34 Geometric Dimensioning and Tolerancing Copyright Goodheart-Willcox Co., Inc. _____ 17. True or False? The most common CADD formats used in the manufacturing industry are 2D multiview drawings and 3D solid models. _____ 18. True or False? Because CADD automates the application of GD&T symbols, the designer does not need to be concerned with using correct drafting practices. _____ 19. True or False? PMI tools are software tools used to apply annotations to a 3D model. _____ 20. True or False? Computer-aided manufacturing (CAM) involves the use of computer-controlled machine tools to automate manufacturing processes. Multiple Choice 1. A _____ is a representation of an object that shows object length, width, and/or height on a flat plane. A. 2D drawing B. 3D drawing C. surface model D. solid model 2. A(n) _____ is a representation that encloses a volume and contains information about mass. A. 2D drawing B. solid model C. surface model D. orthographic view 3. A(n) _____ is the total amount a dimension or feature is permitted to vary. A. annotation B. specified dimension C. standard D. tolerance 4. _____ is the general term that refers to the types of tolerances used to control form, profile, orientation, location, and runout. A. Dimensioning B. Modeling C. Geometric tolerancing D. Tolerancing 5. The form of drafting used by the manufacturing industry is _____ drafting. A. architectural B. civil C. structural D. mechanical 6. The ASME _____ standard specifies approved dimensioning and tolerancing practices for engineering drawings. A. Y14.1 B. Y14.3 C. Y14.5 D. Y14.8 7. Which of the following is not one of the benefits of GD&T? A. GD&T helps reduce the number of design revisions. B. Tolerance accumulation is overcome through the use of chain dimensioning. C. Parts can be produced within specified tolerances to allow for interchangeable manufacturing. D. GD&T helps ensure that defective parts are rejected and quality parts are accepted. 8. A _____ dimension has an associated plus and minus (±) tolerance or limit dimension values. A. basic B. directly toleranced C. reference D. limited