The correct answer is 4.
Uniaxial tension test (see the figure) is conducted on two different samples prepared with homogeneous, isotropic materials. One of the materials is brittle, whereas the other is ductile.
Assuming that there is no stress concentration at loading points, the failurewould initiate:


| Job | U | V | W | X | Y | Z |
| Workstation 1 | 5 | 7 | 3 | 4 | 6 | 8 |
| Workstation 2 | 4 | 6 | 6 | 8 | 5 | 7 |