Interpreting Engineering Drawings (Drafting and Design) - Tapa blanda

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Jay D. Helsel has worked more than 35 years in education, having served as a professor of applied engineering and technology courses, chairperson of the Department of Applied Engineering and Technology, and Vice President for Administration and Finance at California University of Pennsylvania. Dr. Helsel has had extensive experience teaching mechanical drafting at both the secondary and post-secondary levels and has worked in industry as well. He holds an undergraduate degree from California University of Pennsylvania, a master's degree from the Pennsylvania State University, and a doctoral degree from the University of Pittsburgh. Dr. Helsel is now a full-time writer and has authored publications such as Engineering Drawing and Design, Fundamentals of Engineering Drawing, Programmed Blueprint Reading, Computer-Aided Engineering Drawing, and Mechanical Drawing: Board and CAD Techniques, as well as various workbooks and other ancillary products associated with the above publications. Cecil H. Jensen took an early retirement from teaching to devote his full time to technical writing. He held the position of Technical Director at the McLaughlin Collegiate and Vocational Institute, Oshawa, Ontario, Canada, and has more than twenty-seven years of teaching experience in mechanical drafting. He was an active member of the Canadian Standards Association (CSA) Committee on Technical Drawings. Mr. Jensen has represented Canada at international (ISO) conferences on engineering drawing standards, which took place in Oslo, Norway and Paris, France. He also represented Canada on the ANSI Y14.5M Committee on Dimensioning and Tolerancing. He is the successful author of numerous texts including Engineering Drawing and Design, Fundamentals of Engineering Drawing, Geometric Dimensioning and Tolerancing for Engineering and Manufacturing Technology, Computer-Aided Engineering Drawing, and Home Planning and Design. Before he began teaching, Mr. Jensen spent several years in industrial design. He also supervised the evening courses in Oshawa and was responsible for teaching selected courses for General Motors Corporation apprentices.