Features of the Textbook The instructional design of this textbook includes student-focused learning tools to help you succeed. This visual guide highlights these features. Chapter Opening Materials Each chapter opener provides a preview of topics that are covered. Objectives clearly identify the knowledge and skills to be gained when the chapter is completed. Important Terms list the key words to be learned in the chapter. Additional Features Additional features are used throughout the body of each chapter to further learning and knowledge. Safety Notes alert you to potentially dangerous materials and practices that can affect your personal safety. Cautions alert you to practices that could potentially damage equipment or cause system failure. Pro Tips provide hands-on common practice and guidance that is especially applicable for on-the-job situations. Illustrations Illustrations have been designed to clearly and simply communicate the specific topic. Photographic images have been updated to show the latest equipment for this edition. x