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Corrosion and Materials Professional

Exam Details

  • Exam Code
    :API-571
  • Exam Name
    :Corrosion and Materials Professional
  • Certification
    :ICP Programs
  • Vendor
    :API
  • Total Questions
    :454 Q&As
  • Last Updated
    :May 16, 2024

API ICP Programs API-571 Questions & Answers

  • Question 31:

    Dissimilar weld metal cracking can be aggravated by _______.

    A. Stress

    B. Pressure

    C. Thermal cycling

    D. Cyclic stresses

  • Question 32:

    Alloys with nickel content above _________ are highly resistant to Cl SCC. The greatest susceptibility is 8% to 12% nickel.

    A. 15%

    B. 20%

    C. 30%

    D. 35%

  • Question 33:

    What is the chemical symbol for butane of butylenes?

    A. C²

    B. C3

    C. C4

    D. CH4

  • Question 34:

    Hardness is primarily an issue with SSC. Typical low strength carbon steels should be controlled to produce weld hardness less than ________.

    A. 225 BHN

    B. 237 BHN

    C. 200 BHN

    D. 240 BHN

  • Question 35:

    With thermal fatigue, time to failure is a function of the magnitude of the stress and the number of cycles and decreases with _________ stress and ________ cycles.

    A. Increasing, Decreasing

    B. Increasing, Increasing

    C. Decreasing, Decreasing

    D. Decreasing, Increasing

  • Question 36:

    Atmospheric corrosion:

    A. Can cause either uniform or localized wall loss.

    B. Always causes localized wall loss.

    C. Always causes uniform wall loss.

    D. Is best detected using profile RT.

  • Question 37:

    The primary factors affecting high temperature oxidation are metal temperature and _______.

    A. Pressure

    B. Alloy composition

    C. Stress

    D. Oxygen

  • Question 38:

    Thermal fatigue becomes of concern if the temperature swings exceed:

    A. 50º F

    B. 100º F

    C. 200º F

    D. 400º F

  • Question 39:

    Dissimilar weld metal cracking forms at the toe of the weld in the heat affected zone of the ________ material.

    A. Ferritic

    B. Austenitic

    C. Martensitic

    D. Both B and C

  • Question 40:

    Corrosion in boiler feedwater and condensate return systems is usually the result of dissolved gases, oxygen and ________.

    A. Carbon monoxide

    B. Carbon dioxide

    C. Material properties

    D. H²S

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