Free API-571 Exam Braindumps (page: 30)

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Amine corrosion depends on the design, operating practices, the type of amine, amine concentration, temperature and _________.

  1. Pressure
  2. Velocity
  3. Stress
  4. None of the above

Answer(s): B



_________ is the main concern during start-up, shutdown and/or hydro testing for equipment/piping operating at elevated temperatures. This event can also occur in an auto refrigeration event in units processing light hydrocarbons.

  1. Stress fracture
  2. Carburization
  3. Spheroidization
  4. Brittle fracture

Answer(s): D



If wet electrodes or high moisture content flux weld electrodes are used to weld carbon steel, hydrogen can be charged into the steel resulting in _________.

  1. Reduced tensile strength
  2. Loss of ductility
  3. Delayed cracking
  4. All of the above

Answer(s): C



Thermal fatigue cracks usually initiate on the _________ of the component. They are generally wide and filled with oxides due to the elevated temperatures.

  1. Surface
  2. ID
  3. Welds
  4. None of the above

Answer(s): A






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