A steel plate of 10 mm thickness is to be cold rolled. The mill has rolls of diameter 72 mm. If the co-efficient of friction μ = 0.3 the maximum possible thickness reduction in the first pass will approximately be . . . . . . . . %.
A. 10
B. 20
C. 30
D. 40
Answer: Option C
This Question Belongs to Metallurgical Engineering >> Mechanical Metallurgy
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