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9. All tolerances apply for the full length, full width, and full depth of the feature unless otherwise specified.12. for decimal inch tolerances, a zero is never placed before the decimal point for values less than 1 inch.14. Two types of direct tolerancing methods are limit tolerancing and plus and minus tolerancing.18. Angular units of measurement are specified either in degrees and decimal parts of a degree or degrees, minutes, and seconds.Chapter 3:1. Form controls have no datum features.
2. Flatness is the most common form tolerance.3. Orientation controls indicates an angular relationship with specified datum features.4. Datum feature symbol is the symbol used to identify physical features of a part as a datum feature andshould not be applied to centerlines, center planes, or axes.11. feature control frameThe position tolerance requires The axis of the controlled featureMust lie within a cylindrical tolerance zone.010 in diameterAt maximum material condition (MMC)20. A theoretically exact dimension is called a basic dimension27. A feature of size with the maximum amount of material within the stated limits of size is called maximum material condition (MMC).
Pertains toType of ToleranceGeometric CharacteristicsSymbolIndividual feature onlyFormStraightnessFlatnessCircularityCylindricityIndividual feature orrelated featuresProfileProfile of a lineProfile of a surfaceRelated featuresOrientationAngularityPerpendicularityParallelismLocationPositionConcentricitySymmetryRunoutCircular runoutTotal runoutFigure 3-36