alleryA screw gauge has pitch 0.5 mm and 50 thimble divisions. What is its least count?
A0.05 mm
B0.01 mm
C0.1 mm
D0.001 mm
Answer & Solution
Correct answer: B. 0.01 mm
Least count is pitch divided by thimble divisions, so 0.5 mm over 50 gives 0.01 mm.
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