Practice Test Geeks(API 510) API 510 Inspector Certification Practice Test
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Code Requirements Flashcards

7 cards from real API 510 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. According to API 510, what is the minimum required thickness (Tmin) concept used for?

    Answer: To determine the thickness below which a component is no longer fit for continued service

    Tmin is the minimum required thickness below which a pressure vessel component cannot remain in service without repair, alteration, or retirement.

  2. Under API 510, which of the following conditions requires an on-stream inspection rather than an internal inspection?

    Answer: When entry is physically impossible or creates a greater hazard than the inspection itself

    API 510 permits on-stream inspection as an alternative to internal inspection when vessel entry is impractical or would create a greater hazard.

  3. API 510 defines the term 'pressure-containing parts' to include which of the following?

    Answer: Shells, heads, nozzles, manways, and other components exposed to internal pressure

    Pressure-containing parts include all components that form the pressure boundary, such as shells, heads, nozzles, and manways.

  4. When API 510 allows the next inspection interval to be set based on half-life, what does 'half-life' mean?

    Answer: Half the time it would take for corrosion to reduce wall thickness to Tmin

    Half-life is the time it would take corrosion to consume half the remaining corrosion allowance (i.e., half the time to reach Tmin).

  5. According to API 510, what is the maximum inspection interval for an internal or on-stream inspection of a pressure vessel in typical service?

    Answer: 10 years

    API 510 sets a maximum interval of 10 years for internal or on-stream inspection, unless a longer interval is justified by RBI.

  6. Under API 510, who has the authority to approve an extension of the maximum inspection interval beyond the code limits using risk-based inspection (RBI)?

    Answer: The owner/operator with concurrence from the inspector and an engineer

    RBI-based interval extensions require concurrence from the inspector and an engineer experienced in pressure vessel technology, with the owner/operator responsible for the program.

  7. API 510 requires that inspection records include which minimum piece of information for each thickness measurement location?

    Answer: The location of the measurement, thickness reading, and date

    Inspection records must identify the measurement location, the actual thickness reading, and the date of measurement to enable corrosion rate calculations.