Question

5
A strip is to be rolled from a thickness of 30 mm to 15 mm using a two-high roll mill having rolls of diameter 300 mm. The coefficient of friction for unaided
bite should nearly be:
O
0.35
ps: A.
B.
O 0.5
C.
O 0.25
D. O 0.75
feeds a horizontal​

Answer 1

Answer:

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