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Exam API-571 All Questions

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Exam API-571 topic 1 question 121 discussion

Actual exam question from API's API-571
Question #: 121
Topic #: 1
[All API-571 Questions]

The major factors affecting high temperature sulfidation are the temperature, the presence of hydrogen, the concentration of H²S and the __________.

  • A. Alloy content
  • B. Velocity
  • C. Pressure
  • D. Water content
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Suggested Answer: A 🗳️

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ahmadmm
1 year, 4 months ago
The critical factors for high-temperature H2/H2S corrosion are the temperature, the presence of hydrogen, the concentration and partial pressure of H2S, the vapor/liquid ratio, and the chemical composition of the alloy.
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