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- Total Questions: 151
- Updated on: Oct 12, 2026
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- Total Questions: 151
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API-571 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our API-571 exam dumps will include the following topics:
- Explore refining industry damage mechanisms for environment assisted cracking and be able to identify the other types of mechanisms.
- Explore damage mechanisms on high temperature corrosion including oxidation, sulfidation, carburization and metal dusting.
- Knowledge of general damage mechanisms applicable to the industry and be able to identify their features and functions.
- Determine general damage mechanisms on uniform or localized loss thickness and explain the various types of corrosion related to it.
- Understand refining industry damage mechanisms used in uniform of localized loss in thickness phenomena.
- Identify the various mechanical and metallurgical failure mechanisms such as brittle fracture, steam blanketing, stress rupture, cracking, thermal shock, fatigue and corrosion.
- Possess a general background on the scope, organization and use of API 571 and be able to review the standards and other references related to it.
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How much API-571 Exam Cost
The price of the API-571 exam is $365 USD.
What is the duration of the API-571 Exam
- Number of Questions: 70
- Format: Multiple choices, multiple answers
- Length of Examination: 3.25 hours
Certification Path
The API Corrosion and Materials certification path includes only one API-571 certification exam.
Pass rate 99%
By contrasting with other products in the industry, our API-571 test guide really has a higher pass rate, which has been verified by many users. As long as you use our API-571 exam training I believe you can pass the exam. If you fail to pass the exam, we will give a full refund. API-571 learning guide hopes to progress together with you and work together for their own future. The high passing rate of Corrosion and Materials Professional exam training guide also requires your efforts. If you choose API-571 test guide, I believe we can together contribute to this high pass rate.
API API-571 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Uniform or Localized Loss of Thickness | 25% | - Sulfidation - Ammonium Bisulfide Corrosion - Oxidation and Scaling - Corrosion Under Insulation (CUI) - Hydrochloric Acid Corrosion |
| Topic 2: High-Temperature Corrosion and Degradation | 15% | - Decarburization - Metal Dusting - Carburization - Graphitization |
| Topic 3: Other Damage Mechanisms | 15% | - Liquid Metal Embrittlement - Erosion and Erosion-Corrosion - Microbiologically Influenced Corrosion - Cavitation Damage |
| Topic 4: Mechanical and Metallurgical Failure Mechanisms | 15% | - Brittle Fracture - Creep and Stress Rupture - Thermal Fatigue - Mechanical Fatigue |
| Topic 5: Terms, Definitions, and Acronyms | 5% | |
| Topic 6: Environmentally Assisted Cracking | 25% | - Sulfide Stress Cracking - Hydrogen Embrittlement - Chloride Stress Corrosion Cracking - Caustic Stress Corrosion Cracking |
API Corrosion and Materials Professional Sample Questions:
(Deaerators that have not been postweld heat-treated are commonly subject to:)
- A. Steam blanketing
- B. Corrosion fatigue
- C. Vibration-induced fatigue
- D. Caustic stress corrosion cracking
Correct Answer: D 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
(The signature mark of a mechanical fatigue failure is a "clam shell" type fingerprint:)
- A. That has concentric rings
- B. That has nonconcentric rings
- C. With microvoid coalescence
- D. With intergranular cracking
Correct Answer: A 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
The most important alloying element for prevention of high-temperature hydrogen attack is:
- A. Nickel
- B. Manganese
- C. Chromium
- D. Niobium
Correct Answer: A 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
(Which of the following is the appropriate method for monitoring hydrochloric acid corrosion susceptibility in an atmospheric crude unit?)
- A. Manual or automatic ultrasonic scanning or profile radiographing of piping, vessels, and exchangers in the system
- B. Measuring the pH of the water in the boot of the overhead accumulator
- C. Using strategically placed corrosion probes or corrosion coupons
- D. Ultrasonic thickness measurements of water injection points
Correct Answer: B 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
Steel hardness and strength are critical factors for what type of damage mechanism?
- A. Hydrogen stress cracking-HF
- B. Amine stress corrosion cracking
- C. Carbonate corrosion stress cracking
- D. Polythionic acid cracking
Correct Answer: A 🗳️
Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).
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