Corrosion and Materials Professional: API-571 Exam
"Corrosion and Materials Professional", also known as API-571 exam, is a API Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 151 Q&As to your API-571 Exam preparation. In the API-571 exam resources, you will cover every field and category in ICP Programs Certification helping to ready you for your successful API Certification.
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- Exam Code: API-571
- Exam Name: Corrosion and Materials Professional
- Certification Provider: API
- Corresponding Certification: ICP Programs
- Updated: Nov 05, 2026
- No. of Questions: 151 Questions & Answers with Testing Engine
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API-571 Practice Q&A's
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Who should take the API-571 exam
The API Corrosion and Materials API-571 Exam certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled as Advanced Corrosion & Materials Professional Certification. If a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The API Corrosion and Materials API-571 Exam certification provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass API Corrosion and Materials API-571 Exam then he should take this exam.
Certification Path
The API Corrosion and Materials certification path includes only one API-571 certification exam.
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API API-571 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Other Damage Mechanisms | 15% | - Microbiologically Influenced Corrosion - Liquid Metal Embrittlement - Erosion and Erosion-Corrosion - Cavitation Damage |
| Topic 2: Environmentally Assisted Cracking | 25% | - Chloride Stress Corrosion Cracking - Caustic Stress Corrosion Cracking - Hydrogen Embrittlement - Sulfide Stress Cracking |
| Topic 3: High-Temperature Corrosion and Degradation | 15% | - Graphitization - Carburization - Metal Dusting - Decarburization |
| Topic 4: Terms, Definitions, and Acronyms | 5% | |
| Topic 5: Uniform or Localized Loss of Thickness | 25% | - Sulfidation - Hydrochloric Acid Corrosion - Oxidation and Scaling - Corrosion Under Insulation (CUI) - Ammonium Bisulfide Corrosion |
| Topic 6: Mechanical and Metallurgical Failure Mechanisms | 15% | - Mechanical Fatigue - Brittle Fracture - Thermal Fatigue - Creep and Stress Rupture |
API Corrosion and Materials Professional Sample Questions:
Aggressive ammonium chloride corrosion often occurs:
- A. When the salts precipitate from high-temperature streams as they cool.
- B. When dry salts are exposed to a small amount of free water.
- C. When excess water washing dissolves too much ammonium chloride.
- D. In the absence of a free water phase.
Correct Answer: B 🗳️
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Besides corrosion, what other damage mechanism in hydrofluoric (HF) acid service should inspectors be alert to?
- A. Wet HF cracking
- B. Stress corrosion cracking
- C. Fluoride stress cracking
- D. Hydrogen stress cracking
Correct Answer: D 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
(Concentration Cell Corrosion is best described as corrosion:)
- A. By mechanical stress and fatigue in metal structures
- B. At high temperatures in the presence of sulfur compounds
- C. In the presence of dissimilar metals in electrical contact in a corrosive environment
- D. Where deposits form within piping or equipment
Correct Answer: D 🗳️
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(For hydrogen embrittlement, the amount of hydrogen necessary for a measurable effect on the mechanical properties varies with the alloy's strength, microstructure, and:)
- A. Coefficient of thermal conductivity
- B. Modulus of elasticity
- C. Melting point
- D. Heat treatment
Correct Answer: D 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
An inspector observes sharp-edged pitting in piping immediately downstream from an orifice. This damage has most likely resulted from which damage mechanism?
- A. Erosion
- B. Turbulence
- C. Flashing
- D. Cavitation
Correct Answer: A 🗳️
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