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Daily Quiz (37)


How long can bare wood be exposed to the outdoor atmosphere before it requires special surface preparation, according to the USDA Forest Products Laboratory (FPL)?


True or false: In a galvanic cell consisting of two dissimilar metals or alloys in the presence of an electrolyte, the more active of the metals corrodes at a greater rate, while the corrosion rate of the less active metal is greatly reduced.


True or false: Fisheyes, or small quasi-circular areas of substrate exposed through a coating immediately after application, are usually caused by an excessively hot substrate.


True or false: Citric acid is sometimes used to etch concrete before application of coatings.


True or false: Most coating specialists say that stripe coating the edges of steel substrates is necessary even when edge-retention primers are used.


What is the term used to describe the development of small, knob-like mounds of corrosion products on the surface of a substrate?


True or false: Titanium zinc is used as an inhibitive pigment in primers for steel.


True or false: A surface layer of concrete weakened by interconnected microcracks is called laitance.


True or false: Burnished polished concrete requires less maintenance than bonded-abrasive polished concrete.


True or false: Exposed structural steel in San Diego and Los Angeles airport construction projects completed in 2013 was coated with zinc-rich/epoxy/fluoropolymer coating systems.


True or false: A D+D blogger points out that a building’s structural steel will begin to lose strength in a fire when it is heated to just over 570 degrees Fahrenheit.


True or false: Titanium zinc is sometimes used as a cladding material on buildings.


Mineral paints used on masonry substrates use what type of binders?


What is the general name for the materials designed to resist liquid water that has penetrated the exterior cladding of a building?


According to many coating manufacturers, what is the recommended upper limit of moisture content in a wood substrate before it can be painted?


In protective coatings work the word “embedment” refers to what, according to SSPC?


True or false: The adhesion of a coating to a steel substrate can be achieved by both mechanical attachment and chemical bonding.


True or false: Rubber replica templates from the Portland Cement Association can be used to judge the degree of profile on concrete substrates after surface preparation.


True or false: The adhesion of a coating to a steel substrate depends entirely upon the mechanical attachment or hooking of the coating to the profile of the steel.


White rust appears on which of the following substrates?


True or false: Substrates low in tensile strength, such as EIFS, require low-modulus sealants.


What is a term for a systematic effort to determine the condition of metal and other substrates in an industrial plant?


Most coatings applied to concrete substrates provide what type of protection?


What happens to the condition of a steel substrate when waterjet cleaning is used to remove rust or existing coatings?


True or false: By matching both the color of the matrix and the aggregates in a concrete substrate, repair materials can be created that will match the appearance of the original substrate.


True or false: The ASTM Plastic Sheet Method (D 4263) for detecting moisture in concrete substrates can be used both on concrete floor slabs and on vertical walls.


True or false: A recent Reflective Roof Coatings Institute study found that the type of substrate to which a reflective roof coating is applied has a profound effect on the solar reflective properties of the coating over time.


True or False? Powder coatings are not used on architectural aluminum.


True or False? Anodizing of architectural aluminum is normally completed in a single-step process that produces both an oxide film and the desired color.


The risk of saponification dictates that alkyds should not be used on what substrate type?


EIMA represents professionals who deal with what type of system or substrate?


Which of the following is an abrasive media used in a blasting system on delicate substrates?


What is a common term used to describe the survey of coatings and substrates in an industrial plant to create a maintenance painting plan and budget?


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


True or false: In protective coatings work, "smut" refers to the metallic fines that cling to a steel substrate after it is cleaned with metallic abrasive.


Which of the following can be a driving force for water absorption through a paint film to a steel substrate?


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?


 
 
   

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