4 Unit 25, Print Reading Activities, consists of additional prints and related questions. These activities are designed to give you the opportunity for added prac- tice of your welding print reading skills. It is suggested that these activities be performed after the completion of the first 24 units, but they may be used anytime as a review. Notice to User The procedures and practices described in this text are effective methods of performing given tasks. However, note that this information is general and applies to most situations. You must make sure all weld requirements are being fulfilled. It is also important for the resulting weldments to meet design specification. You must also make sure you are following all safety rules. This text contains the most complete and accurate information able to be obtained from various authoritative sources at the time of publication. Goodheart-Willcox Co., Inc. cannot assume responsibility for changes, errors, or omissions. About the Authors Each author has many years of experience in the teaching, welding, and print reading fields. They are confident that you will find this text a tremendous tool for learning how to read and interpret welding prints. John R. Walker John R. Walker is the author of thirteen textbooks and has written many magazine articles. Mr. Walker did his undergraduate studies at Millersville University and has a Master of Science degree in Industrial Education from the University of Maryland. He taught industrial arts and vocational education for thirty-two years and was Supervisor of Industrial Education for five years. He also worked as a machinist for the U.S. Air Force and as a draftsman at the U.S. Army Aberdeen Proving Grounds. W. Richard Polanin W. Richard Polanin is a professor at Illinois Central College, as well as the coordinator of the Manufacturing Engineering Technology and Welding Technology programs. Dr. Polanin has a bachelor’s and master’s degree from Illinois State University and a doctorate degree from the University of Illinois. In addition to his twenty-five years of teaching, he is an active consultant in welding and manufacturing. He is an AWS Certified Welding Inspector, AWS Certified Welding Educator, and a SME Certified Manufacturing Engineer. He has published numerous technical papers and has made many technical presen- tations in the areas of welding, manufacturing, robotics, and manufacturing education.