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API-571 PDF Practice Q&A's
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- Total Questions: 151
- Updated on: Sep 22, 2026
- Price: $119.00 $59.98
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- Total Questions: 151
- Updated on: Sep 22, 2026
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Not sure whether the API-571 material is right for you? Download the free PDF demo from Fast2test and review a sample of the 151 practice questions for the API Corrosion and Materials Professional before you spend a cent.
API API-571 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | API 571 - Corrosion and Materials Professional Certification Examination |
| Exam Number: | API-571 |
| Passing Score: | Minimum passing score determined by API using the modified Angoff method (typically around 70%) |
| Exam Duration: | 3.5 hours (210 minutes) |
| Available Languages: | English |
| Related Certifications: | API 510 Pressure Vessel Inspector API 653 Aboveground Storage Tank Inspector API 570 Piping Inspector |
| Certificate Validity Period: | 3 years |
| Exam Price: | $900 USD (exam fee through API) |
| Exam Format: | Multiple Choice |
| Real Exam Qty: | 100 |
| Sample Questions: | API API-571 Sample Questions |
| Exam Way: | Computer-Based Testing (CBT) at PSI test centers |
| Pre Condition: | Candidates must hold a current API 510, 570, or 653 certification to automatically qualify. Otherwise, qualification is based on education and a minimum of 1-5 years of experience in the petrochemical industry acquired within the last 10 years. |
| Official Syllabus URL: | https://www.api.org/products-and-services/individual-certification-programs/certifications/api571 |
API API-571 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Damage Mechanisms | - High-Temperature Hydrogen Attack (HTHA)
|
API API-571 Exam — Your Questions, Answered
The API-571 exam, officially titled Corrosion and Materials Professional, is the API exam you pass to earn the ICP Programs certification, a credential at the Professional level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector.
The API-571 exam includes 100 questions and gives you 3.5 hours (210 minutes) to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.
The passing score for the API-571 exam is Minimum passing score determined by API using the modified Angoff method (typically around 70%), and the official registration fee is $900 USD (exam fee through API). Keep in mind that a failed attempt means paying $900 USD (exam fee through API) again in full to retake it, so book your slot only when your scores on Fast2test practice tests sit consistently above the passing line.
API lists the following prerequisites or eligibility notes for the API-571 exam: Candidates must hold a current API 510, 570, or 653 certification to automatically qualify. Otherwise, qualification is based on education and a minimum of 1-5 years of experience in the petrochemical industry acquired within the last 10 years.. Requirements can change over time, so confirm the details on the official exam page at API's official site before you register.
Yes. Fast2test offers a free PDF demo of the API-571 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.
Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding API-571 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.
Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.
The API-571 exam blueprint is divided into 1 domains, starting with Damage Mechanisms. For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.
API Corrosion and Materials Professional Sample Questions:
Polythionic acid stress corrosion cracking (PTASCC) can be detected by:
- A. Magnetic particle testing
- B. Hardness measurements
- C. Ultrasonic thickness measurements
- D. Liquid penetrant testing
Correct Answer: D 🗳️
Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).
During inspection of a process unit where sulfidation from high-temperature hydrogen exists in H#S streams, the inspector should:
- A. Use angle beam ultrasonic testing to look for cracking at the mid-wall
- B. Use ultrasonic testing or radiographic testing thickness readings to monitor for loss of wall thickness
- C. Use penetrant testing and magnetic-particle testing to look for surface-breaking cracks
- D. Take boat samples and send them to the lab for metallographic analysis
Correct Answer: B 🗳️
Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).
Which of the following is the most significant result of spheroidization in steels?
- A. Loss of strength
- B. Loss of ductility
- C. Increased hardness
- D. Increased potential for stress corrosion cracking
Correct Answer: A 🗳️
Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).
(A metal cracks because of stress relaxation during postweld heat treatment (PWHT) of a heavy wall section.
This type of cracking is best categorized as:)
- A. PWHT cracking
- B. Reheat cracking
- C. Temper embrittlement cracking
- D. Thermal fatigue cracking
Correct Answer: B 🗳️
Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).
(Which of the following damage mechanisms affects most common materials of construction?)
- A. Sour water corrosion
- B. Amine corrosion
- C. Microbiologically induced corrosion
- D. Polythionic acid corrosion
Correct Answer: C 🗳️
Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).
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