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## Mechanical Skills

This library consists of 4 interactive, on-line lessons. These lessons take approximately 30 to 45 minutes to complete.

Audience: This program is excellent for every employee in all disciplines.

Number of Courses: 4

### Course 1 – Introduction to Mechanical Print Reading

Prerequisites: None

Description: This is the first lesson in the iKNOW™ Mechanical Print Reading Library. This introductory lesson trains the learner to identify the various parts of mechanical drawings and their components.

Objectives:

• Identify reasons for using drawings and blueprints
• Recognize an assembly drawing and its components
• Identify the parts of a Title Block
• Identify the Parts List and its components
• Recognize the different types of notes and their purpose
• Recognize a detail drawing and its components

### Course 2 – Lines Used in Mechanical Print Reading

Prerequisites: Basic knowledge of assembly and detail is recommended.

Description: This is the second lesson in the iKNOW™ Mechanical Print Reading Library. This lesson explains the types of lines used in mechanical print reading and what they represent.

Objectives:

• Identify visible lines and hidden lines and what they represent
• Describe three uses for phantom lines
• Describe three different break lines and their function
• Recognize center lines
• Recognize dimension lines
• Recognize cutting plane lines
• Recognize extension lines
• Recognize section lines

### Course 3 – Dimensions in Mechanical Print Reading

Prerequisites: Basic knowledge of assembly and detail drawings and lines is recommended.

Description: This is the third lesson in the iKNOW™ Mechanical Print Reading Library. This lesson explains the use of dimension and extension lines in mechanical print reading, and how to calculate dimensions, tolerance, and limits. The use of surface finish designations is also discussed.

Objectives:

• Recognize and define dimension lines
• Recognize and define extension lines
• Identify and measure dimensions on circular features
• Use calculated dimensions
• Demonstrate how calculated dimensions are used and why
• Define and calculate tolerance
• Define and calculate limits
• Differentiate types of surface finish designations

### Course 4 – Orthographic Projection

Prerequisites: Knowledge of assembly and detail drawings, lines, and dimensions is recommended.

Description: This is the final lesson in the iKNOW™ Mechanical Print Reading Library. This lesson trains participants in the use of orthographic projections in mechanical print reading. Pictorial drawings and various views used in mechanical print reading are demonstrated. The lesson also discusses aspects of sectional views, threaded fasteners, and how to identify thread designations.

Objectives:

• Define an orthographic projection
• Identify the purpose of an orthographic projection
• Relate orthographic views to projections
• Relate how first and third angle projections are used
• Describe what a third angle looks like
• Identify the symbol for each angle in the title block
• Define the three types, characteristics, and uses of pictorial drawings: isometric, oblique and perspective
• Recognize sectional views and define why sectional views are used
• Identify the four types of sections