1.

In a wire drawing operation, diameter of a steel wire is reduced from 10 mm to 8 mm. The mean flow stress of the material is 400 MPa. The ideal force requied for drawing (ignoring friction and redundant work) is:

A. 4.48 kN
B. 8.97 kN
C. 20.11 kN
D. 31.41 kN
Answer» C. 20.11 kN


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