The pitch and the number of divisions, on the circular scale, for a given screw gauge are 0.5 mm and 100 respectively. When the screw gauge is fully tightened without any object, the zero of its circular scale lies 3 divisions below the mean line. The readings of the main scale and the circular scale, for a thin sheet are 5.5 mm and 48 respectively, the thickness of this sheet is :
Text Solution
Verified by ExpertsThe correct answer is:
D
Pitch = 0.5 mm
L.C. = 
Actual value = 5.5 mm+ (48 + 3) × 5 × 10 –3 mm
= 5.755 mm
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