Free API API-571 Exam Questions
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API API-571 Exam Questions
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Provided By: API
- Exam: Corrosion and Materials Professional
- Certification: Individual Certification Programs
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Total Questions: 454
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Updated On: Mar 25, 2025
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Rated: 4.9 |
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Online Users: 908
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Question 1
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Wet H²S services or _________ acid services are process where hydrogen diffuses into
the steel and hydrogen embrittlement (HE) is an issue.
Answer: A
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Wet H²S services or _________ acid services are process where hydrogen diffuses into
the steel and hydrogen embrittlement (HE) is an issue.
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Question 2
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At a given pressure, the H²S concentration in the sour water _________ as temperature
_________.
Answer: D
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At a given pressure, the H²S concentration in the sour water _________ as temperature
_________.
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Question 3
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Phosphoric acid corrosion is usually found in ________ areas.
Answer: B
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Phosphoric acid corrosion is usually found in ________ areas.
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Question 4
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Hydrogen blisters may form as surface bulges on the ID, the OD on within the wall
thickness of a pipe or pressure vessel. Blistering occurs from hydrogen generated by
______, not hydrogen gas from the process stream.
Answer: B
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Hydrogen blisters may form as surface bulges on the ID, the OD on within the wall
thickness of a pipe or pressure vessel. Blistering occurs from hydrogen generated by
______, not hydrogen gas from the process stream.
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Question 5
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Carbon dioxide corrosion results when CO² dissolves in water to form _________ acid.
Answer: C
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Carbon dioxide corrosion results when CO² dissolves in water to form _________ acid.