Quality Graduate Engineer Trainee Interview Questions and Answers

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 1 mm and there are 10 divisions on the vernier scale, the least count would be 0.1 mm.

• The least count determines the precision of measurements that can be taken with the vernier caliper.