Least count of Vernier Caliper is 0.02 mm
23) The least count of a vernier caliper is
Related Measuring MCQ - Machinist(Set-1) with Answers
Rack and pinion mechanism
The dial test indicator or dial gauge amplifies the length or displacement and translate it into rotational motion of pointer over a circular scale using Rack and Pinion Mechanism. It is used for pointer over a circular scale.
Control the pressure
Ratchet stop is present at the end of thimble cap to maintain a uniform measuring pressure. By ratchet stop standard conditions of measurement are attained.