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Daily Quiz (69)

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Alkyds are a specific type of what broader class of resins?

Monday, December 22, 2014


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

Wednesday, December 17, 2014


True or false: Thick-film, epoxy novolac coatings are sometimes recommended for railroad tank cars carrying crude oil.

Tuesday, December 16, 2014


Sulfate-reducing bacteria contribute to corrosion by what mechanism?

Monday, December 15, 2014


White rust appears on which of the following substrates?

Friday, December 12, 2014


True or false: Dry ice pellets used as abrasive cannot produce a profile on steel.

Monday, December 8, 2014


True or false: Sponge jetting requires ultra-high pressure (UHP) water.

Thursday, December 4, 2014


Which of the following is not an inhibitive pigment used in coatings for corrosion control?

Monday, December 1, 2014


True or false: In air abrasive blast systems, the bull hose carries pressurized air and abrasive to the blast nozzle.

Wednesday, November 26, 2014


True or false: Oil contamination of the atomizing air in an air spray system can cause fish eyes in the coating film.

Wednesday, November 19, 2014


Which of the following isocyanates is used in polyurethane coatings?

Tuesday, November 18, 2014


High ratio calcium sulfonate alkyds are recommended by some coating specialists for what kind of service?

Monday, November 17, 2014


What polymer concrete resin is based on an alcohol derived from agricultural wastes such as rice and oat hulls and corn cobs?

Thursday, November 13, 2014


True or false: TDI and MDI are aromatic isocyanates.

Friday, November 7, 2014


In coatings work, what is a limpet cell?

Thursday, November 6, 2014


The last solvent in a solvent blend to evaporate from an applied coating film is called what?

Wednesday, November 5, 2014


True or false: An epoxy ester coating is a single-package material.

Tuesday, November 4, 2014


True or false: In paint failure analysis, gas chromatography-mass spectroscopy is normally used to detect and identify volatile or semi-volatile materials.

Monday, November 3, 2014


True or false: A dilatant paint is said to be thixotropic.

Monday, October 20, 2014


True or false: Coatings based on silicone resins have little resistance to chalking.

Thursday, October 16, 2014


True or false: Surface profile on steel can be measured in the field.

Wednesday, October 15, 2014


True or false: Osmotic blisters are likely to be filled with liquids that contain solvents or salts.

Monday, October 13, 2014


In what country was the first large-scale application of zinc-rich coatings?

Friday, October 10, 2014


What level of voltage does a wet sponge holiday detector employ?

Monday, October 6, 2014


True or false: Power tool cleaning is effective in removing soluble salts from a steel substrate.

Friday, October 3, 2014


True or false: Siloxane sealers are normally applied to concrete substrates in film thicknesses of two to three mils.

Thursday, October 2, 2014


True or false: Coatings that form a film by coalescence are two-component materials.

Monday, September 29, 2014


True or false: Inorganic zinc-rich coatings, left untopcoated, decrease in barrier protection over time.

Friday, September 26, 2014


True or false: PVDF resins can be emulsified in water to create a single-component, ambient-cured, fluoropolymer coating.

Thursday, September 25, 2014


True or false: SSPC’s technology update on overcoating says that failure by delamination is a minor risk.

Wednesday, September 24, 2014


What kind of concrete sealers penetrate the pores of the concrete and form little, if any, film build?

Monday, September 22, 2014


Micaceous iron oxide is a pigment providing what kind of properties to protective coatings among the choices listed?

Friday, September 19, 2014


True or false: To be effective, a seal coat over a thermal-sprayed zinc coating must be applied after a significant amount of natural oxidation has occurred.

Tuesday, September 16, 2014


True or false: Some moisture meters for concrete are based on AC impedance.

Friday, September 12, 2014


True or false: An inorganic zinc-rich primer can be topcoated as soon as it is dry.

Thursday, September 11, 2014


True or false: According to a recent JPCL article, application of silicone foul-release coatings presents numerous problems that need to be overcome.

Wednesday, September 10, 2014


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

Thursday, September 4, 2014


True or false: A polysiloxane is an aliphatic polyurea.

Wednesday, September 3, 2014


True or false: Calcium aluminate mortars are sometimes used as linings for rehabilitation of manholes.

Friday, August 29, 2014


True or false: It is easier to remove coal tar epoxy than coal tar enamel from a steel substrate.

Thursday, August 28, 2014


True or false: A black light test can detect certain oil films on a bare steel substrate.

Wednesday, August 27, 2014


True or false: There are both pneumatic and electric remote controls for air abrasive blast systems.

Monday, August 25, 2014


True or false: A polyaspartic coating is an aliphatic polyurea.

Thursday, August 21, 2014


Certain machine guns, like the old Thompson sub-machine gun, are called chopper guns. What is a chopper gun in coatings work?

Wednesday, August 20, 2014


True or false: According to a recent JPCL article, foul-release hull coatings can be divided into hard and soft technologies.

Tuesday, August 19, 2014


True or false: Inorganic zinc-rich primers should be topcoated as soon as they appear to be dry.

Friday, August 15, 2014


True or false: Non-osmotic blisters can develop in coatings on concrete floors.

Wednesday, August 13, 2014


True or false: The greater the permeability of a coating on concrete, the more effectively it will perform.

Tuesday, August 12, 2014


What mechanism of corrosion protection does zinc phosphate provide to coatings?

Monday, August 11, 2014


True or false: Plastic shrinkage cracking of concrete can occur during the first few hours after placement.

Friday, August 1, 2014


True or false: Some alkyd formulations will not undergo saponification if applied to high-pH substrates.

Thursday, July 31, 2014


True or false: The Maritime Environment Protection Committee (MEPC) is a committee of the United Nations.

Tuesday, July 29, 2014


What is a common term for osmotic blistering of coatings due to thermal gradients?

Friday, July 25, 2014


True or false: Certain coating types can saponify on galvanized surfaces with elevated alkalinity.

Wednesday, July 23, 2014


If coatings were removed before abrading a concrete floor slab to conduct the ASTM anhydrous calcium chloride test, how much time must elapse between grinding and conducting the test?

Friday, July 18, 2014


True or false: Abrasive particle size, shape, and hardness all have an impact on the creation of surface profile.

Tuesday, July 8, 2014


Ammonium polyphosphate is most likely to be found in what type of coating?

Monday, July 7, 2014


What do HUNKOR and CEFRACOR have in common?

Thursday, July 3, 2014


Which one of the following organizations does not train and certify coating inspectors?

Wednesday, July 2, 2014


True or false: An ASTM subcommittee is working on a proposed standard to test the slip-coefficient properties of coatings used in slip-critical bolted connections.

Monday, June 30, 2014


True or false: Abrasive blast particles in an air abrasive blast system using a venture nozzle can achieve speeds of 450 mph or higher.

Friday, June 27, 2014


True or false: OSHA’s work practice controls to minimize exposure to hazardous materials, such as toxic dust, can include, in most instances, job rotation.

Wednesday, June 25, 2014


What organization developed a standard for measuring concrete surface profile with replica putty?

Tuesday, June 24, 2014


What organization publishes the Standard for the Preparation of Steel Substrates for PSPC?

Monday, June 23, 2014


What is the relationship between a discontinuity and a holiday in a coating?

Friday, June 20, 2014


Among the various types of anti-foulings for ships, what are foul-release coatings?

Tuesday, June 17, 2014


Which method of blasting produces the least blast debris, presuming the same substrate in the same condition is being cleaned by each method?

Friday, June 13, 2014


What kind of test was developed by Frederick Knoop and colleagues?

Thursday, June 12, 2014


What SSPC/NACE blast cleaning standard is equivalent to Sa 2, Thorough Blast Cleaning, in ISO 8501-1?

Tuesday, June 10, 2014


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