Copyright Goodheart-Willcox Co., Inc. Name _____________________________________________________________________ 39 3. Explain the reasons why companies adhere to industry standards for dimensioning and tolerancing practices. Why would a company want to develop its own standards for certain applications, such as 2D CADD drawing development and 3D modeling? _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ 4. Explain why it is important to know about the ISO standards used in engineering and design. What are some of the key differences between ASME and ISO standards applicable to dimensioning and tolerancing? _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ 5. List the common benefits of GD&T and explain how the benefits are made possible through the application of geometric tolerances to 2D CADD drawings and 3D models. _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________ _ _____________________________________________________________________________