What do you understand by least count of a screw gauge?
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The smallest reading up to which a screw gauge can be measured is called least count of screw gauge.
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Micrometer screw gauge is defined as an instrument that is used for measuring the diameter of thin wires, thickness of small sheets such as glass or plastics.
Explanation:
- Least count of the screw is defined as the distance moved by the tip of the screw when turned through one division of the head scale.
- It can measure upto 1/10 of mm which is usually called the least count.
- Screw gauge is a measuring instrument which is based on the principle of a micrometer screw.
- It is consists of a U shaped frame.
- It can be used to measure the thickness of a thin metallic wire, metallic or plastic sheet.
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