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API-936 Exam - Topic 2 Question 15 Discussion

[Material Requirements]Hydration is the process that causes refractory concrete to:
D) develop green strength.
A) resist heat.
B) become formable.
C) dry out.

API-936 Exam - Topic 2 Question 15 Discussion

Actual exam question for API's API-936 exam
Question #: 15
Topic #: 2
[All API-936 Questions]

[Material Requirements]

Hydration is the process that causes refractory concrete to:

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Suggested Answer: D

by Bernardine at Mar 08, 2026, 08:06 AM

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Lynelle
I agree, D) is the best choice. It helps with initial strength.
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Noe
5 days ago
I think it's D) develop green strength. It makes sense for concrete.
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Rima
10 days ago
I’m torn between B) and D). Both seem relevant to hydration effects.
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Alona
15 days ago
A) resist heat sounds plausible, but I lean towards D) for strength.
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Dick
21 days ago
I feel like B) become formable is a good choice too. Hydration helps shape it.
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Aracelis
26 days ago
I think it's D) develop green strength. It makes sense for concrete.
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Kiley
1 month ago
B) become formable is tempting, but hydration is more about strength.
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Jesse
1 month ago
A) resist heat sounds good too, but not the main point.
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Billye
1 month ago
I agree, D) is the best choice. It gains strength while curing.
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Markus
2 months ago
I think it's D) develop green strength. Makes sense for concrete.
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Cherelle
2 months ago
I thought it was just about drying out, interesting!
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Bernardine
2 months ago
A is definitely a big factor too!
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Luisa
3 months ago
Wait, does hydration really make it formable?
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Leota
4 months ago
Totally agree, it's all about that strength.
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Brice
4 months ago
Hydration helps develop green strength!
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Buck
4 months ago
Not sure about that, sounds too simple.
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Kathrine
4 months ago
A) resist heat is also a big factor!
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Nikita
4 months ago
Wait, does hydration really make it formable?
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Sheldon
4 months ago
Totally agree, it's all about that strength.
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Merrilee
5 months ago
Hydration helps develop green strength!
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Josefa
5 months ago
I keep second-guessing myself, but I think hydration is more about the strength and not really about drying out, so C) dry out seems wrong to me.
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Ellen
5 months ago
I feel like we discussed how hydration helps with heat resistance too, but I can't recall if that's the main focus here. A) resist heat might be a contender.
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Vi
5 months ago
I remember something about hydration making concrete workable, so B) become formable sounds familiar, but I could be mixing it up with something else.
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Mohammad
5 months ago
I think hydration is related to how concrete gains strength, so I might lean towards D) develop green strength, but I'm not entirely sure.
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