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The PaintSquare Guide to Air abrasive blast cleaning

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Daily Quiz (24)

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True or false: The speed of abrasive exiting a venture nozzle in an efficient air abrasive blasting system is typically about 200 mph.

Monday, January 6, 2014


True or False: In judging the conformance of abrasive blast cleaning of steel with SSPC standards, such as SSPC-SP 10, the photos in SSPC-VIS 1 depicting levels of cleanliness take precedence over the written descriptions of required levels of cleanliness.

Thursday, November 21, 2013


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”?

Tuesday, November 5, 2013


What is the source of potential inhalation hazards that blasters face in air abrasive blasting operations?

Thursday, October 10, 2013


Which of the following SSPC abrasive blast cleaning standards requires the most rigorous degree of cleaning of steel?

Wednesday, April 3, 2013


In air abrasive blasting, why is it sometimes useful to adjust the angle of attack (angle of the nozzle in relation to the workpiece)?

Friday, July 27, 2012


If SSPC-SP 16, “Brush-Off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and Non-Ferrous Metals,” is used to prepare architectural aluminum for recoating, what blast pressure should be used?

Tuesday, May 1, 2012


True or False: Generally speaking, a high-density abrasive will not clean as fast as a less-dense abrasive.

Thursday, April 26, 2012


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

Tuesday, April 10, 2012


What is a typical particle speed for abrasive in an air abrasive blast system that utilizes a venturi nozzle?

Wednesday, March 21, 2012


Which of the following conditions affect the efficiency of an air abrasive blasting system?

Wednesday, March 14, 2012


A reduction in air abrasive blast nozzle pressure from 100 psi to 80 psi has what effect on the productivity of the blasting operation?

Wednesday, December 7, 2011


True or false: ISO Sa2.5, describing very thorough abrasive blast cleaning, gives a more comprehensive written description of the end condition of the steel after blasting than SSPC SP 10/NACE No. 2, Near white metal, which requires a similar end condition.

Monday, September 26, 2011


Which of the following factors influences the appearance of steel after blast cleaning?

Friday, September 23, 2011


What is likely to be the result of oil in the compressed air used for abrasive blast cleaning?

Monday, July 18, 2011


How can air abrasive blasting with sponge media create a profile on steel?

Thursday, July 14, 2011


If you are using a supplied-air respirator for protection during abrasive blast cleaning, when is it OK to take it off?

Wednesday, July 13, 2011


Why is it sometimes useful to adjust the angle of attack (angle of the nozzle in relation to the work piece) when conducting air abrasive blasting?

Thursday, July 7, 2011


In air abrasive blasting operations, how is a moisture separator or filter used?

Tuesday, July 5, 2011


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

Thursday, June 16, 2011


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.

Wednesday, June 1, 2011


Abrasive blast cleaning to remove lead-based paint is governed by what EPA regulation?

Thursday, April 21, 2011


What is the name of the roughened surface created on steel by abrasive blast cleaning?

Monday, November 15, 2010


What is a common name for a sample of the end result of blast cleaning prepared on the metal substrate at a project site with the abrasive used for the project?

Thursday, August 19, 2010


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