Success in competitive exams depends on proper planning of studies and appropriate selection of study materials. In the last 8 years unknowingly. I have been in the process of learning Mechanical Engineering. I never come across a single book that puts adequate emphasis on problem solving procedure, inter-relativity among formulas, and fundamental concept through pictorial representation for easy understanding with a dedicated focus on subject recollection. Hence, I started to compile a book that will cater exclusively to candidates taking completive exams like GATE, ES, PSU�S etc. and I feel pleasure in presenting you the book useful as �SUBJECT REFRESHER� I have tried to make this book useful for those students too, who are not comfortable with Mechanical Subject. The pre-requisites for reading this book are basic understanding of the MECHANICAL subjects.