Learning the different types of lines will allow you to understand the intent of the drafter. These different line type are universally applied and are used throughout the drafting industry.

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Blueprint Reading

• Learning the different types of lines will allow
  you to understand the intent of the drafter.
  These different line type are universally applied
  and are used throughout the drafting industry.
• By drawing different line weights and patterns,
  we can differentiate the lines meanings even
  when they are single color drafts (As with
  original Blueprints).

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Interpreting Lines

• Read with the understanding that you will be
  asked to recall both the description and the
  purpose for each of the lines.

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Note the first two lines
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Answer Review 1a using this drawing
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Use this drawing to answer Review B (Also refer
to reading).