The shear strength of the weld materials is equal to 200MPa. The factor of safety is

Question

A 60mm long and 6mm thick fillet weld carries a steady load of 15kN along the weld. The shear strength of the weld materials is equal to 200MPa. The factor of safety is          

      (a) 2.4                                                                 (b) 3.4

      (c) 4.8                                                                 (d) 6.8