Final answer:
The distance from the toe of the weld to the intersection of the horizontal and vertical members in an equal leg concave fillet weld is the leg length, as this is equal to the length of the legs in such a weld.
Step-by-step explanation:
The question asks about the distance from the toe of the weld to the intersection of the horizontal and vertical members in an equal leg concave fillet weld. In such a fillet weld, the toe of the weld is at the edge of the weld furthest from the joint. The key to answering this question lies in understanding the terminology and geometry associated with welding.
The correct answer is (d) The leg length. This is because in an equal leg fillet weld, the legs are equal in length and the distance from the toe of the weld to the intersection of the horizontal and vertical members is the same as the length of each leg. The actual throat, effective throat, and weld size are terms that relate to different aspects of the weld geometry but not the distance in question.