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Reference: http://www.api.org/products-and-services/individual-certification-programs/certifications/api571#tab_exam-info

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API API-571 Exam Syllabus Topics:

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

                                                        API Corrosion and Materials Professional Sample Questions:

                                                        Cooling water corrosion of exchanger tubes is typically increased by:

                                                        • A. Increasing the oxygen content.
                                                        • B. Decreasing the cooling water outlet temperature.
                                                        • C. Decreasing the process temperature.
                                                        • D. Increasing the passivation layer.
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: A  🗳️

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                                                        Which family of alloys is more sensitive to hydrogen embrittlement during fabrication?

                                                        • A. Carbon -1/2 Molys
                                                        • B. Chrome-Molybdenum Alloys
                                                        • C. Duplex Stainless Steels
                                                        • D. High Strength Low Alloys
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: D  🗳️

                                                        Explanation: Only visible for PassLeaderVCE 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. 1500°F (815°C)
                                                        • B. 1400°F (760°C)
                                                        • C. 1600°F (871°C)
                                                        • D. 1300°F (704°C)
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: A  🗳️

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

                                                        (Chloride stress corrosion cracking of 300 series stainless steel initially becomes a concern at a metal temperature above:)

                                                        • A. 140 °F (60 °C)
                                                        • B. 100 °F (38 °C)
                                                        • C. 212 °F (100 °C)
                                                        • D. 180 °F (82 °C)
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: A  🗳️

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

                                                        Corrosion under insulation mitigation is best achieved by:

                                                        • A. Maintaining process temperatures at the boiling point of water
                                                        • B. Using appropriate coatings
                                                        • C. Implementing a carefully planned, periodic inspection program
                                                        • D. Using low-chloride insulation
                                                        Reveal Solution  Discussion  0

                                                        Correct Answer: B  🗳️

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