How does API 650 address seismic requirements for tanks?

• A. It provides guidelines for cosmetic modifications.
• B. It offers guidelines for seismic resilience.
• C. It ignores seismic factors completely.
• D. It only applies to non-seismic zones.

Answer: (B)

The correct answer highlights that API 650 offers guidelines for seismic resilience, which is essential for ensuring the structural integrity and safety of welded tanks used for oil storage in areas that may experience seismic activity. API 650 acknowledges the importance of these guidelines by providing criteria for designing tanks that can withstand seismic forces. This involves considerations for material selection, tank design, anchoring, and other structural elements that enhance a tank's ability to endure ground movement without failure.

By addressing seismic resilience, API 650 helps mitigate risks associated with potential earthquakes, ensuring both environmental protection and the safety of personnel. This guidance is particularly important for facilities located in seismic zones where the likelihood of earthquakes is significant. Having robust seismic provisions is essential in minimizing the potential for tank failures, leaks, or catastrophic incidents in the event of seismic events, thereby upholding industry safety standards.

In contrast, the other options either mischaracterize the standard or downplay its relevance to seismic considerations, which is why they do not represent an accurate reflection of API 650’s stance on seismic requirements.