ENGINEERING DRAWING (NSQF)

1 (i) ENGINEERING DRAWING (NSQF) 2nd YearGroup - INATIONAL INSTRUCTIONALMEDIA INSTITUTE, CHENNAIPost Box No. 3142, CTI Campus, Guindy, Chennai - 600 032 MINISTRY OF SKILL DEVELOPMENT & ENTREPRENEURSHIPGOVERNMENT OF INDIADIRECTORATE GENERAL OF TRAINING(For Mechanical Trade Group)(ii) ENGINEERING DRAWING (NSQF) - 1st YearGroup - I (For Mechanical Trades Gruop)Developed & Printed byNational Instructional Media InstitutePost Box , Chennai - 600032 INDIAE mail: Printed byNational Instructional Media InstituteChennai - 600 032 First Edition : November 2019 Copies : (iii)FOREWORDThe Government of India has set an ambitious target of imparting skills to 30 crores people, one out ofevery four Indians, by 2020 to help them secure jobs as part of the National Skills Development Training Institutes (ITIs) play a vital role in this process especially in terms of providing skilledmanpower. Keeping this in mind, and for providing the current industry relevant skill training to Trainees,ITI syllabus has been recently updated with the help of comprising various stakeholder's viz.

2 Industries,Entrepreneurs, Academicians and representatives from National Instructional Media Institute (NIMI), Chennai, has now come up with instructional material tosuit the revised curriculum for ENGINEERING DRAWING 2nd Year Group - I NSQF (Mechanical TradeGroup of 22 Trades) under CTS will help the trainees to get an international equivalency standard wheretheir skill proficiency and competency will be duly recognized across the globe and this will also increasethe scope of recognition of prior learning. NSQF trainees will also get the opportunities to promote lifelong learning and skill development. I have no doubt that with NSQF the trainers and trainees of ITIs, andall stakeholders will derive maximum benefits from these IMPs and that NIMI's effort will go a long way inimproving the quality of Vocational training in the Executive Director & Staff of NIMI and members of Media Development Committee deserve appreciationfor their contribution in bringing out this HindRAJESH AGGARWALD irector General/ Addl.

3 SecretaryMinistry of Skill Development & Entrepreneurship,Government of India. New Delhi - 110 001(iv)PREFACEThe National Instructional Media Institute(NIMI) was set up at Chennai, by the Directorate General of Training,Ministry of skill Development and Entrepreneurship, Government of India, with the technical assistancefrom the Govt of the Federal Republic of Germany with the prime objective of developing and disseminatinginstructional Material for various trades as per prescribed syllabus and Craftsman Training Programme(CTS)under NSQF Instructional materials are developed and produced in the form of Instructional Media Packages (IMPs),consisting of Trade Theory, Trade Practical, Test and Assignment Book, Instructor Guide, Wall charts,Transparencies and other supportive materials. The above material will enable to achieve overall improvementin the standard of training in national multi-skill programme called SKILL INDIA, was launched by the Government of India, through aGazette Notification from the Ministry of Finance (Dept of Economic Affairs), Govt of India, dated 27thDecember 2013, with a view to create opportunities, space and scope for the development of talents ofIndian Youth, and to develop those sectors under Skill emphasis is to skill the Youth in such a manner to enable them to get employment and also improveEntrepreneurship by providing training, support and guidance for all occupation that were of traditionaltypes.

4 The training programme would be in the lines of International level, so that youths of our Country canget employed within the Country or Overseas employment. The National Skill Qualification Framework(NSQF), anchored at the National Skill Development Agency(NSDA), is a Nationally Integrated Educationand competency-based framework, to organize all qualifications according to a series of levels of Knowledge,Skill and Aptitude. Under NSQF the learner can acquire the Certification for Competency needed at anylevel through formal, non-formal or informal ENGINEERING DRAWING 2nd Year Group - I (Mechanical Trade Group of 22 Trades under CTS) is one ofthe book developed by the core group members as per the NSQF ENGINEERING DRAWING 2nd Year Group - I (Mechanical Trade Group of 22 Trades under CTS as perNSQF) is the outcome of the collective efforts of experts from Field Institutes of DGT, Champion ITI s foreach of the Sectors, and also Media Development Committee (MDC) members and Staff of NIMI.

5 NIMI wishes that the above material will fulfill to satisfy the long needs of the trainees and instructors and shallhelp the trainees for their Employability in Vocational would like to take this opportunity to convey sincere thanks to all the Members and Media DevelopmentCommittee (MDC) P. DHINGRAC hennai - 600 032 EXECUTIVE DIRECTOR(v)ACKNOWLEDGEMENTThe National Instructional Media Institute (NIMI) sincerely acknowledge with thanks the co-operation andcontribution of the following Media Developers to bring this IMP for the course ENGINEERING DRAWING (2nd YearGroup - I (Mechanical Trade Group of 22 Trades) as per DEVELOPMENT COMMITTEE MEMBERSShri. M. Sangara pandian-Training Officer (Retd.)CTI, Guindy, G. Officer (Retd.)Govt , DET - CO-ORDINATORSShri. Nirmalya Nath-Deputy General Manager,NIMI, Chennai - G. Michael Johny-Assistant Manager,NIMI, Chennai - records its appreciation of the Data Entry, CAD, DTP Operators for their excellent and devoted services inthe process of development of this also acknowledges with thanks, the efforts rendered by all other staff who have contributed for the developmentof this book.)

6 (vi)INTRODUCTIONT heory and procedure along with the related exercises for further practiceThis book on theory and procedure along with related exercises contains theoretical information on 2nd yearGroup - I ENGINEERING DRAWING NSQF (Mechanical Trade Group of 22 Trades) and procedure of DRAWING / sketchingdifferent exercise for further practice are also available. Wherever required, BIS specification has been for further practiceThe practice exercise is given with Theory and procedure for 2nd year book made obsolete as it was felt that, it isvery difficult to work in workbook using DRAWING instruments. It is well known fact that, any DRAWING is prepared onsuitable standard size of DRAWING sheets instructor is herewith advised to go through the instructions given below and to follow them in view of impartingmuch DRAWING skill in the the above said ability and doing small drawings is not a simple task.

7 These books will provide a goodplatform for achieving the said allotment:Duration of 2nd Year: 80 HrsTime allotment for each module has been given below. Group - I (Mechanical Trade Group of 22 Trades) in Hrs1 Construction of scales and diagonal sections (Ellipse and Parabola) of nuts, bolt, screw thread, different & of locking devices Double nut, Castle nut, Pin, of and rivetted joints, welded - of pipes and pipe view of Vee blocks, Bush & Bearing, - types of Coupling viz., Muff coupling, Half LapCoupling, Flange coupling, etc. Simple work holdingdevice vice, DRAWING details of two mating blocksand assembled view8 Sketch of shaft and pulley, belt, gear, gear HrsInstructions to the InstructorsIt is suggested to get the DRAWING prepared on A4/A3 sheets preferably on only one side. If separate table and chairfacility is available for every trainee then it is preferred to use A3 sheets and if the DRAWING hall is provided withdesks then A4 sheets may be used.

8 However while preparing bigger drawings on A4 sheets suitable reductionscale to be used or multiple sheets may be used for detailed and assembly the border and the title block to be drawn only for the first sheet of the chapter. Eg. for conical sections onlyfirst sheet will have the title block whereas the rest of the sheets of that chapter will have only number of sheet and total no. of sheets to be mentioned on each completed sheet to be punched and filled in a box file/ suitable files and preserved by the trainees carefullyafter the approval of instructors, VPS and Principals of the file may be referred by the authority before granting the internal marks at the end of 2nd Year.(vii)CONTENTSE xercise of the ExercisePage of Scales and diagonal Sections (Ellipse & Parabola) of screw threads and types of nuts, locking devices double nut, castle nut,screws and pin, etc.

9 Of foundation of riveted of pipes and pipe view of Vee view of bush & view of view of different types of coupling viz, muff coupling, half lap coupling,flange coupling, view of simple work holding device view of DRAWING details of two mating blocks and assembled of shaft & pulley and of gear, gear drives75 LEARNING / ASSESSABLE OUTCOMEOn completion of this book you shall be able to Read and apply ENGINEERING DRAWING for different application in thefield of work.(viii)SYLLABUS2nd Year Group - I (Mechanical Trade Group of 22 Trades) Duration: One in hrsIConstruction of scales and diagonal scale4 IIConic sections (Ellipse and Parabola)3 IIIS ketches of nuts, bolt, screw thread, different types of locking Double nut, Castle nut, Pin, of foundation8 VRivets and rivetted joints, welded joints10 VISketches of pipes and pipe joints10 VIIA ssembly view of251 Vee blocks2 Bush & Bearing3 Different types of Coupling viz.

10 , Muff coupling, Half Lap Coupling,Flange coupling, Simple work holding device vice5 DRAWING details of two mating blocks and assembled viewVIIIS ketch of shaft and pulley, belt, gear, gear drives14 Total80 Group - I (Mechanical Trade group).Following 22 trades have been covered in mechanical trade group(Fitter, Turner, Machinist, Machinist Grinder, Mechanic Machine Tool Maintenance, OperatorAdvance Machine Tool, Mechanic Motor Vehicle, Mechanic Agriculture Machinery, Ref. &A/C Mechanic. Central Air conditioning plant, Mechanic Mining Machinery, TDM (D&M),TDM (J&F), Marine Fitter, Aeronautical Structure, Spinning Technician, Textile Wetprocessing Technician, Weaving Technician, Textile Mechatronics, painter General,Mechanic Maintenance (Chemical plant),Refractory Technician.)1 For ENGINEERING TradesExercise DrawingConstruction of scales and diagonal scalePlain Scale, Representative fraction ( )andDiagonal ScaleScales : It is difficult to draw the components to their actualsizes, because they may be too large to be accommodatedon the DRAWING sheet or too small to draw and cannot beeffectively used in the shop floor.