1.02 mm 1.02mm 1.01mm 1.02mm 1.02mm
When the wire is removed and the jaws are closed, a reading of -0.02 mm is obtained. Which of the following gives the value of d witha precision appropriate to the micrometer?
A. 1.0 mm
B 1.00 mm
C. 1.038 mm
D 1.04 mm
Your readings then become four 1.04mm, and one 1.03mm.
The average of these readings is 1.038mm. However, since your micrometer is only accurate to +/- 0.01, the 3rd decimal place has no meaning here, and you have to round up to 1.04mm.