Download Corrosion and Materials.API-571.SelfTestEngine.2019-03-15.272q.vcex

Vendor: API
Exam Code: API-571
Exam Name: Corrosion and Materials
Date: Mar 15, 2019
File Size: 151 KB
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Demo Questions

Question 1
__________ is a change in the microstructure of certain carbon steels and 0.5 Mo steels after long term operation in the 800º F to 1100º F range.
  1. Graphitization
  2. Softening
  3. Temper Embrittlement
  4. Creep
Correct answer: A
Question 2
What structure is 304 stainless steel?
  1. Martensitic
  2. Austenitic
  3. Duplex
  4. Ferritic
Correct answer: B
Question 3
General or localized corrosion of carbon steels and other metals caused by dissolved salts, gases, organic compounds or microbiological activities is called ________.
  1. Flue Gas Corrosion
  2. Atmospheric Corrosion
  3. Cooling Water Corrosion
  4. None of the Above
  5. All of the Above
Correct answer: C
Question 4
What structure is 410 stainless steel?
  1. Martensitic
  2. Austenitic
  3. Duplex
  4. Ferritic
Correct answer: A
Question 5
The sudden rapid fracture under stress (residual or applied) where the material exhibits little or no evidence of ductility or plastic deformation is called _________.
  1. 885º F Embrittlement
  2. Temper Embrittlement
  3. Stress Corrosion Cracking
  4. Brittle Fracture
Correct answer: D
Question 6
What structure is 409 stainless steel?
  1. Martensitic
  2. Austenitic
  3. Duplex
  4. Ferritic
Correct answer: D
Question 7
Low alloy steels contain a maximum of _______ chrome.
  1. 5%
  2. 6%
  3. 7.5%
  4. 9%
Correct answer: D
Question 8
Which of the following can be affected by 885º F Embrittlement?
  1. 410 SS
  2. 430 SS
  3. 308 SS
  4. Alloy 2205
  5. A, B and D
Correct answer: E
Question 9
________ has been a major problem on coke drum shells.
  1. Thermal fatigue
  2. Stress cracking
  3. Erosion
  4. Temper embrittlement
Correct answer: A
Question 10
Thermal fatigue cracks propagate ________ to the stress and are usually dagger shaped, transgranular and oxide-filled.
  1. Axial
  2. Diagonal
  3. Transverse
  4. Angular
Correct answer: C
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