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Daily Quiz (13)


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.


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


Ultra high pressure (UHP) waterjetting, using water alone at pressures of 35,000-40,000 psi, is sometimes used for what purpose in coating work?


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


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


What is an alternative to hot potting?


Ultra high pressure (UHP) waterjetting, using water alone at pressures of 35,000-40,000 psi, is sometimes used for what purpose in coating work?


True or false: Ultra-high-pressure (UHP) water jetting is generally ineffective in removing soluble salts from steel substrates.


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


Ultra-high pressure (UHP) water jetting for surface preparation of steel typically operates at what pressure range?


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


True or false: Potable water in a UHP water jetting system is normally of sufficient cleanliness that it will not deposit detrimental contaminants on a steel surface.


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


 
 
   

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