A center-point bending test was performed according to ASTM D198 procedure ona 2x4 wood lumberwith a span of 4 ft and the 4 in. sidepositioned vertically. If the maximumload was 240 kips and the correspondingdeflection at the mid-span was 2.4 in., calculate themodulus ofrupture and the apparent modulus of elasticity.

The power source in a certain welding setup generates 3500w that is transferred to the low carbon steel work with a heat transfer factor of 0.85. the melting factor in the operation is 0.45. a continuous fillet weld is to be made with a cross-sectional area of 23 mm2 determine the travel speed at which the welding can be accomplished.