API-571

API-571 practice questions, page 2 of 18, with answer review and explanations.

Question 6

The sudden rapid fracture under stress (residual or applied) where the material exhibits little or no evidence of ductility or plastic deformation is called _________.

  1. 885º F Embrittlement
  2. Temper Embrittlement
  3. Stress Corrosion Cracking
  4. Brittle Fracture

Question 7

What structure is 409 stainless steel?

  1. Martensitic
  2. Austenitic
  3. Duplex
  4. Ferritic

Question 8

Low alloy steels contain a maximum of _______ chrome.

  1. 5%
  2. 6%
  3. 7.5%
  4. 9%

Question 9

Which of the following can be affected by 885º F Embrittlement?

  1. 410 SS
  2. 430 SS
  3. 308 SS
  4. Alloy 2205
  5. A, B and D

Question 10

For 5Cr-0.5Mo, what is the threshold temperature for creep?

  1. 500º F
  2. 800º F
  3. 600º F
  4. 700º F