What is the definition of "profile of a line"?
A two-dimensional profile tolerance that describes the allowable variability in the contour of the edge seen in the section view.

Learn more about profile of a line in the class Basics of Geometric Dimensioning and Tolerancing 140 below.

## Shop Essentials (Applied Mathematics) Training

Class Information
 Tooling U-SME classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and will take approximately one hour to complete.
 Class Name: Basics of Geometric Dimensioning and Tolerancing 140 Description: This class introduces the symbols and interpretation of geometric tolerancing as described in the ASME Y14.5M-1994 standard. Difficulty: Beginner Number of Lessons: 21 Language: English

Class Outline
• Objectives
• Geometric Dimensioning and Tolerancing
• Geometric Tolerancing vs. Limit Dimensions
• Geometric Characteristics
• Feature Control Frame
• Material Condition Modifiers
• Straightness
• Flatness
• Circularity
• Cylindricity
• Profile of a Line
• Profile of a Surface
• Angularity
• Perpendicularity
• Parallelism
• Position
• Concentricity and Symmetry
• Circular Runout and Total Runout
• The Most Common Characteristics
• Interpreting Geometric Characteristics
• Summary

Class Objectives
• Define geometric dimensioning and tolerancing.
• Distinguish between geometric tolerancing and limit dimensions.
• Identify the groups of geometric characteristics.
• Describe the contents of the feature control frame.
• Define the material condition modifiers.
• Describe the straightness tolerance.
• Describe the flatness tolerance.
• Describe the circularity tolerance.
• Describe the cylindricity tolerance.
• Describe the profile of a line tolerance.
• Describe the profile of a surface tolerance.
• Describe the angularity tolerance.
• Describe the perpendicularity tolerance.
• Describe the parallelism tolerance.
• Describe the position tolerance.
• Describe the concentricity tolerance.
• Describe the symmetry tolerance.
• Describe the circular runout tolerance.
• Describe the total runout tolerance.
• Identify the most common tolerances.
• Describe the application of tolerances.

Class Vocabulary

Vocabulary TermDefinition
A three-dimensional orientation tolerance that describes the allowable variability in the angular relationship between a surface and a datum.
The Dimensioning and Tolerancing standard.
A two-dimensional runout tolerance that describes the distance between the surface and axis of a circular feature.
A two-dimensional form tolerance that describes the allowable variability in the shape and appearance of a circle in a section view.
Sharing the same axis.
A three-dimensional locational tolerance that describes the location of opposing points in cylindrical features with respect to a datum reference.
A three-dimensional form tolerance that describes the allowable variability in the shape and appearance of a cylinder.
A specified point, line, or plane that acts as a point of reference for a feature.
The combination of points, lines, and planes that define three dimensions for a part.
The box that contains the geometric tolerancing requirement information for one condition of the part.
A three-dimensional form tolerance that describes the allowable variability in the shape and appearance of a surface that lies in a plane.
A group of geometric characteristics that describes the shape of the feature.
The mathematical specification applied to a feature.
A three-dimensional tolerancing system that describes a feature and its relationships in mathematical language.
The circumstance of the feature with the least material during which the geometric tolerance applies.
A two-dimensional tolerancing system that describes a feature in absolute maximum and minimum dimensions.
A group of geometric characteristics that describes the placement of features on the part.
The circumstance of the feature during which the geometric tolerance applies.
The circumstance of the feature with the most material during which the geometric tolerance applies.
A group of geometric characteristics that describes the angular relationship between features.
A three-dimensional orientation tolerance that describes the equal distance between pairs of points, lines, or planes.
A three-dimensional orientation tolerance that describes the allowable variability in the 90 degree angular relationship between a surface and a datum.
A three-dimensional location tolerance that describes the exact location with respect to a datum reference.
A two-dimensional profile tolerance that describes the allowable variability in the contour of the edge seen in the section view.
A three-dimensional profile tolerance that describes the allowable variability in the contour of a surface.
A group of geometric characteristics that describes the appearance from the two-dimensional section view.
The circumstance of the feature with any amount of material, for any size, during which the geometric tolerance applies.
A group of geometric characteristics that describes surfaces around an axis.
A two-dimensional form tolerance that describes allowable variability in the shape and appearance of a line in a section view.
A three-dimensional locational tolerance that describes the location of opposing points with respect to a datum reference.
The acceptable variation from a specified dimension.
The space created by the cushion of tolerance.
A three-dimensional runout tolerance that describes the distance between a surface and axis.