The co-efficient of friction alters by 5 times when a slab is hot rolled instead of cold rolling in a specific rolling mill. The maximum reduction in the thickness of the slab will increase by a factor of
A. 25
B. 5
C. 0.04
D. 1
Answer: Option A
This Question Belongs to Metallurgical Engineering >> Mechanical Metallurgy
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B. upper yield stress
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B. $$4 + \frac{{\sigma 3}}{5}$$
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A. P-1, Q-2, R-3
B. P-4, Q-3, R-1
C. P-3, Q-1, R-4
D. P-2, Q-1, R-3
A. the outer edges of the rod
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