Micrometer Screw Gauge Worksheet With Solution May 2026

Sleeve shows: 5 mm (half-mm line NOT visible) Thimble aligns: 32 divisions Reading = ______ mm

Sleeve shows: 3 mm (half-mm line NOT visible) Thimble aligns: 47 divisions Reading = ______ mm micrometer screw gauge worksheet with solution

8.50 + (3 × 0.01) = 8.53 mm

– Human hair is ~0.02–0.2 mm thick. A 0.01 mm resolution micrometer can measure it, though carefully. Quick Reference: Common Mistakes | Mistake | Correction | |---------|-------------| | Forgetting the half mm | Always check the short line above the main scale. | | Misreading thimble (e.g., 32 as 0.32) | That’s correct, but remember: 32 = 0.32 mm. | | Ignoring zero error | Always check and subtract/add before final answer. | | Parallax error | Read the thimble alignment straight-on, not at an angle. | Sleeve shows: 5 mm (half-mm line NOT visible)

Zero error = +0.04 mm (excess). True thickness = Scale reading – Zero error = 5.72 – 0.04 = 5.68 mm If zero error were negative (-0.04), you would add. | | Misreading thimble (e