Question

The width of the plate being measured in the image using a metric micrometer is ____?

1) 6mm
2) 6.89 mm
3) 5.5 mm
4) 6.539mm

Answer 1

4) 6.539 mm. To accurately measure width with a metric micrometre, read the main scale for whole millimetres and the spindle scale for hundredths of a millimetre. The final width combines these readings.

Step-by-step explanation:

Without the image for reference, it is impossible to provide the exact width of the plate measured with the metric micrometre. However, I can explain how one would typically read a micrometre to determine the width. When using a micrometre, first look at the main scale to see the millimetre measurement, which often gives the most significant digits (whole millimetres), and then check the rotating spindle scale (thimble) for additional precision to the hundredths of a millimetre. For example, if the micrometre shows a measurement that reads 6 mm on the main scale and 53 on the thimble, this would give a size of 6.53 mm. If there were an additional 9 units on the vernier scale, the final measurement would be 6.539 mm.