Daily Quiz (113)


Since 2016, the number of bridges in “good” condition has been:


True or False: A Florida court recently ruled that the policy term “act of nature” would be extended to include controllable and preventable events, such as corrosion and rust.


Following the collapse of Champlain Towers South in Florida, investigation announced that they found what type of building failure, which contributed to the collapse?


According to a recent Australasian Corrosion Association report, corrosion effects can contribute how much to global domestic product?


According to Todd Lavender, 558th AMXSS process engineer and squadron‘s corrosion control process manager, a C-5 aircraft uses about how many gallons of primer to cover?


How many gallons of sewage was reported to have leaked following a breach in Longboat Key’s main sewer line due to corrosion in Florida, between June 17 and June 29, 2020?


Recently, researchers from the Yale School of Engineering and Applied Science announced the development of a new coating strategy for __________ that provides corrosion protection.


Scientists from the Helmholtz Centre for Materials and Coastal Research in Geesthacht, Germany, have recently developed a ________ alloy that has an elevated resistance to corrosion.


When performing emergency maintenance and repair regarding corrosion under insulation in oil and gas facilities, what is the potential cost of shutting down equipment?


What university was recently awarded a $718,000, three-year grant from the Nuclear Energy University Program to use corrosion science to help identify potential at-risk canisters used to store spent nuclear fuel?


Recently, a team of researchers from the Oregon State University’s College of Engineering conducted a study using supercomputer simulations to observe how _________ causes corrosion and degrades iron.


True or false: The development of hot-spread epoxy phenolic coating resulted from the discovery of the “rusted steel substrate effect,” among others.


Traditional epoxy phenolic coating technology for CUI mitigation recommends a film thickness for each coat to be typically __ - __ mils.


When fusion-bonded epoxy coatings are exposed to UV rays, they undergo a degradation commonly referred to as:


True or false: At a pH of less than 10, corrosion can occur if there is less than one inch of cover in immersed concrete or the service environment is susceptible to biogenic corrosion.


True or false: A form of biogenic corrosion can be caused by fats, oils, and grease in the form of food waste.


What is the specific term for the corrosion process caused by the biological conversion of hydrogen sulfide gas to sulfuric acid in sewers and wastewater facilities?


According to this JPCL article, historical records, field investigations and laboratory investigations have revealed that the following factors may influence surface casing corrosion, except:


True or False: Reducing the number of bolted connections in gravity sludge thickener components can help reduce the risk of galvanic corrosion.


True or false: Regarding the profile on blast-cleaned steel, a shallow peak height with a dense peak density may be beneficial, versus a deep peak height as is often specified.


What is one result of the removal of an oxide layer from steel?


True or false: Moisture-cured polyurethanes are two-component materials.


The term, “wet storage stain,” is used to describe a condition of what substrate?


True or false: CCAS stands for Corrosion Control Application Specialist, an SSPC training program.


True or false: NACE International held a corrosion awareness day in Aberdeen, Scotland, last month.


True or false: A small defect in a coating on steel reinforcement metal in concrete can cause rapid deterioration of the steel.


What is the term used to describe “the formation of localized corrosion products scattered over the surface of a substrate in the form of knob-like mounds”?


True or false: In railcar interiors, baked phenolics are normally used for product purity where corrosive chemicals are not being shipped, according to a JPCL article.


True or false: Mill scale is synonymous with corrosion scale.


Corrosion of steel rebar begins to occur at what pH level of pore water near the rebar in concrete?


What general name is given to a coating that responds with corrective measures when corrosion is detected beneath the coating?


True or false: Bimetallic corrosion, such as that which results when two dissimilar metals are connected electrically in a water tank interior, occurs most rapidly when the two metals are far apart rather than close together in the galvanic series.


True or false: A Dutch study found that use of biodiesel as a component in diesel fuel blends could be leading to increased corrosion in underground storage tanks that hold the fuel.


True or false: According to a study by German researchers, specifying a particular edge geometry is not the most significant factor in controlling corrosion of steel edges in sea-water environments.


True or false: Sulfate-reducing bacteria contribute to corrosion by reacting with water to produce hydrogen sulfide.


True or false: The recent cable failure on the James B. Edwards Bridge, in Charleston, South Carolina, was not caused by corrosion, according to the South Carolina Department of Transportation.


True or false: Pitting corrosion is caused by the formation and collapse of bubbles.


True or false: Fitz’s Atlas details corrosion rates around the world.


True or false: Filiform corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel.


True or false: An EPA study in 2016 showed that 83 percent of underground storage tanks containing diesel fuel showed moderate to severe corrosion.


White corrosion products are typically found on what type of substrate?


What organization recently announced formation of the Corrosion Consortia to foster research on corrosion control?


True or false: A limpet cell is a corrosion cell in a steel pit that contains soluble salts.


True or false: According to a recent JPCL article, “freckles”—which pinpoint areas of corrosion consisting of spots of black iron oxide—appeared after accelerated corrosion testing of steel coated after reblasting to reduce an excessively high profile.


True or false: The terms “wet storage stain” and “white rust” denote two different phenomena.


True or false: Crevice corrosion may occur between individual sheets of metal during shipment and storage of stacks or bundles.


True or false: Heterogeneities in steel, such as in grain structure and composition, do not contribute to corrosion.


What coating component controls corrosion by modifying anode and/or cathode reactions on steel substrates, driving the steel potential into its passive region?


What is the term used to describe the development of small, knob-like mounds of corrosion products on the surface of a substrate?


True or false: Crevice corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel.


True or false: A recent JPCL article made the point that accelerated corrosion testing as a means to predict what occurs in the real world today must be deemed irrelevant.


True or false: According to a recent JPCL article, the acidity of rainfall east of the Mississippi is at a pH level sufficiently low to promote a corrosion rate on zinc substrates, such as galvanizing, that is less than ideal.


In a corrosion cell, where does the corrosion occur?


What is another term sometimes used for underfilm corrosion?


“Simply put, we aim to decipher the fundamental mechanisms that cause corrosion so that we can combat it more effectively in the future.” So said a researcher at the University of Manchester about a new project partially funded by what oil company?


True or false: Inhibitive pigments contribute to increasing the permeability of masonry coatings.


What generic coating type has been tested by the U.S. Naval Research Laboratory and shown to resist corrosion while at the same time improving ballistic protection of armored amphibious assault vehicles?


True or false: Lydia Frenzel says that flash rust and rust back are two terms for the same phenomenon.


True or false: With periodic field maintenance, a coating system for steel bridges with a zinc-rich primer and typically used midcoats and topcoats can exceed a service life of 100 years, according to a JPCL article on the subject.


What type of corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel?


What effect, often detrimental to linings, is created by the Atlas cell test?


Who was the original author of the NACE publication, Corrosion Prevention by Protective Coatings?


ISO/TC 35/SC 14 is in charge of a standard on what topic?


According to a JPCL article, which of these statements about Corrosion Under Insulation (CUI) is not true?


What is it called when a coating controls corrosion by preventing the passage of soluble ions to the underlying steel?


Where would you find sulfate-reducing bacteria?


By what process is steel covered with an impervious oxide to inhibit chemical or electrochemical reactions on the surface?


The list of corrosion control technologies, as described by NACE, includes cathodic protection, chemical inhibitors, coatings and what fourth technology?


Sulfate-reducing bacteria that cause corrosion of steel and concrete are likely to be found in what media?


Micaceous iron oxide provides what type of anti-corrosion protection to coatings?


True or false: One cause of rebar corrosion is carbonation of the concrete around the rebar.


Sulfate-reducing bacteria contribute to corrosion by what mechanism?


What general name is given to a coating that responds with corrective measures when corrosion is detected beneath the coating?


What type of corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel?


True or false: According to a study by German researchers, specifying a particular edge geometry is not the most significant factor in controlling corrosion of steel edges in seawater environments.


True or false: The high alkalinity of concrete causes corrosion of rebar.


What type of corrosion is caused by the contact of dissimilar metals immersed or buried in an electrolyte?


True or false: One cause of rebar corrosion is carbonation of the concrete around the rebar.


What type of corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel?


Sulfate-reducing bacteria contribute to corrosion by what mechanism?


True or false: Sacrificial protection of steel can be achieved only with metallic coatings, such as galvanizing or zinc-rich paints.


True or false: When dissimilar metals are in contact in the presence of an electrolyte, the more noble metal will experience galvanic corrosion.


True or false: Contact between dissimilar metals can cause galvanic corrosion.


In a corrosion cell, where does the corrosion occur?


What kind of corrosion is caused by the formation and collapse of bubbles?


True or false: Ethanol is corrosive and highly water soluble, according to the EPA.


Which of the following features of a corrosion-control coating contribute to barrier protection?


True or false: When two dissimilar metals are in contact in the presence of an electrolyte, the more noble metal will experience galvanic corrosion.


In coating work, what is a jeep test?


True or false: Odor control ventilation systems in wastewater treatment plants stop biogenic sulfide corrosion.


A recent 5-year inspection of a lining system on a potable water tank bottom that had suffered significant soil-side corrosion in Melbourne, Australia, showed excellent performance from what lining type?


True or False: Some cementitious liners for repairing manholes contain chemical additives to kill bacteria that cause microbiologically induced corrosion.


True or false? According to a study by German researchers, specifying a particular edge geometry is the most significant factor in controlling corrosion of steel edges in sea-water environments.


What type of corrosion is characterized by a definite thread-like structure and directional growth under coatings on steel?


What is ICORR?


The direct cost of corrosion in the United States is nearly:


True or False: Internal corrosion is often a problem for above-ground storage tanks used to contain potable water.


Who is the organizer of the Mega Rust Conference, which focuses on naval corrosion issues?


When dissimilar metals are in contact with one another, what kind of corrosion is likely to occur?


Under what condition is weathering steel most likely to suffer accelerated corrosion?


What type of coating combats corrosion mainly by preventing moisture and oxygen from reaching the steel surface?


True or false: Cyclic corrosion testing of protective coatings in the laboratory is now considered a better indicator of field performance than the traditional salt fog test, ASTM B 117.


What effect does the high alkalinity of concrete have on corrosion of rebar within the concrete?


What is the critical corrosion temperature range for carbon steel under insulation that a coating must withstand, according to NACE?


What is another name for dissimilar metal corrosion?


According to the World Corrosion Organization, the global cost of corrosion in 2011 was what amount in US dollars?


True or false: One cause of rebar corrosion in concrete is carbonation of the concrete surrounding the rebar.


What general name is given to a coating that responds with corrective measures when corrosion is detected beneath it?


Which of the following elements of design of steel structures is most likely to promote corrosion?


What are the conditions necessary for corrosion of steel to occur?


Corrosion of rebar is likely to cause which of the following conditions in concrete?


In a corrosion cell, where does the corrosion occur?


Sulfate-reducing bacteria contribute to corrosion by what mechanism?


 
 
   

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