Free API-571 Exam Braindumps (page: 7)

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Cracks that are typically straight, non-branching, and devoid of any associated plastic deformation are likely associated with which type of failure?

  1. Stress corrosion cracking
  2. Brittle fracture
  3. Thermal fatigue
  4. Temper embrittlement

Answer(s): B



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

  1. Creep
  2. Ductility
  3. Softening
  4. Hardening

Answer(s): A



Permanent deformation occurring at relatively low stress levels as a result of localized overheating is called ________.

  1. Stress cracking
  2. Brittle fracture
  3. Temper embrittlement
  4. Stress rupture

Answer(s): D



_____________ usually occurs when a colder liquid contacts a warmer metal surface.

  1. Brittle fracture
  2. Thermal fatigue
  3. Thermal shock
  4. Stress rupture

Answer(s): C






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