Surveying - Engineering

Q1:

The least count of a vernier scale is

A sum of the smallest divisions of main and vernier scales

B value of one division of the primary scale divided by total number of divisions of vernier scale

C value of one division of vernier scale divided by total number of divisions of primary scale

D none of these.

ANS:B - value of one division of the primary scale divided by total number of divisions of vernier scale

It's none of these! The Least count of a vernier is the smallest division on the main scale to a number of divisions on the Vernier scale! MSD/NO OF VERNIER DIVISIONS.