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  • Total Questions: 151
  • Updated on: Oct 14, 2026
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  • Total Questions: 151
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API API-571 Exam Overview:

Certification Vendor:AMPP (Association for Materials Protection and Performance) / API ICP
Exam Name:API 571 - Damage Mechanisms Affecting Fixed Equipment in the Refining Industry (Corrosion and Materials Professional Certification Exam)
Exam Number:API-571
Available Languages:English
Certificate Validity Period:3 years
Related Certifications:API 570
API 653
API 580
API 510
API 936
Exam Format:Computer-based testing (CBT), Multiple-choice
Recommended Training:API RP 571 Damage Mechanisms Training Providers
AMPP Training & Certification Courses
Exam Registration:Pearson VUE Exam Scheduling
AMPP API Individual Certification Program
Sample Questions: DOWNLOAD DEMO
Exam Way:Computer-based exam delivered via authorized testing centers (e.g., Pearson VUE)
Pre Condition:AMPP/API ICP certification requirements typically include relevant industry experience and may require prior inspection or corrosion-related certifications depending on eligibility route.
Official Syllabus URL:https://www.ampp.org/certification/api-individual-certifications

API API-571 Exam Syllabus Topics:

SectionObjectives
Topic 1: Corrosion Mechanisms- High-temperature corrosion
  • 1. Sulfidation
    • 2. Oxidation
      • 3. Carburization
        - Aqueous corrosion
        • 1. Uniform corrosion
          • 2. Pitting corrosion
            • 3. Crevice corrosion
              • 4. Galvanic corrosion
                • 5. Microbiologically influenced corrosion (MIC)
                  Topic 2: Materials Selection and Mitigation- Corrosion control strategies
                  • 1. Corrosion inhibitors
                    • 2. Coatings and linings
                      • 3. Material selection principles
                        Topic 3: Environmentally Assisted Cracking- Hydrogen-related damage
                        • 1. Hydrogen embrittlement
                          • 2. Hydrogen blistering
                            • 3. Hydrogen induced cracking (HIC)
                              - Stress corrosion cracking
                              • 1. Chloride stress corrosion cracking
                                • 2. Caustic cracking
                                  Topic 4: Refining Process-Specific Damage- Hydroprocessing units
                                  • 1. High-pressure hydrogen service degradation
                                    • 2. Hydrogen attack mechanisms
                                      - FCC and sulfur recovery units
                                      • 1. High-temperature sulfidic corrosion
                                        • 2. Erosion-corrosion interactions
                                          Topic 5: General Knowledge of Damage Mechanisms- Overview of degradation in refining environments
                                          • 1. Damage mechanism classification
                                            • 2. Materials performance fundamentals
                                              Topic 6: Metallurgical Damage Mechanisms- Embrittlement phenomena
                                              • 1. Temper embrittlement
                                                • 2. Sigma phase embrittlement
                                                  - High-temperature degradation
                                                  • 1. Creep damage
                                                    • 2. Graphitization
                                                      • 3. Thermal fatigue

                                                        API-571 (API) Exam: Your Questions Answered

                                                        API Corrosion and Materials Professional is an official AMPP (Association for Materials Protection and Performance) / API ICP exam, catalogued under the code API-571. A pass awards you the API 571 Corrosion and Materials Professional certification at the Professional level. It also supports progress toward API 510, API 570, API 653, API 580, API 936. Demand for this credential has stayed strong because it validates skills employers can use from day one.

                                                        AMPP/API ICP certification requirements typically include relevant industry experience and may require prior inspection or corrosion-related certifications depending on eligibility route.

                                                        Vendor policies shift over time, so confirm the current entry conditions before paying any registration fee; the official exam page is the authoritative source.

                                                        You can sign up for API Corrosion and Materials Professional through the official registration points listed here.

                                                        Regarding format, the exam is delivered Computer-based exam delivered via authorized testing centers (e.g., Pearson VUE).

                                                        AMPP (Association for Materials Protection and Performance) / API ICP recommends the following training for API Corrosion and Materials Professional candidates.

                                                        Course content builds understanding, but the exam grades answers. Bridge the two with the 151 practice questions in the TestKingFree API-571 package, and the theory starts converting into points.

                                                        Yes. A free demo of the API Corrosion and Materials Professional material is available on this page, so you can verify the quality of the questions and the expert-edited answers yourself. Once you purchase, updates are free for 365 days and the newest version is emailed to you automatically as it releases; after expiry, extending the update service costs 50% of the regular price.

                                                        A 100% money-back guarantee covers your purchase under defined conditions. If you take the API Corrosion and Materials Professional exam within 60 days of buying and fail, you can claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders, and the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, you may exchange rather than refund: two other exam products of equal value, free, with the update service on your original purchase kept intact.

                                                        Delivery is instant: files unlock for download upon successful payment and are automatically emailed to you within one minute. If nothing arrives within 2 hours, check spam and contact us by email or online service. Installation is unlimited across your computers.

                                                        API Corrosion and Materials Professional spans 6 official domains. The most heavily weighted include General Knowledge of Damage Mechanisms, Refining Process-Specific Damage, and Environmentally Assisted Cracking. The full topic list is published above on this page; let the weightings decide where your next study hour goes.

                                                        API Corrosion and Materials Professional Sample Questions:

                                                        Cracks formed by carbonate stress corrosion are best detected:

                                                        • A. ultrasonic shear wave examination because cracks develop internally.
                                                        • B. with an Acoustic Emission Testing technique.
                                                        • C. with a wet fluorescent magnetic-particle testing technique.
                                                        • D. with a penetrant testing technique used after abrasive or high pressure water blasting of the surface.
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: C  🗳️

                                                        Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).

                                                        Which of the following is related to all wet H#S damage mechanisms?

                                                        • A. Water vapor in the hydrocarbon phase
                                                        • B. Localized zones of weld HAZ hardness above 200 HB
                                                        • C. pH of <7 with dissolved H#S present
                                                        • D. Absorption and permeation of hydrogen
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: D  🗳️

                                                        Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).

                                                        The 300 series stainless steels (austenitic stainless steels) are generally resistant to oxidation up to what temperature?

                                                        • A. 1300°F (704°C)
                                                        • B. 1600°F (871°C)
                                                        • C. 1500°F (815°C)
                                                        • D. 1400°F (760°C)
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: C  🗳️

                                                        Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).

                                                        Polythionic acid stress corrosion cracking (PTASCC) can be detected by:

                                                        • A. Hardness measurements
                                                        • B. Liquid penetrant testing
                                                        • C. Magnetic particle testing
                                                        • D. Ultrasonic thickness measurements
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: B  🗳️

                                                        Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).

                                                        Which of the following will be most effective in finding sour water corrosion?

                                                        • A. Profile radiographic testing
                                                        • B. Spot ultrasonic testing
                                                        • C. Guided wave ultrasonic testing
                                                        • D. Angle beam ultrasonic testing
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: A  🗳️

                                                        Explanation: Only visible for TestKingFree members. You can sign-up / login (it's free).

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