This book has been written specifically to meet the exhaustive requirements of the subject “Elements of Mechanical Engineering” of B.E. examination of Punjab Technical University, Jalandhar. The book includes comprehensive treatment of the subject matter under wide range of topics mentioned in the syllabus, with a large number of solved examples to support the text. Besides this, Highlights, Objective Type Questions, Theoretical Questions and Unsolved Examples have been added at the end of each chapter to make the book a comprehensive unit in all respects. As per new syllabus of PTU, Jalandhar, three new chapters namely, ‘‘Engineering Materials’’ ‘‘Centre of Gravity and Centroid’’ and ‘‘Moment of Inertia’’ have been added to make the book complete in every sense.