Answer :
A dial indicator is a precision measuring instrument used to determine the displacement or variation in distance of an object from a reference point.
However, it does not directly indicate the diameter of the object being measured. The dial indicator typically consists of a needle or plunger that moves in response to changes in position, and a dial face with markings to display the measured displacement. While the dial indicator can be used to measure the movement or deflection of a surface, it requires additional calculations or conversions to determine the diameter accurately. The diameter of an object is typically measured using specialized tools like calipers, micrometers, or bore gauges, which provide direct readings specifically designed for diameter measurements.
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