API-571 Free Sample Questions

Corrosion and Materials Practice Test
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Q1

__________ 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

Q2

What structure is 304 stainless steel? A.MartensiticB.AusteniticC.DuplexD.Ferritic

Q3

_________ is the result of cyclic stress caused by variations in temperature. A.CreepB.Thermal FatigueC.Cyclic CrackingD.Stress Corrosion Cracking

Q4

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 CorrosionB.Atmospheric CorrosionC.Cooling Water CorrosionD.None of the AboveE.All of the Above

Q5

What structure is 410 stainless steel? A.MartensiticB.AusteniticC.DuplexD.Ferritic

Q6

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 EmbrittlementB.Temper EmbrittlementC.Stress Corrosion CrackingD.Brittle Fracture