36 Geometric Dimensioning and Tolerancing Copyright Goodheart-Willcox Co., Inc. 20. Which of the following processes uses computer-controlled machine tools to automate machining processes? A. Mechanical computer-aided design B. Computer-aided manufacturing C. Mechanical drafting D. Engineering drafting Analyze and Apply Answer the following questions using the information provided in this chapter. 1. Describe the items that are typically included on a complete engineering drawing or 3D model used to define product requirements. _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ 2. A _______________ is a numerical value expressed in appropriate units of measure. 3. What ASME dimensioning and tolerancing standard establishes approved dimensioning and tolerancing practices for engineering drawings and related documentation practices? _ _____________________________________________________________________________ 4. A _______________ is a standard that has been adopted by a governmental body and is enforced by law. 5. Identify the tolerancing method that specifies directly toleranced dimensions and uses the rectangular coordinate system to locate the features of a part according to linear distances from the X, Y, and Z axes. _ _____________________________________________________________________________ 6. A _______________ tolerance is permitted to vary in both the plus (+) and minus (–) directions from the specified dimension. 7. Give the titles of the following ASME standards. A. ASME Y14.41 _ _____________________________________________________________________________ B. ASME Y14.43 _ _____________________________________________________________________________ C. ASME Y14.5.2 _ _____________________________________________________________________________ 8. A _______________ is a theoretically perfect plane, surface, point, line, axis, or a combination thereof, derived from the true geometric counterpart.