Book excerpt: Principles of Engineering Mechanics is written keeping in mind the requirements of the Students of Degree, Diploma and A.M.I.E. (I) classes. The objective of this book is to present the subject matter in a most concise, compact, to-the-point and lucid manner. All along the approach to the subject matter, every care has been taken to arrange matter from simpler to harder, known to unknown with full details and illustrations. A large number of worked examples, mostly examination questions of Indian as well as foreign universities and professional examining bodies, have been given and graded in a systematic manner and logical sequence, to assist the students to understand the text of the subject. At the end of each chapter, a few exercises have been added, for the students, to solve them independently. Answers to these problems have been provided.