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

Limited Time Offer

25%

Off

Get Premium API-571 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Jani

6 months ago

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

upvoted 0 times

...

Reita

6 months ago

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

upvoted 0 times

...

Catrice

6 months ago

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

upvoted 0 times

...

Jamal

6 months ago

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

upvoted 0 times

...

Reita

7 months ago

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

upvoted 0 times

...

Cordelia

7 months ago

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

upvoted 0 times

...

Stevie

7 months ago

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

upvoted 0 times

...

Diego

7 months ago

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

upvoted 0 times

...

Arthur

7 months ago

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

upvoted 0 times

...

Noe

8 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.

upvoted 0 times

...

Santos

8 months ago

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

upvoted 0 times

...

Salena

8 months ago

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

upvoted 0 times

...

Fausto

8 months ago

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

upvoted 0 times

...

Larae

8 months ago

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

upvoted 0 times

Katina

7 months ago

A) Injecting chlorines to kill microbiological bugs.

upvoted 0 times

...

Stefania

7 months ago

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

upvoted 0 times

...

Keneth

7 months ago

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

upvoted 0 times

...

Elsa

8 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.

upvoted 0 times

...