Measuring MCQ - Machinist(Set-1) with Answers

21) Micrometer works on the principle of

Answer is:

Nut & bolt

Explanation:

The working principle of the Micrometer is based on screw and nut. (Rotational moment to linear moment) As we know as the screw rotates one revolution on the screw, then the screw moves linearly by one pitch distance

22) Which one of the following instrument is used to measure accurately the angle of taper ?

Answer is:

Vernier bevel protractor

Explanation:

Vernier bevel protractor is used to accurately measure the angle of taper

Which one of the following instrument is used to measure accurately the angle of taper ?

23) The least count of a vernier caliper is

Answer is:

0.02 mm

24) To convert the linear motion of the plunger of a dial test indicator to the rotary motion of the pointer, which one of the following mechanism is used ?

Answer is:

Rack and pinion mechanism

Explanation:

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.

To convert the linear motion of the plunger of a dial test indicator to the rotary motion of the pointer, which one of the following mechanism is used ?

25) Ratchet stop in the micrometer helps to

Answer is:

Control the pressure

Explanation:

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.