1. Home
  2. API
  3. API-571

Corrosion and Materials Professional

Exam Details

  • Exam Code
    :API-571
  • Exam Name
    :Corrosion and Materials Professional
  • Certification
    :API Certifications
  • Vendor
    :API
  • Total Questions
    :454 Q&As
  • Last Updated
    :Jun 28, 2025

API API Certifications API-571 Questions & Answers

  • Question 151:

    What standard refers to Risk-Based-Inspection?

    A. RP 581

    B. RP 579

    C. RP 588

    D. RP 568

  • Question 152:

    Geometry, stress level, _________ and material properties are the predominate factors in determining the fatigue resistance of a component.

    A. Temperature

    B. Pressure

    C. Velocity

    D. Number of cycles

  • Question 153:

    Non-stressed relieved __________ is susceptible to stress corrosion cracking when in contact with moist HF vapors in the presence of oxygen.

    A. Carbon steel

    B. Alloy 400

    C. 300 Series SS

    D. 400 Series SS

  • Question 154:

    Mechanical fatigue can cause cracks that initiate from the surface and often form a:

    A. Clam shell appearance.

    B. Snail shell appearance.

    C. Turtle shell appearance.

    D. Shell Oil shell appearance.

    E. Taco shell appearance.

  • Question 155:

    Which of the following metals is the most anodic?

    A. Zinc

    B. Carbon Steel

    C. Nickel

    D. Monel

  • Question 156:

    Which of the following is not a critical factor that contributes to a brittle fracture?

    A. The material's fracture toughness

    B. Maximum operating temperature

    C. Stress concentration at a flaw

    D. Magnitude of the residual stresses

  • Question 157:

    Which of the following alkanolamine systems is the least aggressive in causing amine corrosion?

    A. Monoethanolamine (MEA)

    B. Diglycolamine (DGA)

    C. Diethanolamine (DEA)

    D. Methyldiethanolamine (MDEA)

  • Question 158:

    _________ is most likely found in hard weld and heat-affected zones and in high strength components.

    A. HIC

    B. SSC

    C. SOHIC

    D. Blistering

  • Question 159:

    NAC may be found in hot hydrocarbon streams downstream of the crude and vacuum units, __________ any hydrogen mix point.

    A. Upstream of

    B. Downstream of

    C. Adjacent to

    D. Around

  • Question 160:

    Cracks associated with brittle fracture will typically be _________.

    A. Jagged

    B. Branching

    C. Straight

    D. Perpendicular

Related Exams:

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only API exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your API-571 exam preparations and API certification application, do not hesitate to visit our Vcedump.com to find your solutions here.