## Technical Standards for Blueprint Reading

**Identify Prints**

__Language of the industry__

Identify how prints are produced

Care for prints properly

Identify the importance of prints

__Identify the importance of the steel rule__

**Reading a Steel Rul**eRead a fractional steel rule

Read a decimal steel rule

Read a metric steel rule

__Applied Mathematics__Identify common fractions

Add, subtract, multiply and divide common fractions

identify decimal fractions

Add, subtract, multiply and divide decimal fractions

Identify the metric system and metric numbers

Add subtract, multiply and divide metric numbers

__Read a fractional-inch scale__

**Measurement Tools**

Read a metric scale

Identify the parts of a micrometer

Read a decimal-inch micrometer

Read a metric micrometer

**Identify the alphabet of lines**

__Alphabet of Lines__

Identify where the various types of lines are used

Produce lines of various line weights

Produce the various types of lines

**Identify the materials needed to freehand technical sketch**

__Basic Technical Sketching Lettering and Dimensioning__

Properly sharpen a pencil

Properly hold a pencil for sketching

Sketch horizontal, vertical and inclined lines

Sketch arcs, circles and ellipses

identify aids used for freehand technical lettering

Read and produce Gothic-style technical lettering

Identify and follow guidelines for lettering

Produce letters with proper spacing

Identify types and proper placement of dimensions

__Define terms related to geometric construction__

**Geometric Construction**

Identify geometric shapes and geometric characteristics

__Explain orthographic projection and multiview drawing__

**Mutli View Drawings**

Select the best views to describe an object

Describe and object by reading a multiview drawing

Explain three visualization principles of orthographic multiview projection

Identify three dimensions of an object

List the three regular views

Identify three principal planes of projection I

dentify the three types of flat surfaces

Explain characteristics of cylindrical surfaces

Explain characteristics of fillets, rounds, runouts

__Identify the auxiliary view__

**Auxiliary Views**

Explain the benefits of auxiliary views

__Explain full sections__

**Section Views**

Identify half sections

Explain offset sections

Identify aligned sections

Explain broken-out sections

Compare revolved sections and removed sections

Identify partial sections'

Identify outline sections

Explain conventional practices applied to section views

**Identify terms used with dimensions Apply the choice and placement rules drafters use Identify the various types of dimensions**

__Dimensioning__

__Identify terms related to tolerancing__

**Tolerancing**

Explain how tolerances are expressed on a drawing I

dentify the metric system of indicating a tolerance by symbol