plain scale
Plain Scale Plain scale : this type of scale represents two units as a unit and it's sub-division. Problems on plain scale 1] Draw a scale of 1 cm = 1m to read decimeters, to measure a maximum distance of 6 m. show on it a distance of 4 m and 6 dm. CONSTRUCTION : Calculate R.F = [katex]\frac{Dimansion\ of \ drawing}{Dimension\ of\ objects}[/katex] R.F = 1 cm / 1 m = 1/100 length of scale = R.F × maximum distance = 1/100 × 600 cm = 6 cms Draw line 6 cm long and divide it into 6 equal parts. Each part will represent a larger division unit. subdivide the first part which will represent the second unit or fraction of the first unit. place (0) at the end of the first unit. Number the unit or right side of zero and subdivisions on the left-hand side of zero. Take height of scale 5 or 10 mm for getting a look of scale. After construction of scale mention it's RF and name of s...