Latest API-571 Real Exam Questions, API API-571 Practice Test, Corrosion and Materials Professional

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API API-571 Exam Syllabus Topics:

SectionObjectives
Damage Mechanisms- Environment-Assisted Cracking
  • 1. Hydrogen Embrittlement
  • 2. Caustic Stress Corrosion Cracking
  • 3. Chloride Stress Corrosion Cracking (Cl-SCC)
  • 4. Hydrogen-Induced Cracking (HIC) / Stepwise Cracking
  • 5. Polythionic Acid Stress Corrosion Cracking (PTA-SCC)
  • 6. Ammonia Stress Corrosion Cracking
  • 7. Sulfide Stress Cracking (SSC) / Hydrogen Stress Cracking
  • 8. Carbonate Stress Corrosion Cracking
  • 9. Ethanol Stress Corrosion Cracking (SCC)
  • 10. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
  • 11. Amine Stress Corrosion Cracking
- High Temperature Corrosion (800ยฐF / 425ยฐC and above)
  • 1. Sulfidation
  • 2. Oxidation
  • 3. Metal Dusting
  • 4. Nitriding
  • 5. Fuel Ash Corrosion
  • 6. Carburization
- High-Temperature Hydrogen Attack (HTHA)
  • 1. Decarburization
  • 2. Internal Hydrogen Attack (IHA)
- Uniform or Localized Loss of Thickness
  • 1. Atmospheric Corrosion
  • 2. CO2 Corrosion
  • 3. Dealloying (Selective Leaching)
  • 4. Cooling Water Corrosion
  • 5. Flow-Accelerated Corrosion (FAC) / Flow-Assisted Corrosion
  • 6. Galvanic Corrosion
  • 7. Corrosion Under Insulation (CUI)
  • 8. Flue Gas Dew Point Corrosion
  • 9. Boiler Water / Condensate Corrosion
  • 10. Caustic Corrosion
  • 11. Microbiologically Influenced Corrosion (MIC)
  • 12. Soil Corrosion
- General / Mechanical
  • 1. Atmospheric Corrosion
  • 2. Hydrogen Embrittlement
  • 3. 885ยฐF (475ยฐC) Embrittlement
  • 4. Fatigue
  • 5. Zinc Embrittlement
  • 6. Creep / Stress Rupture
  • 7. Mechanical Fatigue
  • 8. Temper Embrittlement
  • 9. Softening (Spheroidization)
  • 10. Stress Relief Cracking
  • 11. Liquid Metal Embrittlement (LME)
  • 12. Cavitation
  • 13. Erosion/Erosion-Corrosion
  • 14. Vibration-Induced Fatigue
  • 15. Sigma Phase Embrittlement
  • 16. Thermal Fatigue
  • 17. Galvanic Corrosion
  • 18. Corrosion Under Insulation (CUI)
  • 19. Metal Dusting
  • 20. Dissimilar Metal Weld (DMW) Cracking
  • 21. Fretting / Fretting Corrosion
  • 22. Strain Aging
  • 23. Brittle Fracture
  • 24. Graphitization

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API-571 Reliable Exam Labs, API-571 Valid Braindumps Questions

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API Corrosion and Materials Professional Sample Questions (Q46-Q51):

NEW QUESTION # 46
Polythionic acid stress corrosion cracking is:

Answer: D

Explanation:
API RP 571 under Polythionic Acid Stress Corrosion Cracking (PTA SCC) specifies:
"Cracking is usually intergranular, and often localized, especially in sensitized austenitic stainless steels exposed to sulfur-containing environments during shutdown or cleaning."
"It is not always visible on inspection and may only become evident when a leak occurs." (Reference: API RP 571, Section 4.2.2.5 - PTA SCC) Hence, option C is correct as it best describes the detection difficulty and behavior of PTA SCC.


NEW QUESTION # 47
HTHA is dependant on temperature, hydrogen partial pressure, time and _________.

Answer: C


NEW QUESTION # 48
Sulfidation of iron-based alloys usually begins at metal temperatures above _____.

Answer: D


NEW QUESTION # 49
__________ caustic concentrations and ________ temperatures increase the likelihood and severity of cracking with caustic embrittlement.

Answer: C


NEW QUESTION # 50
Ammonium chloride salts may be whitish, greenish or _________.

Answer: D


NEW QUESTION # 51
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