning systems

6.2 Air distribution systems 06 Marks

 Duct systems: Closed perimeter system, extended plenum system,
Radial duct system, duct materials, requirement of duct materials,
losses in ducts

 Fans and Blowers- Types, working of fans and blowers , Air

distribution outlets, Supply outlets, return outlets, grills, and types
of diffusers
6.3 Insulation: Purpose, properties of insulating material, Types of
insulating materials, Methods of applying insulation. 04 Marks
Topic 7. Applications of Refrigeration and Air Conditioning Systems:
08 Marks
Specific Objectives:
 Explain various Refrigeration and Air Conditioning systems.
Contents:
Applications of refrigeration and air conditioning in following areas: 04 08
 Domestic Applications
 Commercial Applications
 Industrial Applications
 Automobile Air conditioning systems
Total 48 100

Practical:
Skills to be developed:

Intellectual Skills:
1. Identify various components of refrigeration and air conditioning equipment.
2. Analyse cooling load based on application.
3. Interpret psychometric chart to find various properties of air.

Motor Skills:
1. Handle various tools used for refrigeration and air conditioning plant Maintenance.
2. Dismantle and assemble Refrigeration compressor and components.
3. Use of temperature, pressure, energy measuring devices.
4. Draw the layout of central Air conditioning plant.
5. Conduct trial on Test rigs.

List of Practicals:
Instructions to Teachers: While conducting experiments, group of 4 – 5 students should be
formed. For industrial visits group size be limited to 8 -10 students at a time.

1. Identification, Location of components on various refrigeration systems like House hold

refrigerator, Window air conditioner, Split Air conditioner, Water Cooler, Deep freezer and
controls used.(Concept of EER and star rating to be emphasized in relation with these
equipments). Draw the block diagrams to show location of components and label them.

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2. Demonstration of various Valves, controls like, solenoid valve, Thermostatic Expansion

valve, capillary, L.P./H.P. cut outs, thermostats, overload protectors, Gauges used in RAC
systems.
3. Trial on Vapor Compression cycle test rig to find COP.
4. Trial on Ice Plant test rig.
5. Visit to cold storage plant / Ice cream Manufacturing plant/ Ice plant and write a brief report.
6. Calculation of Relative Humidity in the area with help of Sling Psychrometer and
Psychometric Chart
7. Trial on Air conditioning test rig.
8. Dismantling and assembling of hermatically sealed compressor (To be performed by group
of 4 -5 student)
9. Dismantling and assembling of Reciprocating refrigeration compressor. (Batch size of
students should be 4-5 in a group)
10. Dismantling and assembling of Car Air-conditioning compressor. (Batch size of students
should be 4-5 in a group)
11. Visit to repair and maintenance workshop of Refrigeration & Air conditioning in view of
use of various tools and charging procedure and write a brief report.
OR
Visit to central A.C. plant in view of ducting system, insulation system and Air Distribution
system (e.g. frozen food industry / ice- cream industry/mushroom plants / textile industries).
12. Trouble shooting chart of domestic refrigerator, window air- Conditioner, Water cooler,
Automobile air conditioning systems (any two)
(It is recommended that the teacher should introduce manufacturers catalogues of
RAC equipments to the students during practical periods)

Assignments:-
1. Detailed information search on “Green House Effect” and “Ozone layer depletion” and “Eco
friendly Refrigerents”
2. Study of Air conditioning system of a Car or Bus by practically observing system in view of
identification of components, circuits, Type of refrigerants , Capacity and various controls
used in system. Write a brief report.
3. Cooling load calculations for cabin, classroom, laboratory, canteen and dairy Plant, milk
storage, small freezers (minimum one).

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Learning Resources:
1. Books:

Sr.
Title Author Edition Publisher
No.
Refrigeration and Air
01 Arora 3rd Edition Tata McGraw Hill
Conditioning
Refrigeration and Air R.S.Khurmi
02 Recent S. Chand and Co.
Conditioning
Refrigeration and Air
03 P. N. Ananthanarayanan 1st Edition Tata McGraw Hill
Conditioning
Refrigeration and Air New Age
04 Manohar Prasad 2009
Conditioning Publications
Principles of
05 Roy Dossat 4TH Pearson Education
Refrigeration
Refrigeration and Air
06 Ballany 2009 Dhanpat rai & sons
Conditioning

2. CDs, PPTs, Video Clips on refrigeration and air conditioning systems. Video clips on working of
refrigeration and air conditioning systems, working of compressors, vapour absorption systems,
alternative refrigerants.

3. ISO, IS, BS Codes on components of refrigeration and air conditioning systems. ASHRAE
codes.

4. Charts, Models, Transparencies on Refrigeration and air conditioning.

5. Websites: Carrier corporation, Voltas, Usha, Fedders Loyd, Hitachi, Du-Pond, Tata Mac graw
hill (student section) for refrigeration and air conditioning products.

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Course Name : Diploma in Mechanical Engineering

Course code : MG / MC
Semester : Eight
Subject Title : Renewable Energy Sources & Management (Elective)
Subject Code : 21040

Teaching and Examination Scheme

Teaching Scheme Examination Scheme

PAPER
TH TU PR TH PR OR TW TOTAL
HRS
03 -- 02 03 100 -- -- 25@ 125

NOTE:
 Two tests each of 25 marks to be conducted as per the schedule given by MSBTE.
 Total of tests marks for all theory subjects are to be converted out of 50 and to be
entered in mark sheet under the head Sessional Work (SW).

Rationale:
Energy is an important aspect in all sectors of country’s economy. India as a country suffers
from significant energy deficiency. The per-capita energy consumption, while increasing
progressively, is significantly below global averages and in many instances below developing
country averages. Increasing energy demands, shortage of fossil fuels, and the continuous increase
in the level of green house gas emissions are the main driving forces to utilize various sources of
renewable energy. The subject aims at enabling the students to know the basics of renewable
energy, energy conversion, conservation, management techniques, energy audit and methodology.

General Objectives:
Student will be able to
1. Appreciate the need and importance of renewable energy
2. Analyze various Biomass Conversion processes.
3. Judge the Energy Saving Potential, Waste Heat Recovery, Energy Efficiency.
4. Understand the methodologies to execute preliminary energy audit.

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Learning Structure:

To understand, analyze and identify the various renewable energy

sources, in view of energy consumption and to get familiar with
Application energy management by understanding methodologies such as
energy audit, waste heat recovery, etc.

Acquaintance with component selection for system design for

energy sources like solar energy. Analyze and understand the
procedure to perform energy audit, energy conversion and waste
Procedure heat recovery. To perform energy audit for given specific system.To
develop and identify scope of renewable energy sources. To predict
an estimate of power developed for given application.

Principles of Energy conversion, Solar Thermal, Solar Photovoltaic

Principle of energy conservation, wind energy, Hydropower,
Principles
Biomass

Solar constant, solar radiation, temperature, velocity, wind power,

calorific value, energy conservation, waste heat recovery, thermal
insulation.Energy, lift, drag, wind power, power coefficient, tip
Concepts speed ratio, low head, high head, biofuel, global warming, ozone,
Green house gases.

Sun, solar collector, solar cells, solar cooker, wind-turbine,

generator, battery, digester, gasifies, Energy measuring instruments,
Facts Pattern of Energy conversion for domestic, transport, Industry and
agriculture.

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Theory:

Topic & Content Hours Marks

Topic 1: Introduction – Renewable Energy
Specific Objective
 Understand need of renewable energy
 Know the effect of use of fossil fuel on climate change and global
warming
 Identify various renewable energy sources
Contents:
1.1 Need of Renewable Energy 04 Marks
Non renewable Energy sources - Fossil Fuels: Coal, Oil, Natural gas,
Tar sands and Oil shale
 Climate Change - Green House Gases, Global Warming
 Sustainable growth
 Present Energy Scenario: Global and Indian
 Pattern of Energy Consumption.
 Different types of Energy and its utilization.
1.2 Renewable Energy Sources: Classification and Introduction 08 Marks
 Solar Energy - Direct Uses 07 16
 Solar Thermal
 Solar Photovoltaic
 Solar Energy - Indirect Uses
 Hydro-Power
 Wind Power
 Bio-Energy
 Wave Power
 Non-Solar Renewable Energy
 Tidal Energy
 Geothermal Energy.
1.3 Energy Storage Management 04 Marks
 Thermal Storage-sensible and latent its comparison
 Electrical Storage: Introduction to battery, super capacitor, and
fuel cell.
Topic 2. Solar Energy – Direct Uses
Specific Objective
 State the concept of solar radiation
 Describe the working principle of solar thermal systems
 Compare different solar photovoltaic system
Contents:
2.1 Solar Radiation 08 Marks
 Sun & Earth 15 28
 Solar Spectrum
 Sun & Earth Movement
 Solar Geometry: Concept
2.2 Solar Thermal Applications & Its working Principles 04 Marks
 Water Heating
 Space Heating

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 Space Cooling and Refrigeration

 Power Generation
 Distillation
1.3 Construction Details containing capacity, size and materials of: 06 Marks
 Solar Flat Plate Collector
 Solar Evacuated Flat plate Collector
 Solar Concentrating Collector
 Solar Cooker - Box and Concentrating
 Solar Drying
2.4 Solar Photovoltaic Conversions: Principle of working of Solar cell
10 Marks
 Construction Details containing capacity, size & materials of
Solar Photovoltaic System Applications- Solar Lantern, Solar
Home System, SPV Street Light, SPV Traffic Signal, Info -
display, SPV Power Pack, Stand alone SPV Power Plant, Solar
Generators, Building Integrated PV Systems, SPV Pumping
Systems (No derivations & numericals)
Topic 3. Solar Energy - Indirect Uses - I
Specific Objective
 Know the site selection criteria for wind and hydro plant
 Classify small hydro plants
 Identify component of Horizontal Axis Wind Turbine
Contents:
3.1 Hydro-Power 12 Marks
 Site Selection
 Different Components of Small Hydroelectric Projects 08 20
 Types of Turbine – Francis, Propellor
 Classification of Small Hydro-electric Plants: Ultra low head, Low
head, Medium/high head, Micro hydro, Mini hydro, Small hydro
3.2 Wind Power 08 Marks
 Concepts- Wind Energy Conversion, Lift and Drag,
 Classification and Description
 Components of Power Generating Horizontal Axis Wind Turbine
 Site Selection Criteria.
Topic 4. Solar Energy – Indirect Uses - II
Specific Objective
 State the site selection criteria for wind and hydro plant
 Compare bio fuels
Contents:
4.1 Bio-Energy -Photosynthesis and Carbon Cycle Concept. 08 Marks
 Bio energy Sources – Types Such as
 Energy Plantation
10 16
 Agricultural Crops
 Wood Residues
 Animal Waste
 Municipal Solid Waste
 Landfill Gas
 Commercial and Industrial Waste
4.2 Biomass Conversion Routes- Thermo chemical Route and Biochemical
Route 04 Marks

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 Combustion
 Gasification
 Pyrolysis
 Anaerobic digestion
 Fermentation
4.3 Bio fuels from Bio-Mass 04 Marks
 Bioethnol
 BioDiesel
 Biogas
 Algae- A new biomass
Topic 5: Energy Management
Specific Objective
 Describe the methodology of execute preliminary energy audit
 Judge the energy saving potential, waste heat recovery, energy effect
 State the use of different energy measuring instruments
Contents:
5.1 Definition, Objectives & Need of Energy Audit 06 Marks
 Energy Audit: Types And Methodology
 Preliminary Energy Audit Methodology
5.2 Energy Measurement and Instruments 08 Marks
 Lux meters:
 Pyranometer,
 Sunshine Recorder
 Pyrheliometer
 Combustion analyzer: 08 20
 Fuel Efficiency Monitor:
 Fyrite
 Contact thermometer:
 Infrared Thermometer:
 Pitot Tube and manometer:
 Water flow meter:
 Speed Measurements:
 Leak Detectors:
 Hand held meters and Power Analyzer to measure electrical
parameters such as kVA, kW, PF, Hertz, kVAr, Amps and Volts.
5.3 Energy Conservation 06 Marks
 Energy Efficiency - Boiler & Furnace Efficiency
 Waste Heat Recovery Systems
 Energy Loss Prevention - Thermal Insulation
Total 48 100

Note: Subject teachers are expected to give relevant information briefly on each of the above
topic without analytical treatment.

Practicals:
Intellectual skills:
1) To identify concept, parts of devices etc.
2) To understand the construction and working principle of Renewable energy systems.
3) To know function, classification and discrimination of parts or equipments.

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4) To know test procedure. Calculate and interpret test result.

5) To observe the faults and suggest the remedial action for repair and performance
improvement.

Motor Skills:
1) Ability to observe / locate / operate various parts of instruments / equipments / tools.
2) Ability to accurately measure the various parameters.
3) Ability to follow the systematic procedure.
4) Ability to handle data and draw graphs.

List of Practical
Sr.
Name of Practical
No.
Collect information about global and Indian energy market from websites and prepare write
1.
up
Visit to a commercial or Industrial Solar water heating Installation of atleast 500 liters per
2. day capacity. Writing a report about collector layout, piping and fittings and measurement
of performance of the system.
Performance measurement of photovoltaic array used for an application such as pumping,
3.
home lighting etc. making use of energy instruments.
4. Visit to or study of a Small Hydraulic Power plant.
Performance estimation and comparison of different collector technologies used for hot
5. water generation such as evacuated tube, flat plate collector, dish collector etc. on the
experimental set up installed in the laboratory.
Study construction and working of horizontal axis wind mill or to visit a nearest wind farm
6.
and write a report.
Visits to a biogas plant or biomass gasification facility. Writing a report on plant structural
7.
details and components. Measurement of performance.

Practical study of energy audit instruments used for measurement of electric energy,
8.
temperature, flow, exhaust gas analysis etc.
Conducting walk through energy audit of a small establishment such as
9.
workshop/Office/Home/SSI unit.

Learning Resources:
1. Books:

Sr.
Author Title Publisher / Edition
No.
Renewable Energy: Power For A
1 Boyle Godfrey Oxford University Press
Sustainable Future
3rd Edition, Tata McGraw
Solar energy, Principles of Thermal
2 S. P. Sukhatme
Collection & Storage Hill
2nd Edition, McGraw Hill
3 B. H. Khan Non-Conventional Energy Resources
Companies
Solar Photovoltaics Fundamentals PHI Learning private ltd N.
4 Chetan Singh Solanki
Technologies and Applications Delhi

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5 G. D. Rai Non conventional energy sources Khanna publication

Guide Book for National

Certification for Energy Managers
Bureau of Energy and
6 --- and Energy Auditors, Book 1 –
Efficiency (BEE)
General Aspects of Energy
Management and Energy Audit

2. CD’s / PPT’s etc.:

1. CDs developed by Maharashtra Energy Development Agency (MEDA), Pune.
(www.mahaurja.com)
2. Dr. Govind N. Kulkarni, Documentary (DVD), Solar Energy - An Awakening, Usha
Solar

3. Websites
1. Website of Bureau of Energy and Efficiency. (www.bee-india.nic.in)
2. Website of Mahaurja- (www.mahaurja.com)
3. Energy management (www.energymanagertraining.com)
4.www.bp.com

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Course Name : Diploma in Mechanical Engineering

Course code : MG / MC
Semester : Eight
Subject Title : Project
Subject Code : 21041

Teaching and Examination Scheme:

Teaching Scheme Examination Scheme

PAPER
TH TU PR TH PR OR TW TOTAL
HRS
-- -- 04 -- -- -- 50# 50@ 100

Rationale:
Project work allows students to use their creative and innovative ideas translating in
working model, prototypes, and equipments and developing necessary hands on skills. This will
allow the students to apply the previous knowledge and skills acquired during the course.

General Objectives:
The student will be able to:
1. Analyze the given problem.
2. Generate alternative solutions to the problem.
3. Compare & select feasible solutions amongst alternative generated.
4. Develop and manufacture new/modified equipments.
5. Acquire technical knowledge beyond curriculum.

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Learning Structure:

Application  To conceive, plan, Design and develop a project through time tested

procedures with aim to find useful solution using creative and innovative

 Design procedure  Need Identification

 Manufacturing Process  Literature survey

Procedure
 Planning  Feasibility Study

 Design  Need survey

 Costing  Project Identification

Concept
 Planning  Feasibility

 Plant  Tools

Facts  Product  Drawing

 Material  Component

 Equipment  Machinery

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Content:
Following activities related to project are required to be dealt with, during this semester
1. The Selection and preliminary work regarding Project to be done as per directives given in
PROFESSIONAL PRACTICES – V Curriculum.
2. The identified projects be executed during the semester as per the Guidance from the project
Guide by the group of students (Group size max. 4 students).
3. Maintain the project diary individually for the activities performed in the format specified
below.

Project Diary format:

Sr.
Date Activity Carried out Remarks Signature of Guide
No.

SUGGESTED PROJECT WORK AREAS

1) Fabrication of small machine / devices/ test rigs/ material handling devices/ jig & fixtures/
demonstration models, etc.
2) Design & fabrication of mechanisms, machines, Devices, etc.
3) Development of computer program for designing and /or drawing of machine
components, Simulation of movement & operation, 3D modeling, pick & place robots
4) Industry sponsored projects- project related with solving the problems identified by
Industry should be selected. (One person from industry is expected to work as co- guide
along with guide from institution).
5) Literature survey based projects: Project related with collection, tabulation, classification,
analysis & presentation of the information. Topic selected must be related with latest
technological developments in mechanical field, and preferably beyond curriculum.
6) Modification in the existing machinery / equipment for improved performance.
7) Maintenance based projects.
8) Industrial engineering based project: Project based on work study, method study, methods
improvement, leading to productivity improvement.
9) Low cost automation projects.
10) Innovative/ Creative projects involving generation of new ideas and converting it into a
model, gadget.
11) Market survey based projects.
12) Project based on use of appropriate technology particularly benefiting rural society or
economically weaker section.
13) Equivalent level project can be selected from other than the area specified above.

Note:
Project should provide viable and feasible solution to the problem identified.
Report should be of 40TO 50 pages.
Font size of project report contents be as follows:
1. Main title: 16 bold Times new roman
2. Sub titles: 14 bold Times new roman
3. Running matter: 12 Times new roman, paragraph 1.5 line spacing,
4. Margin spacing 1.5 inch from left and 1 inch from other sides.

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Preferably actual photographs / video clips showing progress of project work at different
stages be added to project report).
Suggested framework for the project report:

The topics/ contents of the project report should be as follows:-

 Abstract
 Topic introduction/ Philosophy
 Literature Survey/ Methodology adopted
 Principle (aim objectives of the Project work)
 Data collection/ Design consideration/Basic Framework/Design / Drawing
 Manufacturing Processes and Process Sheets (if relevant)
 Assembly (if relevant)
 Performance / Calculations etc (If relevant)
 Costing
 Results and Discussion
 Conclusion
 Future Scope
 Bibliography/ References

Learning Resources:
Reference Books:

Sr.
Name of Book Author Publisher
No.
1 Project Management Maylor Pearson Education

Project Management And

2 Khatua Oxford University Press
Appraisal
3 Project Management/2/e Bhavesh Patel Vikas Publishing House

4 Project Management 3/e Vasant Desai Himalaya Publishing House

Project Management
5 Gray TMH
The Managerial Approach

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