This unit on pneumatics, for use in postsecondary programs, is organized in eight sections. Each section consists of information sheets with line drawings and multiple-choice questions for each topic in the sections. Answers are provided at the back of the book. The following topics are covered: (1) introduction--pressure, principles of gases, uses of pneumatics; (2) safety; (3) compressors; (4) air treatment; (5) pneumatic piping systems; (6) pneumatic valves; (7) cylinders; and (8) miscellaneous valves/air logic and diagrams. Knowledge-based competency objectives are provided for each topic. (KC)