Scale is defined as the fixed proportion at which every distance between locations of the point on the map is equal to their corresponding distances between their positions on the ground.

The scale can be represented by two ways. They are:

Scale: 1cm=1m or 1cm=100cm or 1:100

Representative fraction: RF =  \( \frac{1}{100} \)

 

The various types of scales on the basis of proportion are as follows:

a. Reducing scale

If the dimensions on the drawing is smaller than the actual dimensions of object, the scale adopted is called reducing scale. It is represented by 1cm=100cm or 1:100 or RF = \( \frac{1}{100} \)

b. Full size scale

If the dimension on the drawing is equal to the actual dimension of the object, the scale adopted is called full size scale. It is represented by 1cm=1cm or 1:1 or RF = \( \frac{1}{1} \)

c. Enlarging scale

If the dimension on the drawing is larger than the actual dimension of the object, the scale adopted is called enlarging scale. It is represented by 10cm=1cm or 10:1 or RF = \( \frac{1}{0.1} \)

Last modified: Wednesday, 29 May 2024, 11:09 AM