Line types

• What is the purpose of continuous thin straight lines with zigzags?


  Used for visible edges and outlines
• What do dashed thin lines represent in technical drawings?


  Used for hidden outlines
• What is the function of chain thin lines?


  Used for centre lines
• What do chain thin double dash lines indicate?


  Used for fold lines
• What is the purpose of continuous thin irregular lines?


  Used as the limit to an interrupted view when an axis is not present
• What do chain thin thick lines at both ends signify?


  Used on cutting planes
• What are the uses of different linetypes in technical drawings?

  • Continuous thick: Used for visible edges and outlines
  • Continuous thin: Used for projection, dimensioning, leader lines, hatching, and short centre lines
  • Dashed thin line: Used for hidden outlines
  • Chain thin: Used for centre lines
  • Chain thin double dash: Used for fold lines
  • Continuous thin irregular: Used as the limit to an interrupted view when an axis is not present
  • Chain thin thick at both ends: Used on cutting planes