🔍 Key Concepts

• How to read a 0–1 inch vernier micrometer: sleeve (0.025 in increments), thimble (0.001 in increments), and the vernier scale (0.0001 in increments) • On a vernier micrometer, the main reading comes from the last visible line on the sleeve scale to the left of the thimble edge • The exact ten‑thousandths (0.0001) digit comes from the vernier line that lines up exactly with a line on the thimble

💭 Think About

• First, decide what the base reading is on the sleeve: how many full 0.100 in and 0.025 in divisions are clearly visible to the left of the thimble edge in view B? • Next, look at the thimble: which 0.001 mark on the thimble is exactly aligned with the horizontal reference line on the sleeve? • Finally, locate which vernier line (0–9) lines up exactly with any thimble division, and add that many 0.0001 increments to your base reading

✅ Before You Answer

• Be sure you are not counting any sleeve divisions that are partially covered by the thimble; only fully visible lines to the left count • Confirm that you are using the vernier correctly: it refines the reading by 0.0001 in, not 0.001 in • After you total sleeve + thimble + vernier, compare your result to the choices and check that your answer is within a few ten‑thousandths (0.0001) of one of the options