Ques : What is Plain scale ?
Ans : A plain Scale is that which is used to prepare the drawings in two units i.e; meters and centimeters. These are available as full size, 50 cm = 1.00 metre, 40 cm = 1.00m , …….. 0.5 mm = 1.00 metre with R.F. 1:1, 1:2, 1:2.5, ……1 : 2000 respectively…..