Free API-571 Exam Braindumps (page: 22)

Page 21 of 114

Caustic embrittlement cracking can be effectively prevented by means of PWHT at a temperature of _______.

  1. 1100º F
  2. 1150º F
  3. 1200º F
  4. 1250º F

Answer(s): B



General or localized corrosion of carbon steels and other metals caused by dissolved salts, gases, organic compounds or microbiological activity is called _______.

  1. Cooling water corrosion
  2. Oxidation
  3. MIC
  4. None of the above

Answer(s): A



With CO² corrosion, increasing temperatures _________ corrosion rates up to the point where CO² is vaporized.

  1. Decrease
  2. Increase
  3. Eliminate
  4. None of the above

Answer(s): B



Units where graphitization may be suspected are the FCCU and the _____ unit.

  1. Hydrotreater
  2. Coker
  3. Alky
  4. None of the above

Answer(s): B






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