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Free API-571 Exam Braindumps (page: 48)

Page 47 of 114
PDF with 454 Questions

Which of the following materials is susceptible to sigma phase embrittlement?

  1. Carbon steel
  2. Low alloy steel
  3. 300 Series SS
  4. Both A and B

Answer(s): C



A quick test for embrittlement from _________ is a bend test or crush test. Unaffected material will be crushed in a ductile fashion while embrittled components will crack with no signs of ductility.

  1. Titanium Hydriding
  2. Temper embrittlement
  3. Caustic embrittlement
  4. None of the above.

Answer(s): A



Refractory anchors must be resistant to __________ in high temperature services.

  1. Thermal fatigue
  2. Thermal cracking
  3. Stress cracking
  4. Oxidation

Answer(s): D



For a specific material, HTHA is dependent on temperature, hydrogen partial pressure, time and _________.

  1. Stress
  2. Pressure
  3. Velocity
  4. Alloy composition

Answer(s): A






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