Daily Quiz (37)


Where is the Waterjet Technology Association headquartered?


Which is considered highly abrasive?


What cleaning technology are workers considering implementing for the restoration at the Notre Dame Cathedral?


True or false: The four SSPC/NACE joint waterjetting standards range from SSPC-SP WJ-1/NACE WJ-1 to SSPC-SP WJ-4/NACE WJ-4, with WJ-1 representing the lowest level of waterjetting and WJ-4 representing the most thorough level of waterjetting.


How many SSPC-NACE joint surface preparation standards are there for waterjetting?


What two associations created the 2011 Color Coding for High Pressure Hoses?


What is the minimum water pressure that constitutes ultra-high-pressure waterjetting?


What is the name of the noted waterjetting industry expert who differentiates between flash rust, which occurs on wetted steel, and rust back, which occurs on dry steel?


True or false: A wet blasting system requires water pressure to provide a cleaning force.


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


True or false: According to an industry expert, waterjet cleaning at 20,000 psi can remove thick elastomeric coatings at a production rate up to six times faster than traditional abrasive blasting.


True or false: The SSPC Visual Standard photos in SSPC-VIS 6 show steel cleaned by UHP water jetting.


True or false: UHP technology has been modified to create specialized firefighting equipment.


True or false: Waterjetting is another name for power washing.


True or false: In a recent article, Lydia Frenzel said that both the waterjetting industry and the paint and coatings industry have been very supportive of waterjetting as a surface preparation activity.


True or false: SSPC/NACE standards on surface preparation by waterjetting are now published on five levels of cleanliness.


True or false: When UHP is used to describe water jetting for surface preparation, it stands for “Upper High Pressure.”


True or false: In a laboratory study of zinc-rich primers for marine environments, recently reported in JPCL, coatings applied over surface preparation by UHP waterjetting, even though it produced no roughness, achieved performance equivalent to, or better than, that achieved by abrasive blasting.


SSPC publishes visual standards for what cleaning method?


The presence of water in new versions of wet abrasive blasting systems increases abrasive breakdown rates, according to a recent JPCL article.


Industry waterjetting standards describe the use of water at what pressures to clean steel?


What is the typical pressure range for waterjetting when it is used to remove coatings and corrosion from structural steel?


True or false: Ultra-high-pressure water jetting at 30,000 psi requires more water to remove coatings from a masonry substrate than does water blasting at 5,000 psi.


What claims are made in a recent JPCL article for using waterjetting and surface-tolerant coatings in newbuilding of ships?


True or false: According to SSPC, wet blasting and water jetting are synonyms.


What is the typical pressure range for water jetting when it is used to remove coatings and corrosion from structural steel?


SSPC and NACE have how many joint standards on waterjet cleaning of metals?


SSPC/NACE standards for waterjet cleaning describe how many levels of cleanliness?


Reference photographs for surface preparation of steel by waterjetting are found in what document?


True or false: UHP waterjetting at 35,000 to 40,000 psi is typically used for surface preparation of stucco before painting.


“Surface Preparation and Cleaning of Metals by Waterjetting Prior to Coating” is a newly revised standard by:


What is the typical pressure range for water jetting when it is used to remove coatings and corrosion from structural steel?


True or false: Ultra-high-pressure water jetting at 30,000 psi typically produces a lower volume of water in removing coatings from a masonry substrate than does pressure washing at 5,000 psi.


True or false: Potable water without additional treatment is often used successfully for UHP water jetting prior to painting.


Which of the following persons has conducted research and published articles in JPCL and elsewhere on flash rusting after water jetting?


Which of the following persons is a noted consultant on waterjetting technology used for surface preparation?


Which of the following statements about ultra-high pressure water jetting is not true?


 
 
   

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