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Our IT experts update the API Corrosion and Materials Professional preparation labs regularly with the latest professional knowledge. Get 151 practice questions for the API-571 exam at PremiumVCEDump — current in 2026.

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
Certificate Validity Period:3 years
Exam Price:$900 USD (exam fee through API)
Related Certifications:API 570 Piping Inspector
API 653 Aboveground Storage Tank Inspector
API 510 Pressure Vessel Inspector
Exam Duration:3.5 hours (210 minutes)
Passing Score:Minimum passing score determined by API using the modified Angoff method (typically around 70%)
Available Languages:English
Real Exam Qty:100
Exam Format:Multiple Choice
Sample Questions: DOWNLOAD DEMO
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:

SectionObjectives
Damage Mechanisms- High-Temperature Hydrogen Attack (HTHA)
  • 1. Decarburization
  • 2. Internal Hydrogen Attack (IHA)
- General / Mechanical
  • 1. Brittle Fracture
  • 2. Mechanical Fatigue
  • 3. Softening (Spheroidization)
  • 4. Hydrogen Embrittlement
  • 5. Dissimilar Metal Weld (DMW) Cracking
  • 6. Cavitation
  • 7. Metal Dusting
  • 8. Temper Embrittlement
  • 9. Thermal Fatigue
  • 10. Fretting / Fretting Corrosion
  • 11. Liquid Metal Embrittlement (LME)
  • 12. Sigma Phase Embrittlement
  • 13. Stress Relief Cracking
  • 14. Vibration-Induced Fatigue
  • 15. Strain Aging
  • 16. 885°F (475°C) Embrittlement
  • 17. Atmospheric Corrosion
  • 18. Zinc Embrittlement
  • 19. Creep / Stress Rupture
  • 20. Graphitization
  • 21. Corrosion Under Insulation (CUI)
  • 22. Galvanic Corrosion
  • 23. Erosion/Erosion-Corrosion
  • 24. Fatigue
- Environment-Assisted Cracking
  • 1. Ethanol Stress Corrosion Cracking (SCC)
  • 2. Hydrogen Embrittlement
  • 3. Ammonia Stress Corrosion Cracking
  • 4. Chloride Stress Corrosion Cracking (Cl-SCC)
  • 5. Amine Stress Corrosion Cracking
  • 6. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
  • 7. Carbonate Stress Corrosion Cracking
  • 8. Polythionic Acid Stress Corrosion Cracking (PTA-SCC)
  • 9. Sulfide Stress Cracking (SSC) / Hydrogen Stress Cracking
  • 10. Hydrogen-Induced Cracking (HIC) / Stepwise Cracking
  • 11. Caustic Stress Corrosion Cracking
- Uniform or Localized Loss of Thickness
  • 1. Cooling Water Corrosion
  • 2. Caustic Corrosion
  • 3. Dealloying (Selective Leaching)
  • 4. Flow-Accelerated Corrosion (FAC) / Flow-Assisted Corrosion
  • 5. Boiler Water / Condensate Corrosion
  • 6. Flue Gas Dew Point Corrosion
  • 7. Atmospheric Corrosion
  • 8. Soil Corrosion
  • 9. Microbiologically Influenced Corrosion (MIC)
  • 10. Corrosion Under Insulation (CUI)
  • 11. Galvanic Corrosion
  • 12. CO2 Corrosion
- High Temperature Corrosion (800°F / 425°C and above)
  • 1. Fuel Ash Corrosion
  • 2. Metal Dusting
  • 3. Carburization
  • 4. Sulfidation
  • 5. Oxidation
  • 6. Nitriding

API API-571 Exam: Candid Answers

The API Corrosion and Materials Professional blueprint spans 1 domains — including Damage Mechanisms. Work the domains in order of weight; the complete outline above lists every subtopic.

Yes — download the free API Corrosion and Materials Professional demo and experience the brand-new learning format before paying. Purchases include 365 days of free updates by email; renew afterward at 50% off.

3.5 hours (210 minutes) for 100 questions. The PremiumVCEDump PC dumps' simulated test environment builds the pacing you need — practice without limits on time or place.

The API Corrosion and Materials Professional is API's certification exam for ICP Programs, at the Professional level. It's harder than a driver's license test — but brand-new learning ways make it manageable. Related credentials include API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector.

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. Eligibility rules change over time, so verify the current requirements on the official page (official API-571 exam page) before registering.

$900 USD (exam fee through API) per attempt, Minimum passing score determined by API using the modified Angoff method (typically around 70%) to pass. Retakes cost the full fee, so prepare thoroughly — the 151 practice questions for the API-571 exam at PremiumVCEDump work as your personal think tank.

Upon successful payment, our system emails the API Corrosion and Materials Professional material automatically within about a minute — download the PDF at your convenience right away, with 24/7 help if nothing arrives within 2 hours. If you fail the corresponding API-571 exam within 60 days of purchase, we return all money: send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam, processed within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Prefer a swap? Exchange for two equal-value dumps free. No hassle money.

API Corrosion and Materials Professional Sample Questions:

(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. Thermal fatigue cracking
  • B. PWHT cracking
  • C. Temper embrittlement cracking
  • D. Reheat cracking
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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

(Creep damage can be mitigated by:)

  • A. Solution anneal heat treatment
  • B. Postweld heat treatment at 1150 °F (621 °C)
  • C. Preheating to 500 °F (260 °C) during repair welding
  • D. Removing the damaged material
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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

(Prevention of high-temperature hydrogen attack is usually achieved by using:)

  • A. Alloy steels with chromium and molybdenum added to increase carbide stability
  • B. Carbon-manganese steels with low carbon content
  • C. Austenitic stainless steel cladding on carbon steel equipment
  • D. High-nickel alloy steels selected in accordance with API RP 941
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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

Hydrogen permeation or diffusion rates associated with wet H#S damage of carbon steel and low-alloy steels have been found to be minimal at a pH of:

  • A. 3
  • B. 9
  • C. 5
  • D. 7
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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

Amine stress corrosion cracking is most likely to occur in what services?

  • A. MEA
  • B. DIPA
  • C. MDEA
  • D. ADIP
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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

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