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API 570 Flashcards

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1. In a Positive Material Identification program, amaterial non-conformance is a test result that:

3.8 material nonconformance:

Is not consistent with the specified alloy.

2.

What is the remaining life of a piping system witha short-term corrosion rate of 0.010 in/yr (0.25mm/yr) and a long-term corrosion rate of 0.005

in/yr (0.13 mm/yr)? A minimum requiredthickness of 0.150" (3.8 mm), a remaining

thickness of 0.210" (5.3 mm), and an originalthickness of 0.270" (6.8 mm).

7.1.1 Long-term and short-term corrosion rates should be

compared to see which results in the shortest remaining life aspart of the data assessment.

3. How do you evaluate the effects of fire damage

on a piping system? 7.4 Utilizing API 579 Fitness-for-Service

4. The remaining life of a piping system shall be

calculated with what formula? 7.1.1 T actual - T minimum / corrosion rate



5. The owner-user shall specify industry qualified

UT Shear Wave Examiners when:

570 5.10 Trying to detect and size flaws for Fitness-for-Service evaluation.

6. What is the level of examination in a Material

Verification program?

578 3.5 level of examination:

The specified percentage of the number of components to be

examined.

7.

Substituting appropriate NDE procedures for apressure test after a repair may only be done

after:

570 8.2.6 Pressure Testing

Consultation with the inspector and the piping engineer.

8. API RP 579 provides procedures for:

570 5.3.11

API RP 579, Section 3 provides procedures for theassessment

of equipment for resistance to brittle fracture.

9.

When positive material identification (PMI) testingis required, portable X-ray fluorescence

spectrometer:

578 5.2.1 Portable X-ray Fluorescence

cannot be used to detect elements lighter than sulfur (S).



10. Piping system corrosion rates shall be calculated

on: 7.1.1 Either a short-term or long-term basis

11. API 578, Material Verification program for new

and existing alloy piping systems covers:

4.2.5 Components Covered in a MaterialVerification Program

Process valves (including control valves) and reliefvalves.

12.

A piping system with a high potentialconsequence of failure has a corrosion rate of 10

MPY, 0.010 in/yr (0.25 mm/yr), a retirement

thickness of .350" (8.9 mm), a required thickness

of .250 (6.4 mm), and an actual thickness today

of .500" (12.7 mm). What is the remaining life?

7.1.1 Remaining Life Calculations

13. Piping components identified by PMI as not

meeting the original piping specifications:

570 5.8

Would be targeted for replacement.

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