API Exam API-571 Topic 1 Question 103 Discussion

Actual exam question for API's API-571 exam

Question #: 103
Topic #: 1

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

A9%

B12%

C5%

D7%

Show Suggested Answer

Suggested Answer: B

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

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Maynard

2 months 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

20 days ago

I wonder what kind of steel they're working on with that high chromium content.

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Rusty

22 days ago

I agree, that much chromium must be for some heavy-duty industrial use.

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Bernardo

27 days 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

28 days ago

D) 7%

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Benton

29 days ago

C) 5%

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Sherron

30 days ago

B) 12%

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Dolores

2 months ago

A) 9%

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Justine

3 months 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

1 months ago

Yeah, I would go with 12% as well for better corrosion resistance.

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Ashton

1 months ago

I agree, 5% chromium does seem too low to make a difference.

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Fatima

1 months ago

I think 12% chromium is the minimum for significant improvement in resistance to CO corrosion.

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Gerald

3 months 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

3 months 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

1 months ago

Yeah, 12% seems like the safer option for better protection against corrosion.

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Irving

2 months ago

I would also choose 12% for improved resistance to CO corrosion.

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Krissy

2 months ago

I think 9% might not be enough to make a significant difference.

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Tommy

2 months ago

I agree, 12% chromium would provide better corrosion resistance.

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Leonardo

3 months ago

I see your point, but I think increasing chromium to 12% would provide better resistance to CO corrosion.

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Jamal

3 months 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

2 months ago

No, it's 12% for sure.

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Elenora

3 months ago

I think it's 9% actually.

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Kristofer

3 months ago

Yes, chromium is important for improving resistance to corrosion.

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Julio

3 months ago

I believe the answer is 12%.

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Taryn

3 months ago

I disagree, I believe the answer is A) 9%.

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Leonardo

3 months ago

I think the answer is B) 12%.

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