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Daily Quiz (27)


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


True or false: “Solvent pop” occurs because of hackles in a steel substrate.


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.


True or false: A discontinuity in a coating is a more serious flaw than a holiday.


True or false: The coating defect called curtaining is another name for the defect called cissing.


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


Which surface defect is normally not associated with coatings?


Windy conditions are most likely to cause which of the following paint defects?


What is the name of a British publication on coating defects?


True or false: “Discontinuity” and “holiday” mean the same thing in terms of application defects.


True or False: Peeling, flaking, and delamination are examples of cohesive paint failures.


Oil contamination on the substrate or in the atomizing air of conventional spray equipment is most likely to cause what type of coating defect?


In the vernacular of painting, what is another name for “vacation?”


True or False: Amine blush is caused by UV exposure.


What is the subject of Fitz’s Atlas?


What is solvent popping?


What does the coating failure term “crazing” mean?


Windy conditions are most likely to cause which of the following paint defects?


What coating defect is caused by exceeding the recoat interval recommended by the manufacturer for an epoxy coating?


Holiday detectors rely on what functionality to detect voids in coating films?


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


What kind of instrument is used for continuity testing of coatings?


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


True or false: Wet sponge holiday detectors are used when coatings are 20 mils thick or thicker.


What coating defect is most likely to be caused by exceeding the recoat interval recommended for an epoxy coating?


Windy conditions during spray application of coatings would be most likely to cause which of the following paint defects?


What coating defect is likely to be caused by exceeding the recoat interval recommended for an epoxy?


 
 
   

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