Blueprint Reading Skills Explained
Produced by Delmar Thomson Learning


1.08 hours

  What Students Learn:
When interpreted properly, blueprints reveal the essential information needed to complete a manufacturing process. Students will learn how to interpret what they see and understand the specific meanings of all the lines and symbols on the "prints".

View and Line Interpretation (VB0401)
Dimensions and Tolerance Specifications (VB0402)
Auxiliary Print Information and Geometric Tolerancing (VB0403)
Welding Symbols (VB0404)



View and Line Interpretation


  • Show the orthographic projection.
  • Explain the sequential presentation of part views.
  • Contain examples of auxiliary views.
  • HALF sections.
  • REVOLVED sections.
  • Define and identify the various lines found on the blueprint.


    Dimensions and Tolerance Specifications


  • Show the use of DETAIL and ASSEMBLY drawing.
  • Explain the conventional and the BASELINE method of print dimensioning.
  • Detail the use of DATUMS.
  • Show how dimensions that are not given on the print must be derived by the fabricator.
  • Explain how tolerancing specifications are given.


    Auxiliary Print Information and Geometric Tolerancing


  • Explain use of TITLE and REVISION box.
  • Show application of SCALE to the drawing.
  • Illustrate material list and hole legend.
  • Detail meaning of notes and symbols used on blueprints.
  • Demonstrate use of GEOMETRIC TOLERANCING symbols.


    Welding Symbols


  • Describe basic welding symbols.
  • Explain how the symbols are used by welders to follow plans.
  • Show examples of finished work based on symbols.
  • Feature actual blueprints for welding projects.


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