About this eBook
PREFACE TO THE REVISED EDITION
PREFACE This revised edition of book takes special care to include the new topics of machine drawing as per the new syllabi of different universities. Twelve Model Test Papers, given at the end of the book are useful for the students to practice before examination. All chapters, given in multicolour enchance the content value and give the students an idea of which they will be dealing in reality to abridge the gap between theory and actual practice. I hope the readers will find this book more useful. Three test papers have been added for Self Assessment of the students. These papers contain MCQs and Objective Type Questions. The author is thankful to Prof. Harvinder Lal, Prof. Jagjot Singh, Prof. Naresh Dr. Naveen Dhillo and Prof. Gurmeet Singh Gahir for their valuable suggestions. Suggestions for further improvement of the book from the colleagues and learners will be greatly acknowledged and incorporated in the subsequent edition.
Dr. R.K. DHAWAN
Disclaimer While the author of this book has made every effort to avoid any mistake or omission and has used his skill, expertise and knowledge to the best of his capacity to provide accurate and updated information. The author and S. Chand do not give any representation or warranty with respect to the accuracy or completeness of the contents of this publication and are selling this publication on the condition and understanding that they shall not be made liable in any manner whatsoever. S.Chand and the author expressly disclaim all and any liability responsibility to any person, whether a purchaser or reader of this publication or not, in respect of anything and everything forming part of the contents of this publication. S. Chand shall not be responsible for any errors, omissions or damages arising out of the use of the information contained in this publication. Further, the appearance of the personal name, location, place and incidence, if any in the illustrations used herein is purely coincidental and work of imagination. Thus the same should in no manner be termed as defamatory to any individual.
PREFACE TO THE FIRST EDITION
PREFACE A Textbook of Machine Drawing has been prepared to meet the requirements of the students preparing for B.Sc. Engineering, B.E., B.Tech., A.M.I.E. India , Diploma in Mechanical Engineering, Production Engineering, Automobile Engineering and Textile Engineering, I.T.I. Draftsman Course in Mechanical Engineering , C.T.I. and other Engineering Examinations. The book is in First Angle Projection as recommended by Bureau of Indian Standards, SP 46-1988. However, the third angle projection has also been included in it. The book is divided into three sections, each containing different chapters covering questions for self examination viva-voce , objective type questions, fill in the blanks, problems for practice, thus covering the full syllabus of all Indian Universities and boards. The book is equally useful for the students of different Technical Universities and Polytechnics of India. Simple language, easy to follow descriptions of subject matter and clear diagrams are the characteristic features of the book. Acknowledgement is due to Bureau of Indian standards and other authorties on the subject, whose works author has Consulted for writing the book. Authors warmest thanks to M s S. Chand Co. for bringing out the book in such short period with good get-up, fine printing and reasonable price.