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Daily Quiz (56)


True or false: The knife test used to determine the adhesion of coatings can be performed only in the laboratory.


According to a Durability + Design article on the subject, to totally remove coatings from brick and at the same time to minimize substrate damage and avoid generation of airborne dust, which of the following surface preparation methods makes the most sense?


True or false: In ASTM’s standard on test methods for field measurement of surface profile, the use of a comparator is described.


True or false: In a sieve analysis of abrasives, the sieve number describes the number of openings in a linear inch of sieve mesh.


When one coating specialist wrote in a JPCL article, “I do not advocate the specification of 'sniff tests' because I don’t know how to calibrate a nose,” he was discussing what coating failure phenomenon?


In what SSPC standard can you find requirements for frequency and location of instrument readings and evaluation criteria to ensure that the surface profile over the entire prepared surface complies with project requirements are included?


True or false: Conformance with specified requirements for cleanliness of steel after surface preparation, as described in SSPC standards, is carried out without the aid of instruments.


True or false: Wet adhesion is the ability of a dry coating to adhere to a substrate under wet conditions such as immersion or high humidity.


The first mammal cloned from an adult somatic cell, using the process of nuclear transfer, has the same name as an implement used in quality control testing of coatings. What is it?


True or false: Hackles are protrusions on a coated surface created by abrasive or other particles not removed before the coating was applied.


In coating work, how is a portable stylus instrument used?


Which of the following machines would be used to measure the coefficient of friction of a polished concrete floor?


True or false: In measurements of coating thickness, it takes 25.4 mils to make one micron.


True or false: If inorganic zinc-rich coatings are left untopcoated in atmospheric exposure, they become more porous over time.


What is the name of the term used to denote the failure of solvent to completely evaporate from a paint film due to inadequate drying conditions and/or recoating too soon?


Which of the following is a test used to evaluate and select internal linings for vessels and tanks?


True or false: Amine blush on an epoxy can be readily painted over without fear of failure.


What is the name of a machine used to measure the coefficient of friction of polish-coated floors?


True or false: Wet film thickness gages are inadequate for measuring thickness of fast-set polyurea coatings.


What organization is developing a guide for assessment of pinholes in coatings?


True or false: Use of a digital profile gage according to ASTM 4417-14 requires each area to receive 10 profile readings, and the highest measurement is recorded as the profile of the area being measured.


True or false: An SSPC guide document states that dye color from lubricants remaining on the galvanized nuts of bolted bridge connections after required cleaning or weathering is not believed to be detrimental to coatings applied over it.


What is the name of the test instrument used to determine a coating’s resistance to fading through accelerated exposure to light?


What organization offers a one-day course on “Exterior Wall Quality Assurance”?


The diffusion of colored matter from a substrate through a paint film causing discoloration is called what?


True or false: Though the standard ASTM F2170 requires 72 hours to achieve results, one-day results of relative humidity testing of concrete floors with in-situ probes is typically accurate enough to judge if it is acceptable to apply materials that can tolerate higher moisture content.


True or false: Polyurea coatings require use of low-voltage holiday detectors for continuity testing.


What is another name for a dolly used in coating testing?


True or false: ASTM offers only a visual method for determining the surface profile of concrete.


What inspection instrument uses a wet bulb and a dry bulb?


True or false: For non-conductive coatings up to 20 mils thick applied to conductive substrates, a low-voltage holiday detector is normally used to detect pinholes and other discontinuities.


What is the acronym for an instrument used to conduct the ASTM 4541 test, Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers?


What type of gages are used to measure the dry film thickness of coatings on concrete?


True or false: ASTM D4417 describes three methods for measuring surface profile of blast-cleaned steel using either a digital profile gage or a surface profile comparator or a portable stylus instrument.


True or False: ASTM D3359, “Standard Test Method for Measuring Adhesion by Tape Test,” measures the tensile adhesion of a coating.


How is profile measured in ASTM D4417?


True or false: The Performance Standard for Protective Coatings (PSPC) was created by ISO.


True or false: Prior to being used for measurements, all thermometers should be exposed to the environment they will be used in for sufficient time to allow them to stabilize, according to a recent JPCL article.


True or false: According to a JPCL article, one year is a good starting interval between calibrations of a magnetic dry film thickness gage.


One mil of coating thickness equals approximately how many microns?


A test that requires rubbing a clean black fabric across a painted surface evaluates what attribute of the paint?


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


True or false: There is no quantifiable test method for determining the surface profile on concrete substrates.


True or false: A Tooke gauge can sometimes be used to measure the thickness of individual coats of paint within a multicoat system.


True or false: ASTM has one pull-off adhesion test of coatings on concrete, and a separate one for coatings on metal substrates.


What is another name for a tensile adhesion test of coatings?


Continuity testing of non-conductive coatings applied to a steel substrate is carried out with what type of instrument?


True or False: The more turbid a liquid, the more clear it is.


True or False: ASTM D3359, “Standard Test Method for Measuring Adhesion by Tape Test,” measures the tensile adhesion of a coating.


What organization developed a standard practice for building enclosure commissioning?


Plastic shims are used with what quality-control instruments in coating work?


True or false: The Sealant Waterproofing and Restoration Institute (SWRI) has a Wall Coating Validation Program “to provide specifiers and end-users of wall coating products an unbiased method to judge whether wall coating products will perform at the levels of the manufacturer’s published data sheet for that particular product.”


When production is stopped for inspection of coating work prior to moving on to the next step, what is this quality control step called?


In which one of the following QC applications is a holiday detector (high or low voltage) normally not used?


Which of the following coating adhesion tests is the least quantitative?


What instrument is used for non-destructive measurement of the dry film thickness of coatings on concrete?


 
 
   

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