QUESTION: 77

Which of these materials is not susceptible to amine cracking?

Carbon steel
300 Series SS
400 Series SS
Both B and C

Answer(s): D

QUESTION: 78

The presence of ________ in H²S streams increases the severity of high temperature sulfide corrosion at temperatures above about 500º F

Amine
Hydrogen
Sulfides
All of the above

Answer(s): B

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QUESTION: 79

Increasing chromium content in the alloy improves resistance to sulfidation. However, there is little improvement with increasing chromium content until about ________ Cr.

3-5
5-7
7-9
9-12

Answer(s): C

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QUESTION: 80

_________ is the sudden rapid fracture under stress (residual or applied) where the material exhibits little or no evidence of ductility or plastic deformation.

Thermal fatigue
Thermal shock
Brittle fracture
Stress fracture

Answer(s): C

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Free API-571 Exam Braindumps (page: 21)

QUESTION: 77

QUESTION: 78

QUESTION: 79

QUESTION: 80

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