The best study investment pays off for years. Candidates who master the API-571 content with PracticeVCE's 151+ Q&As covering the API Corrosion and Materials Professional objectives gain knowledge that stays useful long after exam day — a genuinely lasting benefit, not a one-time cram.
API API-571 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Mechanical and Metallurgical Failure Mechanisms | 15% | - Brittle Fracture - Mechanical Fatigue - Creep and Stress Rupture - Thermal Fatigue |
| Topic 2: Uniform or Localized Loss of Thickness | 25% | - Ammonium Bisulfide Corrosion - Hydrochloric Acid Corrosion - Corrosion Under Insulation (CUI) - Oxidation and Scaling - Sulfidation |
| Topic 3: Environmentally Assisted Cracking | 25% | - Hydrogen Embrittlement - Chloride Stress Corrosion Cracking - Sulfide Stress Cracking - Caustic Stress Corrosion Cracking |
| Topic 4: Terms, Definitions, and Acronyms | 5% | |
| Topic 5: Other Damage Mechanisms | 15% | - Microbiologically Influenced Corrosion - Liquid Metal Embrittlement - Erosion and Erosion-Corrosion - Cavitation Damage |
| Topic 6: High-Temperature Corrosion and Degradation | 15% | - Graphitization - Carburization - Metal Dusting - Decarburization |
Before You Register for API-571: Read This First
API lists these official training resources for candidates:
Structured training plus consistent question practice gives the most durable results.
Registration runs through API's official channels:
Set up your profile, choose a test center or online slot, and book early — good dates disappear quickly.
By treating quality as a system, not a slogan. Our experts specialize in API technology and constantly upgrade the API-571 bank, with expert-verified answers across the API Corrosion and Materials Professional objectives. You can download a free trial before paying, pay securely by credit card on our trusted payment platform, and rely on 365 days of free updates afterward — every revision is emailed to you automatically. Questions at any point get immediate answers from our support team.
The API Corrosion and Materials Professional blueprint centers on these domains:
- Terms, Definitions, and Acronyms (5%)
- Other Damage Mechanisms (15%)
- Uniform or Localized Loss of Thickness (25%)
The full official outline lists further domains, and our bank covers them all.
According to current exam information, the API-571 exam presents 110 (100 scored, 10 unscored pretest) questions within a 195 minutes-minute limit. Timed practice sessions are the simplest way to make that constraint feel familiar before the real day.
Upon successful payment, our system automatically sends the product to your mailbox — typically within about a minute — and a download link appears immediately. If nothing arrives within two hours, check your spam folder and contact support. Install on unlimited devices, and enjoy 365 days of free updates: you receive an email with the updated API-571 materials whenever a revision is released, followed by a 50% renewal discount at the end of the period.
API publishes the following prerequisites for the API Corrosion and Materials Professional: Hold current API 510, 570 or 653 certification; or meet education + experience requirements: BS/BS in engineering/tech + 1 year, 2-year degree + 2 years, high school + 3 years industry experience (past 10 years).
Always confirm the latest requirements on the official certification page.
At present, passing the API-571 exam requires a score of 70% / Scaled score determined by API, and registration costs $440 USD. Both are API's figures and subject to change — verify them on the official site when booking.
Clear terms, honored consistently. If you fail the corresponding exam within 60 days of purchase, send a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims are refunded in full within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. You may instead request a free exchange for two products of equal value.
API Corrosion and Materials Professional Sample Questions:
Severe internal grooving corrosion is found at the bottom of a 4-inch (101.6 mm) carbon steel piping system in steam condensate service. Which of the following is the most likely cause?
- A. Ammonium bisulfide corrosion
- B. Carbon dioxide corrosion
- C. Erosion-corrosion
- D. Carbonate corrosion
Correct Answer: B 🗳️
Explanation: Only visible for PracticeVCE members. You can sign-up / login (it's free).
Which of the following statements is most accurate with regard to thermal fatigue?
- A. Because of their ductility, carbon steels have lower resistance to thermal fatigue
- B. Visual examination is an ineffective method of monitoring thermal fatigue
- C. Controlled rates of heating and cooling during startup and shutdown can lower stresses
- D. Thermal fatigue cracks generally initiate on the interior of a component due to high thermal stress
Correct Answer: C 🗳️
Explanation: Only visible for PracticeVCE 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. Temper embrittlement cracking
- B. PWHT cracking
- C. Reheat cracking
- D. Thermal fatigue cracking
Correct Answer: C 🗳️
Explanation: Only visible for PracticeVCE members. You can sign-up / login (it's free).
(Which damage mechanism occurs primarily as a result of exposure of interior vessel surfaces to air and moisture conditions during shutdown?)
- A. Carbonate stress corrosion cracking
- B. Polythionic acid stress corrosion cracking
- C. Wet hydrogen sulfide cracking
- D. Sour water stress corrosion cracking
Correct Answer: B 🗳️
Explanation: Only visible for PracticeVCE members. You can sign-up / login (it's free).
At what minimum level of nickel content does an alloy become nearly immune to chloride stress corrosion cracking?
- A. 12%
- B. 35%
- C. 45%
- D. 20%
Correct Answer: B 🗳️
Explanation: Only visible for PracticeVCE members. You can sign-up / login (it's free).
Viewing page 1 out of 31 pages.
Viewing questions 1-5 out of 151 questions.
999 Customer Reviews
