alleryA screw has 1 mm lead and 10 mm outer diameter. A 1 mm axial move becomes a rim movement of about:
A10 mm
B31.4 mm
C62.8 mm
D3.14 mm
Answer & Solution
Correct answer: B. 31.4 mm
One turn moves a point on the rim by the circumference, 10 times pi, which is about 31.4 mm.
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