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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Damage Mechanisms and Corrosion Assessment | 22% | - High-temperature damage and material degradation - Cracking mechanisms (environmental, fatigue, creep) - Corrosion under insulation (CUI) and environmental degradation - Internal, external, and localized corrosion - Damage assessment and prioritization |
| Topic 2: Fitness-for-Service, RBI, and Pressure Testing | 12% | - Acceptance criteria and post-test evaluation - Hydrostatic, pneumatic, and leak testing rules - Risk-based inspection (RBI) principles and application - API 579/ASME FFS-1 screening and assessment |
| Topic 3: Design, Materials, and Fabrication Rules | 22% | - Positive material identification (PMI) and traceability - Welding, qualification, and PWHT requirements - Material selection, properties, and toughness requirements - MAWP, thickness, and joint efficiency calculations - Flanges, bolting, gaskets, and special components - ASME Section VIII, V, IX application |
| Topic 4: Repairs, Alterations, Rerating, and Mechanical Integrity | 16% | - Authorization and responsibility for work - Rerating, reclassification, and nameplate updates - Repair vs alteration definitions and procedures - Documentation and post-work verification - Pressure relieving devices and overpressure protection |
| Topic 5: Inspection Scope, Planning, and Data Evaluation | 28% | - Inspection interval determination and extension rules - Inspection methods and technique selection - Remaining life and corrosion rate calculations - Records review and baseline data collection - TML/CML selection and measurement planning - Code scope, jurisdiction, and regulatory requirements |
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NEW QUESTION # 125
Term ''E" used in shell thickness formula in AWE Sec. VIII Div.1, represents weld joint efficiency, whose value is equal to "1", if:
Answer: B
Explanation:
circumferential just need a spot radiography to attain joint efficiency of "1" but longitudinal welds undergo a hoop stress as well and roughly twice of the stress applied on a circumferential joint and hence require full radiography to attain a joint efficiency of "1".
NEW QUESTION # 126
Who determines if a temporary fillet weld patch may be used in a repair?
Answer: B
NEW QUESTION # 127
One of the steps when rerating a pressure vessel is the documentation of the:
Answer: B
NEW QUESTION # 128
Whose authorization is required as a minimum prior to the start of any repairs or alterations?
Answer: B
NEW QUESTION # 129
Discuss how API-510 addresses the issue of high-temperature hydrogen attack (HTHA) in pressure vessels.
Answer:
Explanation:
API-510 addresses the issue of high-temperature hydrogen attack (HTHA) by recommending specific materials and construction practices that are resistant to hydrogen embrittlement. The standard advises on the appropriate selection of steels with high resistance to hydrogen-induced cracking and specifies operating limits to minimize the risk of HTHA. Regular inspections are mandated to check for signs of HTHA, using advanced non-destructive testing techniques capable of detecting early stages of hydrogen damage. Additionally, API-510 provides guidelines for modifying operational practices to reduce hydrogen exposure and mitigate the risk of attack.
NEW QUESTION # 130
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