API API-571 Exam Actual Questions

The questions for API-571 were last updated on Nov. 25, 2024.

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Topic 1 - Exam A

Question #1 Topic 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.

A. Graphitization
B. Softening
C. Temper Embrittlement
D. Creep

Reveal Solution Discussion 1

Correct Answer: A 🗳️

Question #2 Topic 1

What structure is 304 stainless steel?

A. Martensitic
B. Austenitic
C. Duplex
D. Ferritic

Reveal Solution Discussion 1

Correct Answer: B 🗳️

Question #3 Topic 1

_________ is the result of cyclic stress caused by variations in temperature.

A. Creep
B. Thermal Fatigue
C. Cyclic Cracking
D. Stress Corrosion Cracking

Reveal Solution Discussion 1

Correct Answer: B 🗳️

Question #4 Topic 1

General or localized corrosion of carbon steels and other metals caused by dissolved salts, gases, organic compounds or microbiological activities is called ________.

A. Flue Gas Corrosion
B. Atmospheric Corrosion
C. Cooling Water Corrosion
D. None of the Above
E. All of the Above

Reveal Solution Discussion 1

Correct Answer: C 🗳️

Question #5 Topic 1

What structure is 410 stainless steel?

A. Martensitic
B. Austenitic
C. Duplex
D. Ferritic

Reveal Solution Discussion 1

Correct Answer: A 🗳️

Question #6 Topic 1

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