Determine the rpm(n) of the shaft. diameter(d)=25 mm, cutting speed(cs – McqOptions

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1.	Determine the rpm(n) of the shaft. diameter(d)=25 mm, cutting speed(cs)=50 m/min.
A.	636.9
B.	202.83
C.	10.615
D.	none of the mentioned
Answer» B. 202.83

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