Which of the following is used in checking the instruments to measure angles with great accuracy?

What is the length of AB in the following scale?

We can draw diagonal scale for meter, feet, inch.

From the given scale we can measure 3 feet 10”.

From the following figure what is the maximum length that can be measured?

The graduations of which scale is derived from the primary scale?

A plain scale is made which shows 6 meters of maximum length and sub division is decimeter with a R.F. of 1 /60. How muc…

The scale of the drawing is 1.0 mm = 1.0 m, then the Representative Fraction (RF) is______</p>