Maricopa Community Colleges  IMC129   19976-99999 
Official Course Description: MCCCD Approval: 05/27/97
IMC129 19976-99999 LEC 2 Credit(s) 2 Period(s)
Trade Math III
Use of equivalent tables, unit conversion tables, and thermal expansion principles. Calculation of take-outs using trigonometry and right angle trigonometry. Calculation of offsets, use of square roots, use of calculators, folding rule and framing square. Prerequisites: None.
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MCCCD Official Course Competencies:
 
IMC129   19976-99999 Trade Math III
1. Convert fractions to decimals, English to metric, and use tables of equivalents and unit conversion tables. (I)
2. Explain thermal expansion. (II)
3. Calculate angles of piping offsets using trigonometry. (III)
4. Calculate rolling offsets. (IV)
5. Calculating take-outs, using trigonometry. (V)
6. Use a calculator to find square roots. (VI)
7. Calculate offsets around obstructions. (VII)
8. Use a folding rule to determine angles. (VIII)
9. Solve rolling offsets with a framing square. (IX)
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MCCCD Official Course Outline:
 
IMC129   19976-99999 Trade Math III
    I. Table of equivalents
        A. English
        B. Metric
        C. Fractions
        D. Linear
        E. Square
        F. Cubic
        G. Liquid
        H. Unit Conversion Tables
      II. Thermal expansion
          A. Length
          B. Temperature
          C. Types of Material
          D. Area
          E. Volume
          F. Calculations
        III. Trigonometry
            A. Definition
            B. Application in pipefitting
            C. Pythagorean Theorem
            D. Piping offset as a right triangle
            E. Trigonometric functions of the reference angle
              1. Sine
              2. Cosine
              3. Tangent
              4. Cosecant
              5. Secant
              6. Cotangent
          IV. Calculating rolling offsets
              A. Definition
              B. Using cosecant
              C. Using a framing square to lay out rolling offset
              D. Interpolation
                1. Numerical values from angles
                2. Angles from numerical values
            V. Calculating take-outs
                A. Definitions
                B. Formula for finding the take-out of any welding elbow
              VI. Square root calculations
                  A. Definition
                  B. Terminology
                  C. True Offset
                  D. Using calculator for finding square roots
                    1. Function keys
                    2. Conversion tables
                VII. Calculating offsets around obstructions
                    A. Finding the setback and the diagonal
                    B. Forty-five degree angle offsets around obstructions
                    C. A + B + (C X 1.414)
                    D. Layout a square corner using 5-4-3 ratio
                  VIII. Determining angled fittings
                      A. Open folding rule to 1" & 24"
                      B. Touch tip at various points to create angles
                    IX. Solving rolling offsets with framing square
                        A. Lay tape measure on framing square
                        B. Touch rise and offset
                        C. Multiply distance between two points by constant for angled fitting
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