Question

Read the screw gauge shown below in the figure.
Given that circular scale has ` 100` divisions and in one complete rotation the screw advances by `1 mm`.
.

Answer 1

Correct Answer - A
` LC = ("pitch")/("Number of divisions on circular scale")`
`= (1mm)/(100)=0.01mm`
Linear scale reading =`10("pitch")=10 mm`
circular scale reading = `10("pitch")=10 mm`
=`0.65mm`
`:.` Total reading =`(10 + 0.65) mm=10.65mm`.