Question

what is the reading of this 0 - 25mm micrometer graduated in 0.001mm? enter your answer in the box below out to one thousandths of a mm. if you need a bigger picture, right click on the image and select \open image in new tab\ (chrome browser - other browsers may have slightly different wording).

Explanation:

Step1: Read main - scale value

The main - scale reading is 5.5 mm. The half - millimeter mark is visible, so we add 0.5 mm to the 5 mm mark.

Step2: Read thimble - scale value

The thimble scale has 42.0 divisions aligned with the main - scale line. Since each division on the thimble scale represents 0.01 mm, the thimble - scale reading is \(42\times0.01 = 0.420\) mm.

Step3: Calculate total reading

The total reading is the sum of the main - scale and thimble - scale readings. So, \(5.5+0.420 = 5.920\) mm.

Answer:

5.920