API-571 Practice Questions
Prepare for API-571 with more than an answer.
- Exam fee
- $575 USD
- Level
- Professional
- Valid for
- 3 years
Domains covered on the exam 5
- Mechanical and Metallurgical Failure Mechanisms
- Uniform or Localized Loss of Thickness
- High Temperature Corrosion (>400°F/204°C)
- Environment-Assisted Cracking
- Other Mechanisms
- 1
For 5Cr-0.5Mo, what is the threshold temperature for creep? A.500º FB.800º FC.600º FD.700º F
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Correct answer: B
- 2
________ has been a major problem on coke drum shells. A.Thermal fatigueB.Stress crackingC.ErosionD.Temper embrittlement
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Correct answer: A
- 3
Thermal fatigue cracks propagate ________ to the stress and are usually dagger shaped, transgranular and oxide-filled. A.AxialB.DiagonalC.TransverseD.Angular
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Correct answer: C
- 4
__________ 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. A.GraphitizationB.SofteningC.Temper EmbrittlementD.Creep
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Correct answer: A
- 5
What structure is 304 stainless steel? A.MartensiticB.AusteniticC.DuplexD.Ferritic
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Correct answer: B
- 6
_________ is the result of cyclic stress caused by variations in temperature. A.CreepB.Thermal FatigueC.Cyclic CrackingD.Stress Corrosion Cracking
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Correct answer: B
