This introductory textbook is designed for undergraduate courses in Hydraulics and Pneumatics/Fluid Power/Oil Hydraulics taught in Mechanical, Industrial and Mechatronics branches of Engineering disciplines. Besides focusing on the fundamentals, the book is a basic, practical guide that reflects field practices in design, operation and maintenance of fluid power systems—making it a useful reference for practising engineers specializing in the area of fluid power technology. With the trends in industrial production, fluid power components have also undergone modifications in designs. To keep up with these changes, additional information and materials on proportional solenoids have been included in the second edition. It also updates drawings/circuits in the pneumatic section. Besides, the second edition includes a CD-ROM that acquaints the readers with the engineering specifications of several pumps and valves being manufactured by industry. KEY FEATURES : • Gives step-by-step methods of designing hydraulic and pneumatic circuits. • Provides simple and logical explanation of programmable logic controllers used in hydraulic and pneumatic circuits. • Explains applications of hydraulic circuits in machine tool industry. • Elaborates on practical problems in a chapter on troubleshooting. • Chapter-end review questions help students understand the fundamental principles and practical techniques for obtaining solutions.