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Passed Exam Today API-571

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Total 454 questions
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Corrosion and Materials Professional Questions and Answers

Question 49

SSC is a form of hydrogen stress cracking resulting from the absorption of ________ that is produced by the sulfide corrosion process on the metal surface.

Options:

A.

Sulfur dioxide

B.

Hydrogen sulfide

C.

Atomic hydrogen

D.

Hydrogen chloride

Question 50

Atmospheric corrosion:

Options:

A.

Can cause either uniform or localized wall loss.

B.

Always causes localized wall loss.

C.

Always causes uniform wall loss.

D.

Is best detected using profile RT.

Question 51

Which of the following materials is susceptible to sigma phase embrittlement?

Options:

A.

Carbon steel

B.

Low alloy steel

C.

300 Series SS

D.

Both A and B

Question 52

________ significantly increases the probability and severity of blistering, HIC and SOHIC damage.

Options:

A.

Caustic

B.

Cyanides

C.

Stress

D.

Temperature

Page: 13 / 17
Total 454 questions
Get API-571 Full Access Download API-571 PDF