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Center for Curriculum and Transfer Articulation
Geometric Dimensioning and Tolerance (GDT)
Course: MPT111MP

First Term: 2023 Fall
Lecture   3.0 Credit(s)   1.0 Period(s)   1.0 Load  
Subject Type: Occupational
Load Formula: T- Lab Load

Description: Controls of geometric dimensioning and tolerance (GDT) including the form, orientation, profile and location. Includes qualifying controls per engineering documentation for the American Society of Mechanical Engineers (ASME) Y14.5 2009 Standard.

MCCCD Official Course Competencies
1. Use engineering documentation to identify feature control symbols according to the appropriate standard of the American National Standards Institute (ANSI) or International Standards Organization (ISO). (I)
2. Interpret GDT symbols relative to the manufactured part. (II-IX)
3. Verify GDT symbols relative to the manufactured part. (II-IX)
4. Apply inspection principles to qualify GDT callout. (X)
5. Apply principles of GDT with functional gages. (X)
6. Apply mathematical skills to solve manufacturing problems. (XI)
7. Effectively document work. (I-XI)
8. Effectively work within a team structure. (I-XI)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.
MCCCD Official Course Outline
I. National and Industry Standards
   A. American National Standards Institute (ANSI)
   B. International Standards Organization (ISO)
   C. Manufacturer specific
D. Military specifications
II. Datum identification
   A. Immobilization of part by specifying datum features
   B. Application of datums
   C. Datum structure
   D. Target datums
   E. Degrees of freedom
      1. Linear
      2. Rotary
   F. 3-2-1 rule
III. Feature control frame
   A. Geometric control
   B. Shape of tolerance zone
   C. Tolerance limits
   D. Modifiers
   E. Datum
      1. Primary
      2. Secondary
      3. Tertiary
   F. Datum Modifier
IV. Location and tolerance
   A. True position
   B. Symmetry
   C. Concentricity
V. Form
   A. Flatness
   B. Straightness
   C. Circularity
   D. Cylindricity
VI. Profile
   A. Profile of a line
   B. Profile of a surface
VII. Orientation
   A. Perpendicularity
   B. Parallelism
   C. Angularity
VIII. Runout
   A. Circular runout
   B. Total runout
IX. Tolerance specification to machined features
   A. Thread classification
   B. Thread types
   C. Inspection methods
   D. Gears
   E. Splines
   F. Class fit
X. Inspection methods
   A. In-process inspection
   B. Plate inspection
   C. Coordinate Measurement Machine inspection
XI. Applied math for GDT
   A. Formula manipulation
   B. Right angle trigonometry with Pythagorean theorem
   C. Elements of geometry
   D. Dimensional analysis/unit conversion
   E. Calculation of true position with and without bonus
   F. Calculation of fit requirements
MCCCD Governing Board Approval Date: December 13, 2022

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.