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

API API-571 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Terms, Definitions, and Acronyms5%
Topic 2: High-Temperature Corrosion and Degradation15%- Carburization
- Metal Dusting
- Graphitization
- Decarburization
Topic 3: Other Damage Mechanisms15%- Microbiologically Influenced Corrosion
- Cavitation Damage
- Erosion and Erosion-Corrosion
- Liquid Metal Embrittlement
Topic 4: Environmentally Assisted Cracking25%- Caustic Stress Corrosion Cracking
- Chloride Stress Corrosion Cracking
- Sulfide Stress Cracking
- Hydrogen Embrittlement
Topic 5: Mechanical and Metallurgical Failure Mechanisms15%- Thermal Fatigue
- Brittle Fracture
- Creep and Stress Rupture
- Mechanical Fatigue
Topic 6: Uniform or Localized Loss of Thickness25%- Oxidation and Scaling
- Hydrochloric Acid Corrosion
- Ammonium Bisulfide Corrosion
- Sulfidation
- Corrosion Under Insulation (CUI)

API Corrosion and Materials Professional Sample Questions:

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

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

Correct Answer: D  🗳️

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In most cases, brittle fracture occurs only at:

  • A. Temperatures below ambient in thick sections
  • B. High temperatures in areas of high stress concentration
  • C. Temperatures below the Charpy impact transition temperature
  • D. Temperatures above the Charpy impact transition temperature
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Differential expansion in bimetallic welds can give rise to:

  • A. Reheat cracking
  • B. Thermal fatigue
  • C. Galvanic cracking
  • D. Stress corrosion cracking
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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

Which of the following generally manifests itself as a subsurface damage mechanism?

  • A. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
  • B. Amine Stress Corrosion Cracking
  • C. Caustic Cracking
  • D. Sulfide Stress Corrosion Cracking (SCC)
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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

Polythionic acid stress corrosion cracking is:

  • A. Rarely found in process furnaces.
  • B. Found only in low carbon grades of austenitic stainless steel.
  • C. Typically localized and may not be evident until a leak appears.
  • D. Identified by transgranular cracking on the process side of equipment and piping.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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