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API-571 Exam Question 126

Cracking can occur at low caustic levels if a concentrating mechanism is present. In such cases, caustic concentrations of ________ ppm are sufficient to cause cracking.

    • API-571 Exam Question 127

    At high temperatures, metal components can slowly and continuously deform under load below the yield stress. This time dependent deformation of stressed components is known as __________.

    • API-571 Exam Question 128

    Which of the following materials is least affected by brittle fracture?

    • API-571 Exam Question 129

    Which of these materials is not susceptible to amine cracking?

    • API-571 Exam Question 130

    In fired heater tubes, dissimilar weld metal cracking forms primarily on the _______ of the material.
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