Question

What metal is the screw of the screw gauge made and why?

Answer 1

Hint: Screw Gauge is a mechanical tool that makes it easy to measure thin wire diameter or radius or thickness or thin metal sheet thickness with maximum precision. This tool consists primarily of a U-shaped framework and a thimble-attached spindle (or screw). There are two scales referred to as the Pitch Scale, which is essentially a main scale and vertical lines are engraved on the barrel.

Complete answer:
1.The Hypothesis. An instrument used to accurately measure the diameter of a thin wire or the thickness of a sheet of metal is a screw gauge.
2.For making a screw gauge, gun metal is generally used. The reason is that with continuous use over a long time, the gun metal has less wear and tear.
3.An instrument used to accurately measure the diameter of a thin wire or the thickness of a sheet of metal is the screw gauge.
4.There is a ratchet on the head of the screw that avoids undue tightening of the screw. There is a circular scale on the thimble known as the head scale that is divided into equal parts of 50 or 100.
5. A micrometer, sometimes referred to as a micrometer screw gauge, is a device that incorporates a calibrated screw commonly used, along with other meteorological instruments such as dial, vernier, and digital caliper, for accurate measurement of components in mechanical engineering and machining as well as most mechanical trades.

Note:
A screw gauge operates on the screw principle. By measuring the rotation of the screw, this screw principle helps to convert smaller distances into greater ones. This amplifies and converts the smaller dimensions into larger ones. There's a linear movement of the main scale when we rotate the screw.