API 510 - Pressure Vessel Inspector Practice Questions

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Pressure-Relieving Devices

A PSV removed from sour water service shows significant corrosion on the spring and guide surfaces, and the as-found set pressure is low. Which action BEST aligns with API RP 576 guidance for returning the PSV to service?

Choose one answer, check it, then continue.

Answer choices

Clean the valve and reinstall without testing since set pressure was low (conservative)

Repair/replace corroded components, verify material suitability for the service, and retest to confirm set pressure and proper operation before reinstalling

Increase set pressure above nameplate to compensate for corrosion

Reinstall the PSV with a rupture disk downstream to prevent corrosion

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API 510 - Pressure Vessel Inspector practice questions

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