tle 2nd sum test

• What are line symbols used in technical drawing referred to as?


  Alphabet of Lines
• Why is the use of line symbols important in technical drawing?


  They enable engineers/designers to express features of designed products clearly and accurately.
• What is key to successful drafting?

  A good technical knowledge of various line characteristics.
• How do line features vary in technical drawings?


  By width and graphical representation.
• How is line significance conveyed in technical drawings?


  Through line weight or thickness.
• What do thicker lines in a drawing typically indicate?


  They express contrast and importance.
• What type of line is used to show the outline of an object?

  Object or visible lines.
• What are construction lines used for?


  To construct layout work.
• What do dimension lines indicate in a drawing?


  The size (span) of an object with a numeric value.
• How do dimension lines typically terminate?


  With arrowheads or tick markings.
• What do extension lines show in a technical drawing?


  The starting and ending of a dimension.
• What is the purpose of a leader line?


  To show notes or labels for size or special information about a feature.
• What do hidden lines represent in a drawing?


  Non-visible surfaces.
• When can hidden lines be omitted in a drawing?


  If they clutter the drawing.
• What do center lines indicate in a drawing?


  The center of holes, circles, and arcs.
• What is the purpose of cutting/viewing plane lines?


  To show cutaway views or the plane of projection for a section view.
• What do short and long break lines represent?


  Cutaway views of a long section.
• What is the purpose of phantom lines in a drawing?


  To show alternate positions of moving parts.
• What do section lines indicate in a drawing?


  The material that has been cut through in a sectional view.
• What is lettering in drafting?


  The art of creating letters and text.
• What are the types of lettering used in drafting?


  1. Block Lettering: Simple and direct style.
  2. Script Lettering: Cursive and elegant style.
  3. Gothic Lettering: Bold and sturdy style.
  4. Roman Lettering: Classical style.
  5. Italic Lettering: Slanted and elegant style.
• What is the significance of uppercase letters in drafting?


  They are capital letters used for clarity.
• What are Speedball pens used for in drafting?

  To create different styles of lettering.
• What are the styles of Speedball pens?


  1. Style A: Square tip.
  2. Style B: Round tip.
  3. Style C: Wedge tip.
  4. Style D: Oval tip.
• What are single stroke letters used for?


  For technical drafting.
• What is kerning in lettering?


  The uniformity or spacing and inclination of lines.
• What are the considerations for lettering in drafting?


  • Normal Letters: Right spacing is needed.
  • Extended Letters: Wider than normal, only for designs.
  • Compressed Letters: Used when space is limited.