Question

8. When a screw gauge of the least count 0.01 mm is used to measure the diameter of a wire, the linear scale reading is 2 mm and 28th division of circular line coincides with the reference line. What is the diameter of the wire? If the screw gauge has a zero error of -0.04mm, calculate the correct diameter of the wire.​

Answer 1

Answer:

of circular scale division = 1 mm / 100 = 0.01 mm. Hence the corrected reading is 4.78 mm. Example 04: When a screw gauge with a least count 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 0.5 mm and the reading on the thimble is found to be 27 divisions