最新的API Corrosion and Materials Professional - API-571免費考試真題
The presence of which additional substance(s) will accelerate the corrosion of steel in the presence of sulfur compounds at high temperature?
正確答案: A
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The potential for galvanic corrosion will increase when:
正確答案: A
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(The signature mark of a mechanical fatigue failure is a "clam shell" type fingerprint:)
正確答案: C
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Cracks formed by carbonate stress corrosion are best detected:
正確答案: C
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Which of the following is a critical factor for chloride stress corrosion cracking?
正確答案: D
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Which of the following is related to all wet H#S damage mechanisms?
正確答案: B
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(Increased corrosion rates have been observed in equipment and piping in HF acid service at what minimum threshold temperature?)
正確答案: D
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(Which of the following is the most important factor in determining carbon steel susceptibility to ethanol stress corrosion cracking in storage tanks?)
正確答案: A
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Amine stress corrosion cracking is most likely to occur in what services?
正確答案: B
說明：（僅 Fast2test 成員可見）
An NPS 3/4 (DN 20) carbon steel unsupported high-point vent on a steam line has failed by cracking.
The most likely cause is:
The most likely cause is:
正確答案: D
說明：（僅 Fast2test 成員可見）
(Amine stress corrosion cracking is found primarily in the:)
正確答案: D
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The type of organic acids in crude feedstocks that are of most concern for corrosion in crude unit overheads are those:
正確答案: C
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Nitriding of steels becomes most severe at temperatures above:
正確答案: B
說明：（僅 Fast2test 成員可見）
Which of the following can increase the corrosion rate of carbon steel via hydrofluoric (HF) acid corrosion?
正確答案: A
說明：（僅 Fast2test 成員可見）