Engineering Graphics, 6/e
Chapter 21 - PARALLELISM AND PERPENDICULARITY

     

  1. Do parallel lines always appear parallel in all views?


  2. If two planes appear in an edge view, are they parallel? What condition would make the planes parallel?


  3. How are the end points of lines labeled in descriptive geometry?


  4. Describe how to use intersecting lines to check for parallelism between planes.


  5. How is a true length line drawn on a plane?


     

  6. Describe the given-view method for constructing a plane perpendicular to a line.


  7. When using the auxiliary view method to create a line perpendicular to a plane, does the plane need to be in edge view, or does the line need to be true length in the auxiliary view?


  8. What is the name given to two lines that are not parallel and not intersecting?


  9. When is the shortest distance between two lines NOT a line that is perpendicular to both given lines?


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