Free API-571: Corrosion and Materials Exam Questions and Answers
Corrosion and Materials is exam API-571, part of the API Individual Certification Programs from the American Petroleum Institute. API's numeric certifications are named after the standard they test — 510 for pressure vessel inspection, 570 for piping, 653 for storage tanks — while letter codes name a discipline, as with SIFE for Source Inspector Fixed Equipment. Every ICP exam is scaled from 200 to 500 with 400 to pass, sat at a Prometric centre with no reference books allowed into the room.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: August 30, 2026
- Exam code
- API-571
- Provider
- API
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
A pipeline carries acidic chemicals; what type of corrosion is most likely to occur?
Please select an optionIncorrectCorrect answer: A
Pitting corrosion is common in acidic environments due to localized depletion of protective films.
Was this answer correct?Question #2
A storage tank made of stainless steel is prone to which defect in a chloride environment?
Please select an optionIncorrectCorrect answer: A
Intergranular corrosion occurs in stainless steel under chloride exposure due to sensitization along grain boundaries.
Was this answer correct?Question #3
What is the first step in diagnosing corrosion in a new pipeline?
Please select an optionIncorrectCorrect answer: B
Visual inspection is a preliminary method to identify obvious signs of corrosion before conducting more detailed evaluations.
Was this answer correct?Question #4
A component operates in a high-temperature environment but is exposed to water; what is the risk?
Please select an optionIncorrectCorrect answer: D
High-temperature corrosion, particularly in the presence of water, poses a considerable risk to components due to oxidation and scaling.
Was this answer correct?Question #5
What method is most effective for assessing corrosion under insulation (CUI)?
Please select an optionIncorrectCorrect answer: C
Thermography allows for non-invasive detection of heat loss and potential areas affected by corrosion under insulation (CUI).
Was this answer correct?Question #6
A metal shows signs of brownish surface and flaking; what type of corrosion is indicated?
Please select an optionIncorrectCorrect answer: B
Rusting is characterized by reddish-brown flakes due to moisture and oxidation of iron or steel.
Was this answer correct?Question #7
During routine inspection, a tank shows tight visual cracks. What should be the immediate action?
Please select an optionIncorrectCorrect answer: C
Further inspection is crucial to determine if the cracks indicate serious structural issues or merely cosmetic damage.
Was this answer correct?Question #8
A heat exchanger experiences reduced efficiency; what is the likely cause related to corrosion?
Please select an optionIncorrectCorrect answer: D
Fouling often results from corrosion products accumulating on surfaces, leading to reduced thermal efficiency.
Was this answer correct?Question #9
Which factor most influences the rate of uniform corrosion in a carbon steel pipeline?
Please select an optionIncorrectCorrect answer: A
Temperature has a substantial effect on the corrosion rate, as higher temperatures typically accelerate chemical reactions.
Was this answer correct?Question #10
A plant observes unusual appearances in metal surfaces post cleaning; what might this indicate?
Please select an optionIncorrectCorrect answer: D
An unusual appearance often indicates that cleaning chemicals have attacked the metal, leading to potential corrosion or material degradation.
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FAQ
Learn More: https://www.api.org/products-and-services/individual-certification-programs/certifications/api572
- Q1: What is the API-571: Corrosion and Materials exam?
- A: API-571: Corrosion and Materials is a API certification exam. Judging by the questions in our bank, it concentrates on corrosion, steel, tank, galvanic and pipeline.
- Q2: What topics does the API-571: Corrosion and Materials exam cover?
- A: Questions in our API-571: Corrosion and Materials bank cluster around corrosion, steel, tank, galvanic, pipeline, stainless, metal and coating. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for API-571: Corrosion and Materials?
- A: Work through the API-571: Corrosion and Materials practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real API-571: Corrosion and Materials exam questions?
- A: They are drawn from officially released past questions and from community members who have sat API-571: Corrosion and Materials. Answers are verified and updated weekly.
- Q5: Where do I register for the API-571: Corrosion and Materials exam?
- A: Register through API directly at https://www.api.org/products-and-services/individual-certification-programs/certifications/api571. Exampractice is not affiliated with API and does not administer the exam.
- Q6: Is there a free API-571: Corrosion and Materials sample?
- A: Yes. Every API-571: Corrosion and Materials page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are API Certification Exams?
- A: API (American Petroleum Institute) Certification Exams validate your expertise in various areas of the oil and natural gas industry, including inspection, safety, environmental protection, and quality management. These certifications demonstrate your proficiency in industry standards and best practices.
- Q8: Why should I pursue API Certification?
- A: API Certification enhances your professional credibility, demonstrating your skills and knowledge in the petroleum industry. This can lead to better job opportunities, higher salaries, and career advancement in the energy sector.
- Q9: What are the benefits of API Certification?
- A: Benefits include recognition as a certified industry professional, improved job performance, access to exclusive resources, continuing education opportunities, and the ability to stay current with the latest industry standards and regulations.
- Q10: Who should take API Certification Exams?
- A: Engineers, inspectors, safety officers, quality managers, and anyone involved in the petroleum and natural gas industry should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of API Certification Exams are available?
- A: API offers various certification paths, including API 510 (Pressure Vessel Inspector), API 570 (Piping Inspector), API 653 (Aboveground Storage Tank Inspector), API 580 (Risk Based Inspection), and many others tailored to specific roles and expertise levels in the industry.
- Q12: How do I prepare for API Certification Exams?
- A: Preparation can include official API training courses, study guides, practice exams, online resources, and hands-on experience in the relevant areas of the petroleum industry.
- Q13: Where can I take API Certification Exams?
- A: API Certification Exams can be taken at authorized testing centers worldwide, providing flexibility to fit your schedule and location.
- Q14: How do API Certifications impact my career?
- A: API Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in the petroleum and natural gas industry.
- Q15: Are there any prerequisites for API Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior certifications. Check the specific requirements for each certification path on the API website.
- Q16: How often do I need to recertify for API Certifications?
- A: API Certifications typically require recertification every three years to ensure that certified professionals stay updated with the latest industry standards and practices.