10606140Dimensioning Practices
Course Information
Description
Mechanical Drafting dimensioning fundamentals are developed including conventional tolerancing practices using basic hole and shaft tolerancing methods. Standard dimensioning practices are applied on mechanical drawings in accordance with the current ASME Y14.5M standard.  
Total Credits
1
Prior Learning Assessment
  • Exam-College Developed Challenge Exam
Course Competencies
  1. Utilize conventional dimensioning techniques to describe size and shape accurately on an engineering drawing
    Assessment Strategies
    Performance
    Criteria
    Create and read a drawing at a specified scale
    Correctly place dimension lines, extension lines, angles, and notes
    Dimension circles, arcs, and inclined surfaces
    Dimension contours
    Use standard practices for dimensioning prisms, cylinders, holes, and curves
    Identify correct practices when reviewing dimensioning documentation
    Identify guidelines for the “do’s and don’ts” of dimensioning

  2. Apply additional guidelines for dimensioning
    Assessment Strategies
    Performance
    Criteria
    Describe the nominal size, tolerance, limits, and allowance of two mating parts
    Identify a clearance fit, interference fit, and transition fit
    Describe the basic hole and basic shaft systems
    Dimension mating parts using limit dimensions, unilateral tolerances, and bilateral tolerances
    Describe the classes of fit and give examples of each