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Grade: 12th pass
        
A screw gauge has 100 divisions on circular scale and pitch is 0.5 mm. When we fix a wire between it's jaws, it reads 2 divisions on main scale and 48 divisions on circular scale. If the screw gauge has no zero error, radius of wire is 
(1) 2.48 mm
(2) 1.24 mm
(3) 0.62 mm
(4) 0.31 mm
one month ago

Answers : (1)

D Vishwaksen Reddy
31 Points
							
Pitch=0.5mm
No. Of divisions = 100
Least count=0.5/100=0.005
M.S.R=2
n=48
d=MSR+n×Least count
d=2+48×0.005=2.24mm
27 days ago
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