This book provides fundamentals of Mechanical Engineering for the undergraduate students of all branches of engineering. The various topics of Mechanical Engineering that are discussed in the book are: Machine tool and fabrication process  Thermodynamics, IC engines and steam turbines  Hydraulic turbines and pumps Refrigeration and air-conditioning  Power transmission methods and devices Stresses, strain, shear force and bending moment diagrams Numerical control machines. (NC and CNCs)  Applied mechanics. A large number of worked out problems, exercises and MCQs are provided in all the chapters.