What is the overall reading of a Metric Micrometer with an upper sleeve reading of 5.0mm, a lower sleeve reading of 0.50mm, and a thimble reading of 0.01mm?

To determine the overall reading of a metric micrometer, you need to combine the values from the upper sleeve, lower sleeve, and thimble readings correctly. The upper sleeve reading indicates the whole millimeters and is an important part of the overall reading.

In this case, the upper sleeve reads 5.0 mm, which provides the primary whole number component of the measurement. The lower sleeve reading adds an additional fractional millimeter, which is 0.50 mm. Therefore, when you combine these two components, you get:

5.0 mm (from the upper sleeve) + 0.50 mm (from the lower sleeve) = 5.50 mm.

Next, the thimble reading indicates an additional precision measurement, which in this case is 0.01 mm. To find the final overall reading, you add this thimble value to the previous sum:

5.50 mm + 0.01 mm = 5.51 mm.

Thus, the overall reading of the micrometer is 5.51 mm. This calculation demonstrates the correct process of accurately measuring using a micrometer, where each component contributes to the final result in a methodical manner. The value of 5.51 mm is