Now that you have completed this vacuum modeling tutorial, do this quick quiz to help you remember the tools and techniques you have learned.

1. Curve snapping helps you place or transform an object so that it snaps to a curve or an edge. How do you turn curve snapping on?
   • (a) Hold down the (Windows) or (Mac) key
   • (b) Hold down the (Windows) or (Mac) key
   • (c) Hold down the and (Windows) or and (Mac) keys
   • (d) Hold down the and (Windows) or and (Mac) keys
   • (e) Hold down the and (Windows) or and (Mac) keys
2. Only one layer is active at any one time. How is the active layer displayed?
   • (a) The layer tab blinks
   • (b) All the geometry on the layer is shown in pale blue
   • (c) All the other layer tabs are hidden
   • (d) The layer tab is shown in yellow
   • (e) The layer tab is shown in red
3. When typing in x,y,z, dimensions, how do you switch from absolute to relative mode?
   • (a) Choose Relative from the Control Panel
   • (b) Choose Relative from the Transform palette
   • (c) Type r after you have typed the dimension
   • (d) Type in r and enter, or just type an r before you type the dimension
   • (e) Alias automatically knows that you need relative mode
4. What is the minimum number of Edit Points needed to create a curve using the Curves > New Curves > New Edit Point Curve tool?
   • (a) one
   • (b) two
   • (c) three
   • (d) four
   • (e) five
5. The Surface Edit > Trim > Trim Surface tool can be used for which of the following functions?
   • (a) To discard an area of a surface defined by a curve-on-surface
   • (b) To keep an area of a surface defined by a curve-on-surface
   • (c) To divide a surface into two areas defined by a curve-on-surface
   • (d) To project a line onto a surface to create a curve on surface
   • (e) All of the above