Engineering Graphics and Design (3110013)

Given data
$1 \mathrm{cm} = 1 \mathrm{m}$
Maximum Distance to be given $= 14 \mathrm{m}$
Indicate$= 12.4 \mathrm{m}$

To Find:
Representative Fraction [R.F.] = ?
Length of Scale = ?

Now,  
 
$\mathrm{R}.\mathrm{F}.=\frac{\mathrm{Length} \mathrm{of} \mathrm{the} \mathrm{Drawing}}{ \mathrm{Actual} \mathrm{length} \mathrm{of} \mathrm{Object} }$

$\mathrm{R}.\mathrm{F}.=\frac{1 \mathrm{cm}}{ 1 \mathrm{m} }$

$\mathrm{R}.\mathrm{F}.=\frac{1 \mathrm{cm}}{ 1 \times 100 \mathrm{cm} }$

$\mathrm{R}.\mathrm{F}.=\frac{1}{100 }$

Now,

$\mathrm{Length} \mathrm{of} \mathrm{Scale} = \mathrm{R}.\mathrm{F}. \times \mathrm{Maximum} \mathrm{Distance}$

$\mathrm{Length} \mathrm{of} \mathrm{Scale} = \frac{1}{ 100 } \times 14 \times 100$

$\mathrm{Length} \mathrm{of} \mathrm{Scale} = 14 \mathrm{cm}$