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API API-571 Practice Test Questions Answers

Exam Code: API-571 (Updated 149 Q&As with Explanation)
Exam Name: Corrosion and Materials Professional
Last Update: 10-Jan-2026
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Questions Include:

  • Single Choice: 149 Q&A's

  • API-571 Overview

    API-571 Exam Overview

    Attribute Details
    Certification Name / Code Corrosion & Materials Professional (API-571)
    Administered by API Individual Certification Program (ICP), delivered via Prometric
    Exam Duration 3.25 hours (195 minutes)
    Number of Questions 110 total: 100 scored + 10 unscored pretest items
    Question Format Multiple‑choice questions only (closed-book, no resources permitted)
    Passing Score Minimum of 70% (scaled score of at least 400 out of 500)
    Language Offered English only
    Delivery Options In-person at Prometric test centers or via Prometric remote proctoring
    Exam Fee API Member: $360; Non‑Member: $420 (initial certification)
    Certification Validity 3 years
    Retake Policy Eligible for multiple attempts; must wait between windows; recertification by re-exam or continuing professional education

    Other API Exams

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    API API-571 Exam Topics Breakdown

    Domain Approx. No. of Qs Focus / Skills Assessed
    Critical Factors ~30 Environmental & operating variables influencing corrosion
    Damage Descriptions ~20 Identifying and understanding how damage manifests
    Inspection & Monitoring ~20 Techniques for detecting and tracking damage progression
    Prevention & Mitigation ~15 Corrosion control methods: coatings, inhibitors, material selection
    Affected Equipment ~10 Types of equipment impacted and relevant mitigation / inspection needs
    Affected Materials ~5 Metals/alloys susceptible to damage in petrochemical environments
    Appearance / Morphology ~7 Visual cues and physical signs of corrosion
    Related Mechanisms ~3 Secondary failure mechanisms tied to primary damage modes
    Total Scored Questions 100 Complete coverage of exam blueprint

     

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    API API-571 Exam Dumps FAQs

    The API‑571 exam (Corrosion and Materials Professional) is part of the API Individual Certification Program (ICP), designed to validate expertise in corrosion mechanisms, damage mechanisms, inspection, mitigation, and materials selection in the oil & gas industry.

    The API-571 exam is considered moderately to highly challenging, covering detailed knowledge of corrosion, damage mechanisms, inspections, and prevention. Many test-takers report intense scenario-based questions requiring deep technical understanding

    Key domains include: Critical Factors; Damage Descriptions; Inspection & Monitoring; Prevention/Mitigation; Affected Equipment and Materials; Morphology; and Related Mechanisms

    The API-571 exam comprises 100 scored multiple-choice questions (plus approximately 10 pretest questions) with a total time allowance of 150 minutes (2.5 hours)

    Candidates must score at least 70% to pass the API-571 exam. This reflects answering approximately 70 out of the 100 scored questions correctly

    Solution2Pass provides API-571 PDF questions, exam dumps, real questions, and a practice test engine tailored to mirror the actual exam format. Our materials help you practice under timed conditions and reinforce weak areas with detailed questions and answers.

    We offer downloadable API-571 PDF questions, printed-ready exam dumps, and interactive practice tests. The PDF format is ideal for offline study, while the practice engine simulates timed sessions to build readiness.

    Yes—our API-571 practice questions and questions answers are developed based on the official API body of knowledge and frequently updated to match the latest exam patterns and question types.

    API-571 Questions and Answers

    Question # 1

    Sigma phase embrittlement can occur in which of the following piping materials operating at temperatures of 1000°F to 1750°F (538°C to 954°C)?

    A.

    300 series stainless steel

    B.

    400 series stainless steel (12Cr)

    C.

    Monel 400

    D.

    5% chrome

    Question # 2

    Erosion and erosion-corrosion metal loss is characterized by:

    A.

    smooth pits.

    B.

    linear striations.

    C.

    grooves and gullies.

    D.

    rough pits and pock marks.

    Question # 3

    Which of the following statements about high-temperature hydrogen attack is most accurate?

    A.

    Acoustic emission testing is not a proven method for the detection of high-temperature hydrogen attack damage.

    B.

    High-temperature hydrogen attack will most often be associated with the formation of surface blisters.

    C.

    High-temperature hydrogen attack damage is most often limited to welds and heat-affected zones.

    D.

    300 series stainless steels are also susceptible to high-temperature hydrogen attack at conditions normally seen in refinery units.

    Question # 4

    (Amine stress corrosion cracking is found primarily in the:)

    A.

    Weld fusion line

    B.

    Weld heat affected zone

    C.

    Weld metal

    D.

    Base metal

    Question # 5

    Besides corrosion, what other damage mechanism in hydrofluoric (HF) acid service should inspectors be alert to?

    A.

    Hydrogen stress cracking

    B.

    Fluoride stress cracking

    C.

    Stress corrosion cracking

    D.

    Wet HF cracking

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