In screw guage, the index line is divided into some equal divisions. This serves as the

Find the Least count of screw gauge whose head scale is divided into 200 divisions and pitch of the screw is 1 mm?

While measuring the diameter of a lead shot using a screw gauge,the reading on the pitch scale is found to be 7.5 mm and that on the head scale is 48. If the least count is 0.01 mm,the diameter of the lead shot is

Pitch of the screw x No of revolution made = 

If the zeroth division of the head scale is below the index line ,the error is said to be positive and the correction  is

When a screw gauge of Least count 0.01 mm is used to measure the diameter of a nail, the P.S.R. is found to be 1.5 mm, and H.S.R is 18. Find the diameter of the nail ?

The value of the head scale division which just coincides with the reference line is observed as

Equation for pitch of the screw is, p =

In screw gauge the barrel is tapered and has 100 or 50 equal divisions on it. This is called the

Pitch of the screw is 1 mm. Head scale has 100 divisions. Give the Least Count.