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Fitness for Service Assessment 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 579-1/ASME FFS-1, what is the primary purpose of a Level 1 FFS assessment?

    Answer: Apply conservative screening criteria that can be performed by an inspector in the field

    Level 1 is the most conservative and simplest assessment level, using screening criteria that inspectors can apply with minimal calculations.

  2. When performing a FFS assessment for local thin areas (LTA) using API 579, which parameter is used to characterize the extent of metal loss in the longitudinal direction?

    Answer: Longitudinal flaw length parameter (λ)

    The longitudinal flaw length parameter (λ) normalizes the flaw length relative to vessel diameter and wall thickness to characterize LTA extent.

  3. In a FFS assessment for hydrogen blistering, which condition would MOST LIKELY require a Level 3 assessment?

    Answer: Multiple blisters with through-thickness cracking or Step-Wise Cracking (SWC)

    Multiple blisters exhibiting through-thickness cracking or step-wise cracking indicate severe HIC damage requiring a detailed Level 3 assessment.

  4. The remaining strength factor (RSF) concept in API 579 FFS assessments is used to:

    Answer: Compare the strength of the damaged component to the undamaged component

    RSF quantifies how much load-carrying capacity remains in a damaged component relative to the undamaged condition.

  5. For a weld with a detected planar flaw, which API 579 Part addresses the FFS evaluation methodology?

    Answer: Part 9 — Crack-Like Flaws

    API 579 Part 9 covers the FFS assessment methodology for crack-like flaws including weld flaws using fracture mechanics.

  6. In a FFS assessment, the term 'future corrosion allowance' (FCA) refers to:

    Answer: The expected metal loss between the assessment date and the next planned inspection

    FCA is the anticipated metal loss from the assessment date to the next planned inspection or end of equipment life.

  7. When a FFS assessment results in an RSF below the allowable RSF (RSFa), the recommended course of action is to:

    Answer: Reduce the MAWP or repair/retire the component

    If RSF < RSFa, the equipment does not meet the FFS acceptance criteria and must either be de-rated to a lower MAWP, repaired, or retired.