Out of the following ,the most accurate instrument is,
a)Measuring tape b)Meter scale
c)Vernier caliper d)Micrometer screw gauge
Answers
(d) option is correct.
Explanation:
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SCREW GAUGE
The most accurate instrument is the MICROMETER SCREW GAUGE
KEY TAKEAWAYS FOR SCREW GAUGE:
* A screw gauge is a mechanical tool that allows you to precisely measure the diameter, radius, or thickness of a thin wire or thin metal sheet.
* The Pitch Scale, which is the major scale and is etched on the barrel with vertical lines, is one of two scales. The Circular Scale, which is carved horizontally on the thimble, is another option.
* The pitch scale indicates how far the spindle travels every revolution in millimeters (mm). A micrometer screw gauge is defined as a circular scale with one rotation equal to half a millimeter of screw displacement. When compared to the Vernier Caliper scale, micrometer gauges are more accurate and precise.