The abbreviation for drawing is</p>

This is a line terminated by arrowheads, indicating the direction and extent of a dimension:

Spur gear design normally begins with selecting this:

This is a solid shape that fits inside the mold and forms a hole in a cooled cast metal or molten plastic object:

Traditional drafters need to be able to create several different line widths because ________.

This type of surface may be a plane, a single curved surface, or a warped surface:

A fillet is a rounded surface on the ________ corner of a part.

When using versions of Auto-CAD prior to Release 2006 it may be necessary to ________ a block in order to edit it.