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Api 570

API RP 571 Test

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

2. What structure is 304 stainless steel? A. Martensitic B. Austenitic C. Duplex D. Ferritic

3. is the result of cyclic stress caused by variations in temperature. A. Creep B. Thermal Fatigue C. Cyclic Cracking D. Stress Corrosion Cracking

4. 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

5. 5. What structure is 410 stainless steel? A. Martensitic B. Austenitic C. Duplex D. Ferritic

6. The sudden rapid fracture under stress (residual or applied) where the material exhibits little or no evidence of ductility or plastic deformation is called . A. 885º F Embrittlement B. Temper Embrittlement C. Stress Corrosion Cracking D. Brittle Fracture

7. What structure is 409 stainless steel? A. Martensitic B. Austenitic C. Duplex D. Ferritic

|8. |Low alloy |steels contain a maximum of chrome. |
| |A. |5% |
| |B. |6% |
| |C. |7.5% |
| |D. |9%

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