33 Copyright Goodheart-Willcox Co., Inc. Chapter Review Name _____________________________________________________________________ Know and Understand Answer the following questions using the information provided in this chapter. True/False _____ 1. True or False? Geometric dimensioning and tolerancing is the dimensioning and tolerancing of features to define permissible variations relating to the characteristics of form, profile, orientation, and runout, or the relationship between features. _____ 2. True or False? A specified dimension is the total amount a dimension or feature is permitted to vary. _____ 3. True or False? Mechanical drafting is the form of drafting used by the manufacturing industry. _____ 4. True or False? Drawings in the United States are commonly produced using first-angle projection. _____ 5. True or False? The American Society of Mechanical Engineers (ASME) and the International Organization for Standardization (ISO) publish the primary GD&T standards that designers and manufacturers reference today. _____ 6. True or False? ASME standards primarily govern work done in Europe, and ISO standards are primarily used in the United States. _____ 7. True or False? A directly toleranced dimension is a dimension with an associated plus and minus (±) tolerance or limit dimension values. _____ 8. True or False? Geometric tolerancing refers to the use of coordinate dimensioning without datums. _____ 9. True or False? A bilateral tolerance is a tolerance permitted to vary in only one direction. _____ 10. True or False? Coordinate tolerancing uses the rectangular coordinate system to locate the features of a part. _____ 11. True or False? GD&T uses a reference coordinate system of datums to locate the features of a part. _____ 12. True or False? A datum is an actual feature on a part, such as a surface identified with a datum feature symbol. _____ 13. True or False? Coordinate tolerancing establishes a standard method for defining a system origin where dimensions are measured from right to left. _____ 14. True or False? Minimum shaft diameter and maximum hole diameter are MMC applications. _____ 15. True or False? Geometric tolerancing uses basic dimensions and positional tolerancing with cylindrical tolerance zones to overcome tolerance buildup. _____ 16. True or False? A surface model contains information about object edges, vertices, surfaces, and mass.