Syllabus for RAC Sem-1

SCHEME OF EXAMINATION And SYLLABUS For
CERTIFATE & DIPLOMA In RAC 1st SEMESTER

SCHEME OF STUDIES & EXAMINATIONS
DIPLOMA COURSE (SEMESTER – I) RAC

Course NO. Course Title Teaching Schedule per Week Marks for Sessionals Marks for End Term Examinations Total Marks Credits
Lectures Practical Total Theory Practical
EL- 101 Engineering Science I   3   0   3   25   75     100   3
EL- 104 Industrial Safety I   3   0   3   25   75     100   3
EL- 103 Communication Skills-I   3   0   3   25   75     100   3
EL- 102 Engineering Calculations   3   0   3   25   75     100   3
  EL- 105 Fundamental of computers     3     0     3     25     75       100     3
  RAC- 101 Basics of Refrigeration & Air Conditioning-I     0     3     3     25     75       100     3
EL- 107 Engineering Drawing I   0   3   3   25   75     100   3
RAC- 102   RAC Workshop-I   0   9   9   100     200   300   9
Total 15 15 30 275 525 200 1000 30

Note: Exams Duration will be as under:

  • Theory Exams will be of 3 hours duration.
  • Practical Exams will be of 3 hours duration.
  • Workshop Exam will be of 8 hours duration.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY, FARIDABAD-121006

Community College of Skill Development Engineering Science

Paper Code- EL-101

Semester 1st                                                              Sessional – 25 Marks

Stream– RAC & Electrician                                          Theory – 75 Marks

L  T  P Total Credits                                                   Total: 100 Marks

3  0 0 3                                                                  Duration of Exam: 3 Hours

Course Objectives:

  1. To learn about basics of Mechanics.
  2. To have knowledge of thermodynamic systems and energy interactions.
  3. To learn about basic electrical quantities.
  4. To have a deep insight of electrical laws.

Course Contents

Unit 1: Introduction to Mechanics – Definition of mechanics, statics, dynamics Concept of rigid body, scalar and vector quantities Definition of force, measurement of force in SI units, its representation, types of force: Point force/concentrated force & Uniformly distributed force, effects of force, characteristics of a force. definition of properties like pressure, volume, temperature, heat ,work, energy, mass & weight. Definition of basic and derived quantities, Different system of units and their conversion from one form to another for density, force, pressure, work, power, velocity and acceleration.

Unit 2: Basic Thermodynamics & friction – Thermodynamic state and system, boundary, surrounding, universe, thermodynamic systems – closed, open, isolated, adiabatic, heat engine, heat pump, refrigerator, Carnot cycle, methods of refrigeration, Concept of friction, laws of friction, limiting friction and coefficient of friction, sliding friction.

Unit 3: Basic Electrical quantities – Different forms of energy Advantages of electrical energy, Uses of electrical energy, Basic concept of charge, current, voltage, resistance, power, energy and their units. Electric Induction

Faraday’s Laws, Lenz Law , Fleming’s rule, Principles of    A.C. Circuits, Definition of cycle, frequency, amplitude and time period.

Unit 4: Electrical laws – Ohm’s law-uses , advantages implication, numerical, resistances in series and parallel, Kirchhoff’s current law & Kirchhoff’s voltage law and their applications. Basic idea about primary and secondary cells. Concept of ac and dc, Difference between ac and dc. Concept of resistance, inductance and capacitance in simple A.C. circuit.

       Course Outcomes:

  1. Understands the concept of force.
  2. Learns basic thermodynamics.
  3. Have knowledge of basic electrical terms.
  4. Grasp the concept of electrical laws.

Text/Reference books:

  1. Applied Mechanics by R.S Khurmi; S Chand.
    1. Applied Mechanics by R.K. Rajput.
    1. Engineering Thermodynamics by PK Nag; Tata McGraw Hill, Delhi.
    1. Basic Engineering Thermodynamics by Roy Chaudhary; Tata McGraw Hill, Delhi.
    1. Fundamentals of Electrical Engineering by Sahdev, Uneek Publication, Jalandhar.
    1. Basic Electrical Engineering by PS Dhogal, Tata McGraw Hill Education Pvt. Ltd., New Delhi.
    1. Electrical Science by VK Mehta, S Chand and Co., New Delhi.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY, FARIDABAD-121006

Community College of Skill Development Industrial Safety I

Paper Code- EL-102

Semester 1st                                                              Sessional – 25 Marks

Stream– RAC & Electrician                                          Theory – 75 Marks

L  T  P Total Credits                                                   Total: 100 Marks

3  0 0 3                                                                  Duration of Exam: 3 Hours

Course Objectives:

  • To learn about basic concept of Safety
  • To learn how to reduce workplace hazards.
  • To provide knowledge on various safety devices.
  • To learn safety measures during industrial as well as environmental hazards.

Course Contents

Unit-I: Safety Principles- General safety rules, principles, maintenance, Inspections of turning machines, boring machines, milling machine, planning machine and grinding machines, CNC machines, Wood working machinery, types, safety principles, electrical guards, work area, material handling, inspection, standards and codes- saws, types, hazards. Inspection of material handling equipments.

Unit II: Importance Of Safety, Health And Environment– Health safety and environmental policy, fundamentals of safety, classification of accidents, Managements responsibility, objectives of safety management, National safety council, Employees state insurance act 1948, principles of safety management, safety organization, safety auditing, maintenance of safety, measurements of safety performance, industrial noise and noise control, Industrial Psychology, Industrial accidents and prevention. Introduction to OSHAS 18001 AND OSHA.

Unit III: Process Safety Management- Process safety management (P.S.M) as per OSHA, legal aspects of safety, safety with respect to plant and machinery, the explosive act 1884, personal protective equipment, classification of hazards, protection of respiratory system, work permit system. Safe working practices, housekeeping, safe working environment, safety device and tools, safety instruction during crane operation, safety instruction for welding, burning and cutting and gas welding equipment, electrical safety, case studies, safety in use of electricity, electric shock phenomena, Occurrence of electric shock, medical analysis of electric shock and its effect, safety procedures in electric plants, installation of Earthing system,

Unit-IV: Safety In Hazardous Area– Hazard in industrial zones, classification of industrial Enclosures for gases and vapors. Mechanical, Chemical, Environmental and Radiation hazards, Machine guards and safety devices, slings, load limits, lifting tackles and lifting equipment, hydrostatic test, industrial toxicology, factors influencing the effect of toxic materials, Units of concentration, control measure,

environmental hazards, devices for measuring radiation, safety analysis and risk analysis, risk management, First aid, Safety measures to avoid occupational diseases

Course Outcomes:

  • Illustrate and familiarize the basic concepts and scope of industrial safety.
  • Understand the standards of professional conduct that are published by professional safety organizations and certification bodies
  • Illustrate the importance of safety of employees while working with machineries.
  • Learns safety in various industrial hazard zones.

Text/Reference books:

  1. Industrial safety management by L.M. Deshmukh, Tata Megraw Hill publication

,New Delhi, 2006.

  • Industrial safety health and environment Management system by R.K. Jain & Sunil S. Rao, Khanna Publications , 2008 .

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY FARIDABAD-121006

Community College of Skill Development Paper: Communication Skills I

Paper Code: EL-103

Semester 1st                                                                     Sessional: 25 Marks

Stream: RAC, Electrician & Computer Science                       Theory: 75 Marks

L  T  P Total Credits                                                          Total: 100 Marks

3  0 0 3                                                                          Duration of Exam: 3

Hours

Course Objectives:

  1. To discuss types of communication and their forms.
  2. To improve comprehension.
  3. To improve spoken English and ability to articulate ideas
  4. To improve formal writing skills

Course Contents:

Unit 1: Introduction to Communication– Meaning, Importance and Function of Communication, Types of communication, language of communication, verbal/ non- verbal, formal/informal, visual; advantages and disadvantages

Unit 2: Grammar– Parts of speech, Articles, Tenses, Formation of Sentences, Active and Passive Voice, Direct and Indirect speech

Unit 3: Comprehension, Composition, Translation, Paraphrasing, Essay writing

Unit 4: Letter writing, Report writing, Article writing

Course Outcome:

  1. To learn about communication process, and ways to make communication effective by giving

attention to all elements involved.

  • To improve grammar and gain confidence by enhancing their abilities to articulate their ideas.
  • To acquire better writing skills in formal communication.
  • To be able to revise documents for fruitful reading and comprehension.

Recommended Reference Reading:

  1. Wren and Martin. High School English Grammar and Composition. New Delhi: RRP, 2007
  2. Murphy, Raymond. Essential English Grammar. New Delhi: Cambridge, 2017 Malhotra, Prerna and Halder, Deb. Communication Skills: Theory and Practice. New Delhi: M.S. Indian

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY, FARIDABAD-121006

Community College of Skill Development Engineering Calculations

Paper Code- EL-104

Semester 1st                                                                Sessional: 25 Marks

Stream– RAC, Electrician & Computer                            Theory: 75 Marks

L  T  P Total Credits                                                    Total: 100 Marks

3  0 0 3                                                                     Duration of Exam: 3 Hours

Course Objectives

  1. To familiarize the prospective engineers with Basics of mathematics.
    1. To understand fundamental arithmetical operations.
    1. To learn Unit systems, Fractions and Decimals, roots, percentage.
    1. To have Knowledge of ratio and proportion, factorization and mensuration.

Course Contents

Unit-I: Introduction- Importance of maths and calculation to the trade skill and fundamental arithmetical operation- addition, subtraction, multiplication and division. Applied workshop problems involving addition, subtraction, multiplication and division.System of Units – Definition, different types & system of units, F.P.S., C.G.S & S.I – conversion. SI units for length, mass ,area, volume, capacity, time.

Unit-II: Fraction, Decimals & Percentage- Fraction-Addition, subtraction, multiplication and division problems, Decimal-Addition, subtraction, multiplication and division problems. Fraction and Decimals conversion-Fraction to Decimal and vice versa. Applied workshop problems involving common fractions. Application of fraction to shop problems. Rounding of decimal values use of approximation.

Percentage- Changing percent to Decimal and fraction and vice versa, problems on percentage related to the trade. Simple Problems on Profit & Loss.

Unit-III: Ratio And Proportion- Ratio-Simple problems in Ratio, Proportion- Direct and Inverse Proportion. Ratio & proportion related shop problems. The square and square root of a whole number and decimal. Cube roots, L.C.M., H.C.F.

Unit-IV: Factorisation & Mensuration- Factorisation, Simple algebraic problems, Factorisation of polynomials (Simple problems). Standard algebraic formula and related problems. Solving of Quadratic equations. Perimeter and Area of Square, Rectangle,Traingle, types of triangle, Surface area and volume of different shapes .

Course Outcomes:

  1. To apply the arithmetical operations and conversion of units.
  2. To convert in Fraction and decimals, Percentage.
  • To solve Ratio and proportion, square roots and cube roots.
  • To deal with Factorisation and algebraic problems.
  • To learn about area and perimeter of different shapes and volume of solids.

Reference books

  1. A basic course in mathematics by Nabjyoti Dutta.
  2. Skills in nmathematics by Amit M Agarwal.
  3. Applied mathematics for polytechnics by H.K. Dass
  4. Advanced Engineering Mathematics by Jain RK.
  5. Mathematics book by R.D Sharma.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY FARIDABAD-121006

Community college of skill development Fundamental of computers

 Paper Code: EL – 105

Semester : 1st                                                          Internal : 30 Marks

Branch : Electrician & RAC                                          External: 70 Marks

L T P  Total Credits                                                 Total: 100 Marks

0  0  6   6                                                               Duration of Exam : 3 Hours

Course Objectives:

  1. Give students an in-depth understanding of why computers are essential components in business, education and society.
  2. Introduce the fundamentals of computing devices and reinforce computer vocabulary, particularly with respect to personal use of computer hardware and software.
  3. Provide hands-on use of Microsoft Office applications Word, Excel, Access and PowerPoint.
  4. Provide basic knowledge of internet.

Course Contents:

Unit 1: Basics of Computer- Introduction to Computers, Generations of Computers, Types of Computers, Input-Output Devices, Computer Organization, Advantages and Disadvantages of Computer, BIOS, Booting.

Unit 2: Introduction to Software – Computer Software, Types of Software, Security, Computer Viruses, Number System.

Unit 3: Computer Memory and Operating System- Introduction to Memory Unit, Types of Primary Memory, Secondary Memory; Definition, Types and Functions of Operating System.

Unit 4: Internet Services – Introduction, History, Working, Uses, Advantages, Disadvantages of Internet, E-mail.

Course Outcomes:

  1. Describe the usage of computers and why computers are essential components in society.
  2. Identify categories of programs, system software and applications. Organize and work with files and folders.
  3. Completion of the assignments will result in MS Office applications knowledge and skills.
  4. Describe the usage of Internet and E-mail.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY FARIDABAD-121006

Community College of Skill Development Basics of RAC I

Paper Code- RAC-101

Semester 1st                                                              Sessional – 25 Marks

Stream– RAC                                                            Theory – 75 Marks

L  T  P Total Credits                                                   Total: 100 Marks

3 0 0   3                                                                 Duration of Exam: 3 Hours

Course Objectives:

  • To learn about fundamentals of Refrigeration and Air Conditioning.
  • To have a deep insight of refrigerants and air Conditioners.
  • To learn about refrigeration equipments.
  • To understand the concept of psychrometry.

Course Contents

Unit I: Fundamentals of Refrigeration & Air Conditioning-Introduction to refrigeration, meaning of refrigerating effect, units of refrigeration, COP. Air Conditioning – pressure-gauge pressure and Absolute pressure, Different Units of pressure, conversion of pressure units, Vacuum- partial and perfect vacuum.

Unit II: Refrigerants -Functions, classification, properties of R – 717, R – 22, R– 134 (a) and CO2. Properties of ideal refrigerant, selection of refrigerant, Global Issues of ozone Depletion and global warming, environment friendly refrigerant.

Air Conditioning- principle, elements and types, Heat load in little deep, Classification of Air Conditioners.

Unit III: Refrigeration Equipment– Compressor – Function, various types of compressors , Condenser – Function, various types of condensers , Evaporator – Function, types of evaporators , Expansion Valve – Function, various types such as capillary tube, thermostatic expansion valve, low side and high side float valves, application of various expansion valves , Safety Devices-Thermostat, overload protector LP, HP cut out switch.

Unit IV: Psychrometry – Definition, importance, specific humidity, relative humidity, degree of saturation, DBT, WBT, DPT, sensible heat, latent heat, Total enthalpy of air. Psychrometry chart and various processes of psychrometry, Use of psychrometric chart to calculate dew point temperature.

Course Outcomes:

  1. Learns the basics of refrigeration and air conditioning.
    1. Have knowledge of refrigerants and their effects on environment.
    1. Learns about refrigeration components and their accessories.
    1. Learns psychrometric terms.

Text/Reference books:

  1. Refrigeration and Air Conditioning by R.S Khurmi and J.K. Gupta; S Chand and Company Limited, New Delhi.
  2. Stoecker, W.F. and Jones, J.W., Refrigeration and Air conditioning, Tata McGraw Hill,

1986.

  • Arora, C.P., Refrigeration and Air conditioning, Tata McGraw Hill, 2nd Edition, 2000.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY FARIDABAD-121006

Community College of Skill Development Engineering Drawing I

Paper Code- EL-107

Semester 1st                                                              Sessional – 25 Marks

Stream– RAC & Electrician                                          Theory – 75 Marks

L  T  P Total Credits                                                   Total: 100 Marks

3 0 0   3                                                                 Duration of Exam: 3 Hours

Course Objectives:

  1. To learn about basic engineering instruments.
  2. To have knowledge of sheet layout..
  3. To learn dimensioning and reading of sketches..
  4. To learn orthographic and isometric views of drawing.

Course Contents

Unit I: Introduction- Importance of Engineering Drawing and its knowledge, Use of Drawing Instruments, T-Square, Drawing Board, etc.

Unit II: Lettering, lines and layout of sheet- Letters, numbers and Alphabets as per IS 696/1972, Freehand sketching of straight lines, rectangles, circles, polygons, etc. Use of different types of lines and symbols for drawing, importance of putting dimension on the drawing as per IS 696/1972.

Unit III: Principles Of Dimensioning- Freehand sketching with dimension, scale and proportionate sketching, Reading of simple blue print.

Unit IV: Orthographic And Isometric Projections- Isometric views and oblique views with dimensions of such as cube, rectangular, block, cylinder, etc, Explanation of simple orthographic projection 1st angle as per IS 696/1972, Explanation of simple orthographic projection 3rd angle as per IS 696/1972, Sketching the views of solid bodies when viewed perpendicular to their surfaces and axes, Freehand sketching of plain and elevation of simple objects like hexagonal bar, square bar, Etc, Construct an orthographic projection from the given isometric view of shaped blocks in 1st angle method, Construct an orthographic projection from the given isometric view of shaped blocks in 3rd angle method, Exercise on blue print reading, related to missing lines and missing views, Simple isometric drawing – from the given orthographic views of simple objects.

Course Outcomes:

  1. Have knowledge of engineering instruments.
    1. Learns lines and symbols of drawing.
    1. Learns freehand sketching.
  • Understands projections of drawing.

Text/Reference books:

  1. Engineering Drawing by KK Dhiman, Ishan Publications, Ambala, Haryana.
  2. Elementary Engineering Drawing (in first angle projection) by ND Bhatt, Charotar Publishing House, Anand, Gujrat.
  3. A Text Book of Engineering Drawing by Surjit Singh published by Dhanpat Rai and Co., Delhi.
  4. Engineering Drawing by PS Gill published by SK Kataria and sons, Delhi.
  5. Engineering Drawing by RB Gupta published by Satya Prakashan, New Delhi.

YMCA UNIVERSITY OF SCIENCE & TECHNOLOGY FARIDABAD-121006

Community College of Skill Development RAC Workshop I

Paper Code- RAC-102

Semester 1st                                                              Internal – 200 Marks

Stream– RAC                                                            External – 300 Marks

L  T  P Total Credits                                                   Total: 500 Marks

0  0 24 12                                                               Duration of Exam: 3 Hours

Course Objectives:

  1. To aware about hazards and safety measures.
  2. To familiarize with the terminology associated with refrigeration systems and air Conditioning.
  3. To have knowledge of servicing in different Refrigeration components.
  4. To understand the installation process in air conditioning.

Course Contents

  1. Recognize & comply safe working practices, environment regulation and housekeeping.
  2. Understand and explain different mathematical calculation & science in the field of study including basic electrical.
  3. Interpret specifications, different engineering drawing and apply for different application in the field of work.
  4. Select and measure dimension of components and record data.
  5. Explain the concept in productivity, quality tools, and labour welfare legislation and apply such in day to day work to improve productivity & quality.
  6. Explain energy conservation, global warming and pollution and contribute in day to day work by optimally using available resources.
  7. Explain personnel finance, entrepreneurship and manage/organize related task in day to day work for personal & societal growth.
  8. Plan and execute the work related to the occupation
  9. Awareness of trade related hazards and safety.
  10. Produce fitting jobs as per drawing (Range of operations: marking, sawing, filing, drilling, reaming, taping and dieing etc.)
  11. Produce Sheet metal components (range of operation – marking, metal cutting, bending, riveting and soldering etc.).
  12. Aware of electrical safety. Join different wire, measure power, currents, volts and earth resistance etc. Connect single phase, 3 phase motors i.e. star and delta connections.
  13. Identify the electronic components and their colour code i.e. transistor, capacitor, diode, amplifier, I.C and able to work soldering.
  14. Perform gas welding, brazing, soldering observing related safety.
  1. Identify RAC tools and equipments and recognize different parts of RAC system. Perform copper tube cutting, flaring, swaging, brazing.
  2. Test mechanical & electrical components. Perform leak test, vacuuming, gas charging, wiring & installation of refrigerator.
  3. Perform door alignment, door gasket fitting, replace door switch.
  4. Test compressor motor terminal, start compressor Direct with relay & without relay, technique of flushing, leak testing, replacing capillary & filter drier, evacuation & gas charging.
  5. Check components of frost free refrigerator (electrical / mechanical), wiring of frost free freeze & air distribution in refrigerator sector. Leak detection, evacuators & gas charging
  6. Dismantle, repair and assemble hermetic, fixed and variable speed compressor, and test performance.
  7. Identify the terminals of sealed compressor and their wiring and measure current, volts, watts and use of DOL starter with different types of motors.
  8. Selection of Hermetic compressor for different appliances, starting methods, testing controls & safety cut out used in sealed compressor.
  9. Identify the components of control system of Inverter A.C and wiring of control system.
  10. Servicing & de-scaling of condenser (internals & externals) used in different appliances.
  11. Fitting & adjustment of drier, filter & refrigerant controls used in different refrigeration system.
  12. Servicing of different evaporator used in different appliances.
  13. Recovery and Recycling of Refrigerant used, alternative of CFC, HFC re- cover, transfer & handling of gas cylinders.
  14. Retrofit CFC/HFC machine with ozone friendly refrigerant with understanding of the compatibility.
  15. Pack thermal insulation, prevent cooling leakage.
  16. Installation of window AC, test Electrical & electronics components & Fault diagnosis & remedial measures.
  17. Servicing electrical & electronic control test, Installation, wiring, fault finding & remedial measures of different split AC
  18. Servicing car AC. Fault diagnosis & remedial measures

Course Outcomes:

  1. Perform different operations in refrigeration & air conditioning shop.
    1. Understand the fundamentals of refrigeration and air conditioning rigs.
    1. Learns troubleshooting of all metering devices, testing of leakage in refrigeration system.
    1. Complete analysis of refrigeration and Air-Conditioning Components.