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Daily Quiz (53)


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


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


An ultrasonic dry film thickness gage can measure dry film coating thickness on what substrate(s)?


True or false: Most fluoropolymer coatings applied to aluminum extrusions have a film thickness of about 1.2 mils, according to a recent D+D In Depth article.


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


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?


What is the name of a rectangular metal tool used to deposit a specified thickness of wet coating on a test panel or other substrate?


What term denotes migration of a substance to the surface of a coating film?


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


True or false: The SSPC Committee on Commercial Coatings is developing guides for laboratory testing, selecting, and assuring the quality of thick-film coatings on CMU assemblies.


What organization published a revised standard in 2012 on measuring dry film coating thickness that focuses on frequency of measurements and acceptablility of acquired results?


The thickness of a coating is sometimes expressed in mils, sometimes in mircrometers or microns. Which unit is thicker, 1 mil or 1 micron?


What is the name of a rectangular metal tool used to deposit a specified thickness of wet coating on a test panel or other substrate?


In measuring coating thickness, one mil equals approximately how many microns?


What type of a coating contains an acid source, a carbon source, and a blowing agent?


True or False: Film build is normally achieved in application of thermal-sprayed zinc coatings by slowing the travel speed of the spray gun.


What organization is developing a guide for testing the suitability of thin-film coatings as air barriers?


True or False: When measuring dry film coating thickness in accordance with SSPC-PA 2, the required number of “area measurements” is based on the size of the structure.


How is a Tooke Gage different from a magnetic dry film thickness gage in measuring dry coating thickness?


True or False: An ultrasonic dry film thickness gage can successfully measure coating thickness on steel edges when an edge-retention primer is used.


Which of the following characteristics of a conventional, thin-film coating is easily tested in the field?


True or False? SSPC-PA 2 (2012) addresses the use of two types of gages for measuring dry film coating thickness.


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


How is a Tooke Gage useful in failure investigations?


What is the name of the metal bar used to deposit a specified thickness of wet coating film on a substrate?


How is film build normally achieved during the thermal spraying of metallic coatings?


True or false: An ultrasonic dry film thickness gage can measure coating thickness on concrete, but not on wood substrates.


Which of the following dry film thickness gages is destructive?


True or false: The standard for non-destructive measurement of dry coating film thickness on concrete is different from the one used to measure dry coating film thickness on steel.


What is the alphanumeric designation of the SSPC Paint Application Standard for measuring the thickness of dry coatings on concrete?


True or false: Magnetic gages can be used for the non-destructive measurement of dry film thickness of coatings on concrete substrates.


What two organizations recently worked cooperatively to revise their standards on measuring dry film thickness of coatings?


True or False: Testing standards for measuring dry film thickness of coatings (SSPC, IMO, ISO, and AS) are remarkably similar in their requirements for sampling and the number of measurements that have to be taken.


According to ASTM D6083, what should be the dry film thickness of an acrylic coating used in roofing?


True or false: Magnetic dry film thickness gages are used to measure the thickness of coatings over concrete.


What type of gage can be used in the field to accurately judge the dry film thickness of coatings on steel edges?


The measurement “mil” is often used to specify coating thickness, especially over steel and critical service for concrete. How big is a mil?


What is the likely result of applying a relatively inflexible coating at a film thickness much higher than recommended by the manufacturer?


What organization recently conducted a study on the air barrier performance of conventional coatings applied at conventional film thicknesses?


In dealing with coating thickness requirements, 25 microns equals approximately how many mils?


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


A variation on polyurethane coating chemistry that allows for faster curing times and higher film builds has what name?


True or false: From a wet film thickness measurement of an applied coating with a notch gage, it is possible to calculate what the dry film thickness will be.


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


True or false: SSPC has a standard for measuring dry film thickness of paint over concrete substrates.


How does a dry film thickness measurement of a coating on steel take into account the blast profile on the steel?


What is the effect on film build of increasing the solids content in a coating?


When a coating is specified to have an 8-mil dry film thickness, and its volume solids is 59%, what should be the wet film thickness of the coating?


How is film build normally achieved during the thermal spray process?


According to ASTM D 6083, what should be the minimum dry film thickness for elastomeric acrylic cool roof coatings?


Which of the following is a destructive film-thickness measurement instrument?


Which of the following can be a driving force for water absorption through a paint film to a steel substrate?


 
 
   

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