Vernier Caliper readings = Main scale reading + (ern er sc le read ng : .east . un., , should be ing Mi rometerre wings = Main ale re wing + (Microme er pale reading xle-st count) should be in mm. Pur* A: Volume of an object b; usi 19 ver te calipe. i able 2 Dimension measurement o, objects by Vernier Iron Block Dimension Main scale Vernier :cale Final Reading I en :th Wi th Thickness Metal Cylinder Dimension Main scale Vernier Scale Final Reading . .ength Diameter