Scale Introduction
Scale Introduction Dimensions of large objects must be reduced to accommodate on standard-size drawing sheet. this reduction creates a scale of the reduction ratio, which is generally a fraction... such a scale is called as reducing scale and that ratio called as representative factor . For full-size scale R.F = 1 OR ( 1 : 1 ), Means drawing & object are of the same size. other RFs are described as : 1:10 1:100 1:1000 1:1,00,000 Similarly in case of tiny objections must be increased for the above purpose. hence this is called enlarging scale . here the ratio called representative factor is more than unity . Use the following formulas for the calculation in this topic: (A) representative factor ( R.F ) : = [katex]\frac{Dimansion\ of \ drawing}{Dimension\ of\ objects}[/katex] = [katex]\frac{Lenght\ of \ drawing}{Actual\ length}[/katex] = [katex]\sqrt{\frac{\ \ \ Area\ of\ drawing\ \ \ \ }{Actual\ area}}[/katex] = [katex]\sqrt[3]{\frac{Volume\ as\ per\...