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(Cooling water corrosion usually increases with decreasing:)
Suggested Answer: D
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Comprehensive and Detailed Explanation From Exact Extract:
According to API RP 571, corrosion in cooling water systems often increases at low flow velocities due to:
Stagnation
Deposit formation
Increased risk of underdeposit corrosion and MIC
Higher velocities tend to:
Sweep away deposits
Maintain protective films (within erosion limits)
Therefore, decreasing velocity is strongly associated with increased corrosion risk.
Referenced Documents (Study Basis):
API RP 571 -- Section on Cooling Water Corrosion
17 comments · newest first
CA
Carri
19 days ago
It’s a complex issue, all options have merit.
ST
Stephanie
24 days ago
All factors matter, but I still think velocity is key.
AM
Amira
30 days ago
Definitely, but we can't ignore the role of temperature.
ER
Erinn
1 month ago
True, but oxygen is a big player in corrosion.
CA
Carri
1 month ago
I feel A) Microbiological activity is important too. More microbes can cause issues.
ST
Stephanie
2 months ago
I’m leaning towards D) Velocities. Slower flow might increase corrosion risk.
AM
Amira
2 months ago
I agree, but C) Process temperatures could also be a factor. Higher temps can lead to more corrosion.
ER
Erinn
2 months ago
I think it's B) Oxygen content. Less oxygen means more corrosion.
IL
Ilona
2 months ago
Not so sure about D) Velocities being a big deal. What do you all think?
EL
Elenore
2 months ago
I agree with B) Oxygen content. Makes sense!
BO
Bok
2 months ago
Surprised it's not A) Microbiological activity! I thought that was a big factor.
FR
Frederica
3 months ago
I think it's C) Process temperatures. Higher temps usually help.
MI
Micaela
3 months ago
Definitely B) Oxygen content. Less oxygen means more corrosion.
TH
Thaddeus
3 months ago
I recall a practice question that mentioned microbiological activity, but I’m not convinced it’s the right choice for this one.
TI
Timothy
3 months ago
I’m a bit confused. I thought lower temperatures would generally reduce corrosion, but I can’t remember if that applies here.
JA
Jaime
3 months ago
I feel like we discussed how increasing velocities can help reduce corrosion, so maybe D) Velocities is the answer?
GE
Georgene
3 months ago
I think it might be B) Oxygen content, but I’m not entirely sure. I remember something about oxygen being a key factor in corrosion.