Application should include

• line weight
• construction lines/guide lines
• object lines/visible lines
• hidden lines
• section lines
• center lines
• dimension lines
• extension lines
• cutting plane lines
• phantom lines
• short- and long-break lines
• leaders
• border lines.

Note: ANSI Standard Y14.2

Process/Skill Questions:

• How does the alphabet of lines contribute to the clarity of a drawing?
• What is the purpose of each line type? What are examples of each?