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If the BHN is 400-500 it may indicate __________.
If the BHN is 400-500 it may indicate __________.A . CarburizationB . HydridingC . Temper embrittlementD . Caustic embrittlementView AnswerAnswer: B
Which of the following materials is susceptible to naphthenic acid corrosion?
Naphthenic acid corrosion is a form of high temperature corrosion that occurs primarily in crude and vacuum units and downstream units that process certain fractions that contain naphthenic acid. Which of the following materials is susceptible to naphthenic acid corrosion?A . Carbon steelB . 300 Series SSC . 400 Series...
What is the chemical symbol for propane or propylene?
What is the chemical symbol for propane or propylene?A . C²B . C3C . C4D . CH4View AnswerAnswer: B
Amine corrosion depends on the design, operating practices, the type of amine, amine concentration, temperature and _________.
Amine corrosion depends on the design, operating practices, the type of amine, amine concentration, temperature and _________.A . PressureB . VelocityC . StressD . None of the aboveView AnswerAnswer: B
The best method to inspect for SCC is ____.
The best method to inspect for SCC is ____.A . WFMTB . UT Shear waveC . AETD . All of the aboveView AnswerAnswer: A
Titanium should not be used in known hydriding services such as _____ or ______.
Titanium should not be used in known hydriding services such as _____ or ______.A . Caustic, amineB . Amine, sour waterC . Sour water, AlkylationD . All of the aboveView AnswerAnswer: B
Mechanical fatigue can cause cracks that initiate from the surface and often form a:
Mechanical fatigue can cause cracks that initiate from the surface and often form a:A . Clam shell appearance.B . Snail shell appearance.C . Turtle shell appearance.D . Shell Oil shell appearance.E . Taco shell appearance.View AnswerAnswer: A
Temper embrittlement can be identified by a(n) shift in the ductile-to-brittle transition temperature measured in a Charpy impact test.
Temper embrittlement can be identified by a(n) shift in the ductile-to-brittle transition temperature measured in a Charpy impact test.A . UpwardB . DownwardC . AbruptD . None of the aboveView AnswerAnswer: A
Cavitation is best prevented by avoiding conditions that allow the absolute pressure to fall below the ___________ of the liquid or by changing the material properties.
Cavitation is best prevented by avoiding conditions that allow the absolute pressure to fall below the ___________ of the liquid or by changing the material properties.A . Minimum pressureB . Pressure/vapor ratioC . Maximum pressureD . Vapor pressureView AnswerAnswer: D
Which material below is not susceptible to caustic corrosion?
Which material below is not susceptible to caustic corrosion?A . Carbon steelB . 400 Series SSC . 300 Series SSD . Low alloy steelView AnswerAnswer: B
