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Daily Quiz (79)


True or false: SSPC has a standard for hand-tool cleaning of steel before painting that requires a surface profile.


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


True or false: SSPC has a quantitative method for measuring the surface profile of concrete.


What is the name of the instrument that allows the use of tactile and visual comparisons to determine the profile of blast-cleaned steel?


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: According to a recent D+D In Depth article, sealers and thin-film floor coatings typically require a profile in the CSP 3-5 range.


What is another name for surface profile on steel?


True or false: ASTM has a test method for measuring surface profile that is appropriate for profile produced by power tools.


True or false: An entire session of the SSPC 2017 Conference in Tampa is devoted to surface profile.


True or false: Shotcreting produces a surface profile too rough for thin coatings.


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


What organization produces rubber replica templates to judge the degree of surface profile on concrete?


How is profile measured in ASTM D4417?


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: Rubber replica templates from the American Concrete Institute can be used to judge the degree of surface profile on concrete.


True or false: There is a quantifiable method for determining the surface profile on concrete substrates.


What organization issued a standard in 2012 for measuring the profile of concrete after surface preparation?


Replica tape increases in transparency where it is compressed. What feature of surface profile does this reveal?


True or false: The number of peaks in a steel surface profile after blast cleaning has an effect on coating performance.


Surface profile on steel, measured as peak to valley height of the roughness, has several other names, including which of the following?


True or false: SSPC has a standard describing test methods for measuring surface profile.


Surface profile on blast-cleaned steel, measured as peak-to-valley height of the surface roughness, has several other names, including which of the following?


True or false: In addition to SSPC-PA 17, there are two ASTM standards on measuring surface profile of blast-cleaned steel.


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


True or false: There are no quantitative methods for measuring the surface profile of concrete.


True or false: The number of peaks in the surface profile of a steel substrate has no measurable effect on the performance of coatings applied over it.


True or false: SSPC publishes a surface preparation standard for power tool cleaning that requires establishment of a profile on steel.


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


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


True or false: Scabbling produces a rougher profile on concrete than does air-abrasive blasting with sand.


True or false: Research by Roper, Weaver, and Brandon has shown that the peak count of surface profile after blast cleaning has no bearing on coating performance.


True or false: There is a quantitative test method for measuring surface profile of concrete.


What instrument or device is used to determine steel profile roughness/peak count requirements as required in SSPC-SP 17 and described in ASTM D4417?


When replica putty is used to determine the surface profile of concrete according to ASTM D7682, Method A (visual comparison), what is the replica putty compared to in order to assess the profile depth?


True or False: SSPC-SP 11, Power Tool Cleaning to Bare Metal, has no requirement for surface profile.


Press-O-Film is the name of what type of product?


True or False: Silica sand and coal slag abrasive with the same particle size distribution will produce different profile depth ranges on blast-cleaned steel.


Which of the following methods for measuring surface profile is not described in ASTM D4417, “Standard Test Method for Field Measurement of Surface Profile of Blast Cleaned Steel”?


What is another name for the portable stylus instrument used to measure surface roughness of blast-cleaned steel?


What quality control device has the names Keane and Tator connected to it?


What organization has developed a method for measuring and replicating concrete surface profile using replica putty?


What organization created and sells rubber replica templates for determining the surface profile of concrete?


What is the typical range for the peak-to-valley height of surface profile created on steel by power-tool cleaning to bare metal or abrasive-blast cleaning?


True or false: The number of peaks in a steel surface profile created by abrasive blast cleaning has no effect on coating performance.


What degree of surface profile is required on concrete to be treated with a siloxane sealer?


ICRI recommends how much profile in its surface preparation requirements for polymer overlays on concrete?


What is another term for surface profile on steel?


True or false: The number of surface profile peaks in abrasive-blast-cleaned steel has no effect on coating performance.


True or false: An SSPC standard was recently published to provide a standard set of acceptance criteria to determine compliance with surface profile requirements in project specifications.


True or false: Rubber replica templates from the American Concrete Institute can be used to judge the degree of surface profile on concrete.


True or false: A research study by Roper, Weaver, and Brandon indicated that the number of peaks in a steel surface profile created by abrasive blasting has no effect on performance of coatings applied to the steel.


What is the minimum surface profile required to meet SSPC’s specification, Power Tool Cleaning to Bare Metal?


What organization provides visual profile standards for concrete?


True or False: SSPC’s recent revisions to SSPC-SP 11 and SSPC-SP 15 changed the standards’ requirements for surface cleanliness and minimum surface profile.


What organization recently issued a standard for measuring the profile of concrete after surface preparation?


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


Among the options below, which is the most important in achieving the specified surface profile on steel when you are air abrasive blast cleaning?


How can sponge blasting produce a profile on steel?


What happens to the existing profile on steel when UHP water blasting is used to remove rust and/or coatings?


Which of the following is most likely to be the result of excessive profile depth on steel after blast cleaning?


If you need to answer a question about the surface profile requirements for blasted surfaces on a job, what document would you consult?


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


True or false: The size of the steel shot used to shot-blast a concrete floor has no effect on the depth of the surface profile.


What US organization produces concrete surface profile chips to assess the level of profile achieved by surface preparation of concrete?


True or false: In abrasive blasting, the harder the abrasive, the deeper the profile it is likely to generate.


What would be the most likely result of excessive profile on a steel substrate after abrasive blasting?


What is most likely to help you achieve the specified profile on the steel you are blast cleaning?


True or false: A research study by Roper, Weaver and Brandon indicated that the number of peaks in a steel surface profile created by abrasive blast cleaning affects coating performance.


Which of the following is not used for measuring the surface profile of cleaned steel?


Which of the following surface preparation methods for concrete produces the largest surface profile?


ICRI recommends how much surface profile in its surface preparation requirements for polymer overlays on concrete?


Surface profile on steel, measured as peak-to-valley height of the roughness, has several other names, including which of the following.


Which of the following can cause excessive surface profile?


Which of the following terms is out of place in the list?


True or false: In surface preparation operations, hackles are most likely to be formed on steel substrates when the blast abrasive is steel shot.


What organization has surface profile coupons that replicate the degrees of surface profile achieved by surface preparation on concrete floors?


Which of the following parameters affects the depth of the surface profile when steel is cleaned by abrasive blasting?


 
 
   

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