Question

because of their complex shape, weld stresses that set up during welding and cooling may be severe. to avoid weld cracking during these applications, select a low-hydrogen electrode with low ductility.

true
false

Explanation:

Analyze the statement's claim

Using the Low Hydrogen Electrodes knowledge point

The statement claims that to avoid weld cracking in complex shapes with severe weld stresses, one should select a low-hydrogen electrode with "low ductility."

Evaluate the role of ductility

Ductility is the ability of a material to deform plastically without fracturing. In high-stress applications (such as welding complex shapes), high ductility is essential because it allows the weld metal to yield and relieve internal stresses during cooling, thereby preventing cracking. Selecting an electrode that yields weld metal with low ductility would increase the risk of cracking under severe stresses. Low-hydrogen electrodes are actually designed to provide high ductility and toughness. Therefore, the recommendation to select an electrode with "low ductility" is incorrect.

Answer:

• True
• (B) False (Correct answer)