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API-571 Exam - Topic 1 Question 66 Discussion

Sulfidation of iron-based alloys usually begins at about:
C) 500 oF.
A) 150 oF.
B) 250 oF.
D) 1100 oF.

API-571 Exam - Topic 1 Question 66 Discussion

Actual exam question for API's API-571 exam
Question #: 66
Topic #: 1
[All API-571 Questions]

Sulfidation of iron-based alloys usually begins at about:

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Suggested Answer: C

by Carin at Mar 22, 2023, 11:34 PM

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Timothy
10 months ago
150 oF is way too low for sulfidation to kick in.
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Myra
10 months ago
Really? 1100 oF seems way too high for that.
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Elli
10 months ago
Definitely 500 oF, that's the standard.
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Rodrigo
10 months ago
I thought it was lower, like 250 oF?
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Ivette
10 months ago
Sulfidation starts around 500 oF.
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Lavelle
10 months ago
I’m pretty confident it’s not 150 oF, but I can't recall if it's 250 or 500. I wish I had reviewed that section more thoroughly!
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Jesusita
10 months ago
I’m torn between 250 oF and 500 oF. I feel like I practiced a question that mentioned 250, but I could be mixing it up.
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Larae
10 months ago
I remember sulfidation being a high-temperature process, maybe closer to 1100 oF? That seems to stick in my mind.
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Aliza
10 months ago
I think sulfidation starts around 500 oF, but I'm not completely sure. It feels like I saw that number in a practice question.
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Elfriede
10 months ago
I’m pretty confident it’s 500 oF, but I might be mixing it up with another process.
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Francine
10 months ago
I feel like I saw something about 250 oF in my notes, but that seems too low for sulfidation to begin.
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Verdell
10 months ago
I remember practicing a question like this, and I think the answer was closer to 1100 oF.
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Corazon
11 months ago
I think sulfidation starts around 500 oF, but I'm not entirely sure. It could be lower.
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Ciara
11 months ago
Hmm, I'm a bit unsure about this one. The question is asking for three methods, but there are a lot of options listed. I'll need to read through each one carefully to make sure I understand the differences between them and choose the most appropriate ones.
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Marjory
11 months ago
Hmm, this seems like a tricky one. I'll need to think through the purpose of disk striping in a storage policy. Let me see if I can eliminate some of the options first.
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