Final answer:
A groove weld can transmit the full strength of the connected members, while a fillet weld's strength depends on various factors but can be very effective. Fillet welds are not inherently weaker than groove welds, but groove welds can have a greater area of effective strength when comparing welds of the same size and quality.
Step-by-step explanation:
The statement that a groove weld whose depth is the same as the thickness of the member and the assertion that fillet welds are not as strong as groove welds need to be addressed separately:
Comparison of Groove and Fillet Weld Strength
A groove weld is a type of weld that is made in the groove between the edges of two adjoining pieces. It can penetrate completely through the workpiece, effectively resulting in a strong weld. This type of weld is generally designed to transmit the full strength of the members being connected, making them ideal for circumstances where high strength is required.
On the other hand, a fillet weld is a triangular weld that is used to join two surfaces at approximately right angles to each other in a lap, tee, or corner joint. It is important to note that fillet welds are not inherently weaker than groove welds; the strength of a weld is dependent on various factors such as weld size, materials, and the quality of the weldment. Fillet welds can be very effective and are commonly used due to their simplicity and lower preparation costs. However, when comparing equal sizes, a properly made groove weld will typically have a greater area of effective strength compared to a fillet weld.
Therefore, the statement that fillet welds are not as strong as groove welds can be considered true in the context of welds of the same size and assuming other factors are comparable. The strength of a weld is contingent on its design, execution, and the requirements of the specific application it's used for.