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Sure Pass Exam API-571 PDF

Page: 7 / 17
Total 454 questions

Corrosion and Materials Professional Questions and Answers

Question 25

What structure is 410 stainless steel?

Options:

A.

Martensitic

B.

Austenitic

C.

Duplex

D.

Ferritic

Question 26

Cracking can occur at low caustic levels if a concentrating mechanism is present. In such cases, caustic concentrations of ________ ppm are sufficient to cause cracking.

Options:

A.

50-100

B.

100-150

C.

150-200

D.

200-250

Question 27

Amine stress corrosion cracking is most often associated with lean amine services. The pure alkanolamine does not cause cracking. Cracking in rich amine services are most often associated with _______ problems.

Options:

A.

H²S

B.

Stress

C.

Wet H²S

D.

Temperature

Question 28

________ of a component is the most important factor in determining a components resistance to mechanical fatigue.

Options:

A.

Design

B.

Temperature

C.

Stress

D.

Pressure

Page: 7 / 17
Total 454 questions