A thorough understanding of the concepts developed in this book will prepare the reader for more advanced course on the subject of Mechanical Engineering viz. Production Technology/ Engineering. The entire syllabus of Production Engineering is presented in a simple and lucid style to make it comprehensible to an average student. In this book I tried to present the approach not only for competitive examinations like GATE, IES and IAS but also for university examinations of JNTU, UPTEC etc. especially on the subjects like Material Science, Metrology and Production Processes. The questions which already appeared in competitive examinations like GATE, IES and university exams (both subjective and objective) are incorporated in each chapter.