Forms of corrosion Study guides, Class notes & Summaries

What is the most important factor affecting the useful life of service lines? - Answer It is the ability of the material to resist internal and external corrosion When does Suction Head exist? - Answer Suction head exists when the source of supply is above the centerline of the pump. What is Net positive Suction Head (NPSH) - Answer NPSH is the pressure under which water enters the eye of the impeller in a centrifugal pump. Insufficient NPSH is the main cause of pump cavitation Ex...

What is a fumigant • Gases liquid, solids • Odorless and invisible • Toxic when absorbed or inhaled • Spread & penetrate spaces & materials • Non-selective pesticide (kills all) • Concentration, time, temp & humidity • No residual or post application protection • Forms • Cylinders • CO2: Carbon Dioxide: treat stored commodities, containment structures, and outdoor burrowing rodents • SO2: sulfur dioxide: wine barrels, corks, certain commodities Pros vs Cons ...

If you want additional copies of a publication what form would you use to order on it? - Correct Answer DD Form 1348 What standard identification code (SSIC) is assigned to ordnance - Correct Answer 8000-8999 Aviation armament and ordnance accessories are detailed in what series of NAVAIR Manuals? - Correct Answer 11 What NAVAIR major category/series designation number is assigned to ordnance manual - Correct Answer 11 series What NAVAIR major category/series designation number is as...

NACE CP2 EXAM QUESTIONS AND ANSWERS...

NACE 1(verified answers) graded A+ already passed !2023Anode The electrode of an electrochemical cell at which oxidation occurs? Anode Electrons flow away from the ______ in the external circuit. Anode Corrosion usually occurs and metal ions enter the solution at the ______? Cathode The electrode of an electrochemical cell at which reduction is the principal reaction? Cathode Electrons flow towards the ______ of an electrochemical cell. Cathodic Protection...

An attached garage shall be separated from all habitable rooms above the garage with not less than 5/8 of an inch gypsum board A structure that is intended for swimming or recreational bathing is considered to be a swimming pool if it contains water over 24 inches What type of fastener do you use to install cabinets? Truss head wood screws The process of preparing sand underneath a concrete slab requires sand to be Compacted Habitable space in a basement shall hav...

Lead Inspector/Risk Assessor | ALL QUESTIONS AND ANSWERS 2023 GRADED A+!! Permanent abatement options include... - Paint removal, component removal, enclosure, encapsulation Lead Inspector - A certified individual who conducts a surface-by-surface investigation to determine the presence of lead-based paint. Lead-based paint - 1 mg/cm2 5000micrograms/g = 5000ppm .5% by weight What is lead based paint? - any surface coating containing at least 1 miligram per square centimeter of lead...

How is the process of steel corrosion ALWAYS described? - Correct answerelectrochemical Based on the galvanic series presented in the NACE CIP Level 1 Manual, which three can be used effectively as galvanic anodes for carbon steel? - Correct answer-zinc, aluminum, magnesium A decrease in temperature will generally cause the corrosion rate to _____ - Correct answer-decrease The electrolyte is a medium which carries the following type of current? - Correct answer-Ionic Corrosion occurring ...

oxidation - ANSWER loss of electrons, positive charge atoms (anode) reduction - ANSWER gain of electrons, negative charged atoms (cathode) forms of corrosion - ANSWER uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Car...

NACE CP2 Exam Questions and Answers oxidation correct answerloss of electrons, positive charge atoms (anode) reduction correct answergain of electrons, negative charged atoms (cathode) forms of corrosion correct answeruniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion...