- All Exams Instant Download
Which of the following are affected by sulfidation?
Which of the following are affected by sulfidation?A . Carbon steelB . 300 Series SSC . 400 Series SSD . All of the aboveView AnswerAnswer: D
The best way to prevent 885º F embrittlement is to use low ________ alloys, or to avoid exposing the susceptible material to the embrittling range.
The best way to prevent 885º F embrittlement is to use low ________ alloys, or to avoid exposing the susceptible material to the embrittling range.A . AusteniteB . MartensiteC . FerriteD . ChromiumView AnswerAnswer: C
Corrosion due to acidic sour water containing H²S at a pH between 4.5 and 7.0 is called sour water corrosion. Carbon dioxide (CO²) may also be present. Which of the following materials is susceptible to sour water corrosion?
Corrosion due to acidic sour water containing H²S at a pH between 4.5 and 7.0 is called sour water corrosion. Carbon dioxide (CO²) may also be present. Which of the following materials is susceptible to sour water corrosion?A . Carbon steelB . 300 Series SSC . 400 Series SSD ....
The rate of creep deformation is a function of the material, load and temperature. The rate of damage is sensitive to both load and temperature. Generally, an increase of about _______ or an increase of ________ on stress can cut the remaining life in half.
The rate of creep deformation is a function of the material, load and temperature. The rate of damage is sensitive to both load and temperature. Generally, an increase of about _______ or an increase of ________ on stress can cut the remaining life in half.A . 25º F, 15%B ....
_________ is a mechanical form of degradation that occurs when a component is exposed to cyclical stresses for an extended period, often resulting in sudden, unexpected failure.
_________ is a mechanical form of degradation that occurs when a component is exposed to cyclical stresses for an extended period, often resulting in sudden, unexpected failure.A . Stress fatigueB . Mechanical fatigueC . Thermal fatigueD . Cyclic fatigueView AnswerAnswer: B
Nickel based alloys usually contain ________ nickel.
Nickel based alloys usually contain ________ nickel.A . 30%B . 20%C . 10%D . 12%View AnswerAnswer: A
The removal of a material’s protective scale by impacting materials is called:
The removal of a material’s protective scale by impacting materials is called:A . ErosionB . Erosion-corrosionC . Erosion or erosion-corrosionD . IPRSC (imparting particle removal of scale corrosion)View AnswerAnswer: B
Vibration-induced fatigue can be eliminated or reduced through _________ and the use of supports and vibration dampening equipment. Material upgrades are not usually a solution.
Vibration-induced fatigue can be eliminated or reduced through _________ and the use of supports and vibration dampening equipment. Material upgrades are not usually a solution.A . HangersB . Dummy legsC . DesignD . None of the aboveView AnswerAnswer: C
Naphthenic acid corrosion is most severe in _________ flow; in areas of high velocity or turbulence and in distillation towers where hot vapors condense to form liquid phase droplets.
Naphthenic acid corrosion is most severe in _________ flow; in areas of high velocity or turbulence and in distillation towers where hot vapors condense to form liquid phase droplets.A . Single phaseB . Two phaseC . Three phaseD . Negative phaseView AnswerAnswer: B
The amplitude and frequency of vibration as well as the _________ of the components are critical factors in vibration-induced fatigue.
The amplitude and frequency of vibration as well as the _________ of the components are critical factors in vibration-induced fatigue.A . VelocityB . TemperatureC . Fatigue resistanceD . Material propertiesView AnswerAnswer: C
