What is the maximum allowable misalignment for vertical joints in plates that are less than or equal to 5/8 in. thick?

• A. 1/8 in.
• B. 1/4 in.
• C. 1/16 in.
• D. 1/2 in.

Answer: (C)

The maximum allowable misalignment for vertical joints in plates that are less than or equal to 5/8 inch thick is set at 1/16 inch. This specification is derived from guidelines intended to ensure the structural integrity and quality of welded joints in tanks. When the misalignment exceeds this limit, it may lead to issues such as stress concentration, increased potential for cracking, and reduced load-bearing capacity. Maintaining this tight tolerance is crucial for ensuring effective welding processes and the overall reliability of the tank design. Proper alignment helps in achieving uniform weld quality and can significantly impact the longevity and safety of the storage tank in operation.