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API-571 Exam - Topic 1 Question 103 Discussion

Actual exam question for API's API-571 exam
Question #: 103
Topic #: 1
[All API-571 Questions]

Increasing the chromium in steels offers no major improvement in resistance to CO corrosion until a minimum of __________ is reached.

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Suggested Answer: B

by Barney at Dec 10, 2024, 02:00 AM

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Diane
6 months ago
5% seems way too low for any real effect.
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Martina
6 months ago
Wait, are we sure about that?
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Daren
6 months ago
I've read it's actually 7%.
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Jaime
6 months ago
Definitely 9%!
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Werner
7 months ago
I think it's 12%.
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Joanna
7 months ago
I believe the answer is 9%. It seems to be a common figure in discussions about chromium's effectiveness.
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Troy
7 months ago
I’m a bit confused; I thought it was lower, maybe around 7%? But I can't recall clearly.
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Marsha
7 months ago
I practiced a question like this, and I feel like 12% was mentioned as a threshold for CO corrosion resistance.
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Judy
7 months ago
I think I remember something about chromium levels, but I'm not sure if it's 9% or 12%.
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Glory
7 months ago
This is a tricky one. I'm not as familiar with the specifics of chromium's role in steel corrosion resistance. I'll have to make an educated guess here and hope I can at least eliminate a couple of the options that seem less likely.
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Melvin
7 months ago
Okay, I've got this. The key is finding the minimum chromium percentage needed to improve resistance to CO corrosion. I'll review the options and select the one that seems most plausible based on my knowledge of steel composition and corrosion.
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Cory
7 months ago
Hmm, I'm a bit unsure about this one. I know chromium is important for corrosion resistance, but I'm not sure of the exact percentage needed. I'll have to think it through carefully and try to eliminate the options that don't seem quite right.
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Rosann
8 months ago
This one seems straightforward. I'll think through the key information - chromium in steels, resistance to CO corrosion, and a minimum percentage. I'll carefully consider each option and select the one that best fits the question.
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Maynard
1 year ago
12%? That's a lot of chromium! I hope they're not planning to make swords out of this steel. *chuckles*
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Van
11 months ago
I wonder what kind of steel they're working on with that high chromium content.
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Rusty
11 months ago
I agree, that much chromium must be for some heavy-duty industrial use.
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Bernardo
11 months ago
Yeah, 12% chromium does seem like a lot. Maybe they're trying to make it super resistant to corrosion.
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Vallie
11 months ago
D) 7%
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Benton
11 months ago
C) 5%
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Sherron
11 months ago
B) 12%
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Dolores
12 months ago
A) 9%
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Justine
1 year ago
Hold on, is this a trick question? 5% chromium? That seems way too low to make a significant difference in corrosion resistance. I'll have to go with 12%.
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Roosevelt
11 months ago
Yeah, I would go with 12% as well for better corrosion resistance.
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Ashton
11 months ago
I agree, 5% chromium does seem too low to make a difference.
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Fatima
11 months ago
I think 12% chromium is the minimum for significant improvement in resistance to CO corrosion.
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Gerald
1 year ago
Chromium is important, but I'm not sure 12% is the minimum. Let me think... I'll go with the more moderate option of 7%.
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Vernice
1 year ago
Hmm, 9% seems a bit low. I'd go with the higher percentage of 12% for better corrosion resistance.
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Bulah
12 months ago
Yeah, 12% seems like the safer option for better protection against corrosion.
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Irving
1 year ago
I would also choose 12% for improved resistance to CO corrosion.
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Krissy
1 year ago
I think 9% might not be enough to make a significant difference.
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Tommy
1 year ago
I agree, 12% chromium would provide better corrosion resistance.
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Leonardo
1 year ago
I see your point, but I think increasing chromium to 12% would provide better resistance to CO corrosion.
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Jamal
1 year ago
I think the answer is 12%. Chromium is a key alloying element in stainless steel, and it helps increase resistance to corrosion.
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Pedro
12 months ago
No, it's 12% for sure.
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Elenora
1 year ago
I think it's 9% actually.
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Kristofer
1 year ago
Yes, chromium is important for improving resistance to corrosion.
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Julio
1 year ago
I believe the answer is 12%.
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Taryn
1 year ago
I disagree, I believe the answer is A) 9%.
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Leonardo
1 year ago
I think the answer is B) 12%.
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