API 570 Practice Questions - API 570 Piping Inspector Exam

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A newly assigned inspector has no prior thickness history for a line. What is the best basis for establishing an initial corrosion rate?

Assume zero corrosion until enough readings are collected Use a conservative estimate based on service, materials, and similar experience until data is developed Use the nominal wall thickness as the corrosion rate Wait for a leak to confirm active damage

Correct Answer:

Use a conservative estimate based on service, materials, and similar experience until data is developed

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