API Exam API-571 Topic 1 Question 83 Discussion

Actual exam question for API's API-571 exam

Question #: 83
Topic #: 1

[All API-571 Questions]

Protection in a boiler from boiler feed water corrosion is accomplished by:

AInjecting chlorines to kill microbiological bugs.

BInjecting caustic to lower the ph to < 4.0.

CLowering solids content in boiler feed water to less than 50 ppm.

DMaintaining a protective corrosion layer of magnetite (Fe3O4).

Show Suggested Answer

Suggested Answer: D

by Arthur at Apr 13, 2024, 10:22 AM

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Jani

7 months ago

I think the best option is D, maintaining a protective corrosion layer of magnetite, for long-term protection.

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Reita

7 months ago

But isn't it important to maintain the protective layer to prevent corrosion?

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Catrice

7 months ago

I'm leaning towards C, lowering solids content in boiler feed water.

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Jamal

8 months ago

I agree with Injecting chlorines or caustic seems too harsh for the boiler.

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Reita

8 months ago

I think the answer is D, maintaining a protective corrosion layer of magnetite.

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Cordelia

8 months ago

I disagree with Stevie. Chlorines are more for disinfection, not corrosion protection.

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Stevie

9 months ago

But why not A) Injecting chlorines to kill microbiological bugs? That sounds like it could also prevent corrosion.

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Diego

9 months ago

I agree with Arthur. It makes sense to maintain a protective corrosion layer.

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Arthur

9 months ago

I think the answer is D) Maintaining a protective corrosion layer of magnetite (Fe3O4).

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Noe

9 months ago

Okay, let's see. Chlorine is for disinfection, caustic lowers pH, and solids content is important, but I think the magnetite layer is the key here.

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Santos

10 months ago

Haha, I bet the instructor is trying to trick us with these answer choices. They all seem kind of plausible.

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Salena

10 months ago

I'm not too confident about this question. Maybe I should have studied more on boiler water chemistry.

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Fausto

10 months ago

Ah, I know this one! It's all about maintaining that protective magnetite layer, right?

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Larae

10 months ago

Hmm, I think I remember learning about this in my boiler operator training. Let me think it through.

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Katina

8 months ago

A) Injecting chlorines to kill microbiological bugs.

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Stefania

8 months ago

C) Lowering solids content in boiler feed water to less than 50 ppm.

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Keneth

8 months ago

D) Maintaining a protective corrosion layer of magnetite (Fe3O4).

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Elsa

10 months ago

Wow, this is a tricky one! I'm not sure I know the right answer, but I'll give it my best shot.

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