List and explain three common elements in drafting.
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Lines that, when combined with each other, provide graphic information about the external shape and details of an object.
Dimensions that give the size and location of parts, shapes, and assemblies.
Sections that are used to expose internal construction details when an object is cut apart by imaginary cutting planes.
Processes that are represented by symbols and notes for purposes of identifying how each part is to be produced.
Geometric positioning that deals with placing and accuracy of geometric objects in relationship to one another.
Notes and other non-graphical information clearly lettered (printed).
Tolerances that deal with accuracy related to form and size and position of finished surfaces, where high precision is required.
Materials that are used for making parts, including information about weight, strength, and hardness.
Computer-aided drafting (CAD) applications, where appropriate.
Technical sketching techniques for preparing line and form engineering and technical sketches to complement precise engineering drawings.
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