Free API API-571 Practice Test & Real Exam Questions

  • Exam Code/Number: API-571
  • Exam Name/Title: Corrosion and Materials Professional
  • Certification Provider: API
  • Corresponding Certification: ICP Programs
  • Exam Questions: 151
  • Updated On: Jun 24, 2026
To detect wet insulation that might give rise to corrosion under insulation, which nondestructive examination (NDE) technique would be most useful?
Correct Answer: A Vote an answer
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The rate of spheroidization is affected by:
Correct Answer: A Vote an answer
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The likelihood of brittle fracture is best lessened by:
Correct Answer: A Vote an answer
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In what damage mechanism does hydrogen combine with carbides in steel to form bubbles or cavities of CH#?
Correct Answer: D Vote an answer
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(Which of the following would be utilized in prevention or mitigation strategies against hydrochloric acid corrosion?)
Correct Answer: D Vote an answer
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(Which of the following can be used to confirm 885 °F (475 °C) embrittlement?)
Correct Answer: B Vote an answer
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Sulfidation of iron-based alloys usually:
Correct Answer: B Vote an answer
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Which of the following is related to all wet H#S damage mechanisms?
Correct Answer: C Vote an answer
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The form of corrosion most often caused by sulfidation is typically described as:
Correct Answer: C Vote an answer
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Which of the following is the best description of the surface appearance of metals with chloride stress corrosion cracking?
Correct Answer: D Vote an answer
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