If a tank is dented during installation but installed, the best testing approach for the future is

If a tank is dented during installation but installed, the best testing approach for the future is

• A. Cannot be tested, shouldn't be installed
• B. Non volumetric
• C. Overfill volumetric
• D. Underfill volumetric

Answer: (B)

When a tank is dented, volumetric testing becomes unreliable because the exact volume and geometry are no longer predictable. Non-volumetric tightness testing, which uses pressure-based methods that don’t depend on knowing or maintaining a precise tank volume, is the better approach. By pressurizing the tank and watching for a stable pressure over time (or using a comparable non-volume method), you can detect leaks without needing to fill to a specific volume. The dent can skew volume measurements, making overfill or underfill volumetric tests inaccurate, whereas a non-volumetric method directly assesses the integrity of the tank against leaks. So, using a pressure-based or other non-volume method provides a practical, reliable way to verify tightness after installation even with the dent.

When a tank is dented, volumetric testing becomes unreliable because the exact volume and geometry are no longer predictable. Non-volumetric tightness testing, which uses pressure-based methods that don’t depend on knowing or maintaining a precise tank volume, is the better approach. By pressurizing the tank and watching for a stable pressure over time (or using a comparable non-volume method), you can detect leaks without needing to fill to a specific volume. The dent can skew volume measurements, making overfill or underfill volumetric tests inaccurate, whereas a non-volumetric method directly assesses the integrity of the tank against leaks. So, using a pressure-based or other non-volume method provides a practical, reliable way to verify tightness after installation even with the dent.