118 Geometric Dimensioning and Tolerancing Chapter Test Name _________________________________ 1. Defi ne datum. __________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ 2. Defi ne datum feature. ___________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ 3. Describe datum feature simulators. Include the term “simulated datums” in your description and give at least three examples of datum feature simulators used in manufacturing. _________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ 4. Identify at least fi ve locations where a datum feature symbol can be placed on a drawing. 1) ____________________________________________________________________ ____________________________________________________________________ 2) ____________________________________________________________________ ____________________________________________________________________ 3) ____________________________________________________________________ ____________________________________________________________________ 4) ____________________________________________________________________ ____________________________________________________________________ 5) ____________________________________________________________________ ____________________________________________________________________ 5. Defi ne datum plane. _____________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ 3