Daily Quiz (253)


A __ paint was recently applied at the largest school system in South Texas, Northside Independent School District.


A research team from the Indian Institute of Technology Madras recently developed technology that can improve what type of coating industry tool?


A research team from the Institute of Oceanology of the Chinese Academy of Sciences recently developed a new mechanical robust ___ coating that can be applied via spray coating.


German automobile factory and motorcycle manufacturer BMW is teaming up with global chemical company BASF to create a new sustainable paint made from what organic material?


Researchers from the Tokyo Institute of Technology are utilizing machine learning to design what type of films?


True or False: The 2022 JPCL Equipment Buying Guide lists equipment and related supplies for protective and marine coating work from more than 240 manufacturers, distributors and rental companies.


True or False: A Pittsburgh-based company recently released an autonomous coating system that can apply coatings to commercial buildings.


True or False: Paint knife is another name for a draw down bar.


The second generation of Gema’s Dynamic Contour Detection system uses “smart” scanning technology to improve the process for what kind of spray coating?


True or False: 29 CFR 1910.146 is the OSHA standard that regulates work in permit-required confined spaces, including the use of plural-component spray application equipment.


The S.S. Badger, a ferry in Ludington, Michigan, was recently drydocked and repainted, using how many gallons of paint?


True or False: A mobile intelligent paint robot will be used to complete all painting work for a luxury high-rise residential project in Downtown Dubai.


Metalizing, or thermal spray was first introduced in the early 1900s by this Swiss inventor:


Google recently announced it was awarding $3 million in grants to build an open-source tool that does what?


Featured in the July 2021 issued of JPCL, about how many gallons of paint were used for the coatings rehabilitation project at the Cowans Ford Hydroelectric Station in North Carolina?


What special mixing equipment is required for zinc-rich paints?


The U.S. Department of Energy awarded computational materials design specialist QuesTek Innovations LLC (Evanston, Illinois) $1.1 million in Small Business Innovation Research Phase II funding for research in:


True or false: Hardness pencils are used in protective coatings work to measure of coating hardness as determined by the coating's resistance to scratching by pencil leads of known hardness.


True or false: SSPC: The Society for Protective Coatings offers a jointly issued standard on thermal spraying with the American Association of State Highway Transportation Officials and the National Steel Bridge Alliance.


True or false: Thermal spraying is a group of processes where the thermal spray feedstock (aluminum, zinc or a combination of alloys developed in the form of a wire or powder) is heated, atomized and propelled by a conveying gas stream and deposited to form a thermal spray metallic coating (TSC) on the cleaned steel.


True or false: Both metal-fume fever and white-metal fever are terms used to describe a condition where fumes generated from aluminum and other metals and their alloys during thermal spraying are unpleasant to smell and could cause flu-like symptoms for hours or days.


A recent “Thermal Spray Coating Application” standard was issued by what organization?


In an air abrasive blasting system, the blast hose ID should be at least how many times the size of the nozzle orifice to achieve productive blasting results?


True or false: Typical ranges of electrostatic transfer efficiency are anywhere from 60-80%, depending on the target type and other factors, according to one estimate.


What is a PATTI?


True or false: Infrared radiation thermal imaging can be used to monitor coating application only if the coating being applied is thermosetting.


True or false: Paint brush bristles derived from mongooses can hold more paint than those acquired from hogs.


How many courses does SSPC offer to train applicators to apply high and 100% solids coatings?


True or false: Plural-component spray equipment can typically handle material ratios from 1:1 to 10:1.


True or false: Both cementitious and fibrous spray-applied, fire-resistant materials can contain Portland cement binders.


True or false: SIPP is the acronym for a robotic spray process to reline pipeline interiors.


True or false: Magnetic induction is the principle of operation of gages used to measure the thickness of thermal spray aluminum when the base material is carbon steel only.


True or false: High volume, low pressure (HVLP) spraying has greater transfer efficiency than electrostatic spraying.


True or false: Paint knife is another name for a draw down bar.


True or False: Power tools used on concrete to remove contaminants and create a profile are typically the impact type.


Examining the drip pattern from a burst of paint sprayed onto a vertical surface with an airless spray gun will reveal what possible problem?


What is considered to be the main advantage of an HVLP spray system?


In coating work, what are fines?


The “spreading rate of a coating to a completely flat surface, assuming no losses in handling” defines what term?


True or false: One possible cause of dry spray when using airless equipment is excessive spray pressure.


True or false: In certain exposure conditions, sealers and/or topcoats may be required over thermal spray coatings.


True or false: A moisture content of 15%, as measured by a moisture meter, is generally considered the upper limit for successful painting of wood.


What organization publishes a maintenance repainting manual?


What coating specialist wrote a critique on PaintSquare of the ISO standard for assessing acceptable levels of dust on surfaces prepared for painting?


True or false: For spot repair of coatings, the selection of abrasive blasting as the surface preparation method is questionable.


What organization publishes the document, “Standard Terminology for Paint, Related Coatings, Materials and Applications"?


True or false: The qualifications of commercial painting contractors can be certified by SSPC.


True or false: With electrostatic painting, waterborne coatings are conductive and tend to carry a charge that can cause issues with “grounding out” when they are sprayed.


The cliché about “location, location, location” being the three most important things in assessing the value of a house is mirrored by what similar phrase offered by a PaintSquare coating specialist on the three most important considerations in painting a bridge?


True or false: A large public school system wanting to paint its buildings could specify SSPC-QP 8 in order to acquire an SSPC-certified contractor for the work.


True or false: Typical ranges of electrostatic transfer efficiency are anywhere from 85 to 95 percent, depending on the target type and other factors, according to an industry expert.


True or false: Infrared curing of coatings can have a lower operating cost than convection curing.


True or false: One paint consultant advocates for the use of a hammer to check for compliance with SSPC-SP 6 after the paint has been applied.


How is a water ring used?


What is the name of the abrasive blast nozzle with internal restriction at the center to increase abrasive speed and produce a more uniform blast pattern?


True or false: Air and airless spray produce about the same amount of overspray.


True or false: SSPC’s specification for the application of thermal spray coatings is issued jointly with NACE and the Zinc Institute.


What paint application method produces the most overspray?


True or false: At very high temperatures (higher than 90 degrees Fahrenheit), the top of applied coatings may skin over or cure too quickly, trapping air or solvent bubbles.


In paint application by conventional air spraying, what causes dry spray?


True or false: In spray-applying zinc-rich paints, the zinc dust particles will not separate from the binder once they have been mixed together thoroughly.


True or false: When the relative humidity is high, curing times for waterborne coatings will be shorter than what is stated as normal on the application data sheet.


True or false: HVLP spraying is used to apply thermoplastic powder.


True or false: NACE publishes a standard that gives durability grades of low, medium and high for paint systems in various environments and levels of surface preparation.


What term describes the degree of drying of paint “when no loosening, detachment, wrinkling or other distortion of the film occurs when the thumb is borne downward while simultaneously turning the thumb through an angle of 90 degrees in the plane of the film ... and maximum pressure is exerted by the arm”?


True or false: A bristle blaster is another term for a roto peen power tool.


Which of the following is not the subject of an SSPC Qualification Procedure for application contractors?


True or false: “Angle of attack” in coating work applies to the pattern of application of thermal spray materials.


True or false: Both hogs and badgers produce material used in paint brushes.


What was the first organization to initiate painter competitions, in which teams of three painters competed against one another in demonstrating their craft by coating a large steel panel with attached angles and pipe sections?


True or false: When assessing the moisture content of wood with an electronic moisture meter, a moisture level of 30 percent is generally considered the upper limit for successful painting.


True or false: Flame spraying, metallizing and plasma spraying are all forms of thermal spraying.


True or false: Polar solvents can be used to make paint sufficiently conductive for electrostatic spraying.


True or false: Size used on plaster and metal has the same composition.


What term is defined as the percentage of coating solids actually applied to the substrate by spray application?


True or false: According to protective coating specialist Lee Wilson, increasing topcoat thickness when intermediate coat thickness is too low in order to achieve the specified total system thickness is not acceptable as good painting practice.


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


True or false: Thermoplastic powder can be applied by thermal spray.


What organization offers training and certification as a thermal spray coatings inspector?


What kind of binder is used with thermal spray aluminum?


True or false: Conventional air spray application of coatings causes more overspray than airless spray.


True or false: Respirable hazardous materials may be produced in some thermal spraying operations.


True or false: Service centers for steel rail tank cars are not well suited to conducting repairs on interior linings, according to a JPCL article.


What is another name for induction time?


True or false: A drawdown bar is used to apply wallpaper.


True or false: Tack-free and dry-to-touch times after coating application are not the same.


True or false: According to a recent JPCL article, freshly applied thermal spray aluminum is close in appearance to steel newly blasted to white metal.


True or false: Unheated material introduced into a plural component spray system can shock the system, creating cold patches in the pumps and hoses and potentially throwing the system off ratio.


True or false: A Maryland State Highway Administration study of coatings’ field performance confirmed that two-coat bridge painting systems are more cost-effective than the standard three-coat, zinc-epoxy-urethane system.


According to ASTM terminology, what is the name given to the problem caused by the greater shear of a brush used around the perimeter of a wall or ceiling compared to the lower shear of a roller used on the rest of the wall or ceiling?


What is the name used for the period of time when a coating remains workable as it is applied to smooth the film and avoid excessive build at laps.


According to ASTM, what application method produces edge-tracking?


What is an alternative to hot potting?


Where are centrifugal wheels used in coatings work?


In a study of shop-applied topcoats reported in JPCL, which generic type achieved a hardened film that resisted handling damage at lower temperatures (50 degrees Fahrenheit) and higher humidity (75 percent RH) in the shortest amount of time?


True or false: Some intumescent coating types may require up to five coats and 25 days from initial application to completion of the finish coat at 50 degrees Fahrenheit.


True or false: A D+D In Depth article argues that the risks of moisture-related, single-wythe CMU wall problems based on the initial selection of the coating and number of repaints cannot be predicted.


True or false: When a cold-weather coating is used to coat steel in temperatures below freezing, it is not necessary for the surface temperature of the steel to be at least 5 degrees Fahrenheit above the dew point temperature.


A drawdown bar and a dolly have what in common?


Examining the drip pattern from a burst of paint sprayed onto a vertical surface with an airless spray gun will reveal what possible problem?


True or false: Airless spraying produces less overspray than conventional air spraying.


What do MPCAC and PLURAL have in common?


Which of the following formulating or application strategies can increase the hiding of a coating?


True or false: Products for exterior wood are sometimes formulated with high pigment concentrations to provide hiding power and to help seal the exposed wood microstructure.


What organization has validated a Wall Coating Applicator Training Program?


True or false: MPCAC and PLURAL are two kinds of plural spray equipment.


Which of the following is bad advice about spraying zinc-rich coatings?


What is the name of a rectangular metal tool used to deposit a specified thickness of wet coating on a test panel or other substrate?


True or false: Among the performance properties of polyureas, according to a JPCL article by Mike O’Donoghue and Vijay Datta, tolerance of low-temperature application is the weakest.


True or false: Waterborne coatings require special spray guns when applied by electrostatic spray.


In addition to trisodium phosphate, used for cleaning in painting operations, what other material has the acronym TSP?


Cutter bundles are used on what devices?


SSPC recently entered into an agreement with what organization to provide global applicator training?


Which of the following is not a term used for application of metallic wire, metallic powder or thermoplastic powder?


True or false: A new concrete surface finished with a power trowel would tend to have low porosity.


How is film build normally achieved during the thermal spray process?


True or false: Conventional air spraying tends to cause more overspray than airless spraying.


True or false: Thermoplastic powders cannot be applied by thermal spraying.


In coating work, what is transfer efficiency?


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


True or false: A hypodermic pressure gage is used to check abrasive flow rates in a blast hose.


True or false: According to a recent Basic Training column in JPCL, heat is the operator’s best friend in spraying with plural component spray equipment.


What animal provides the bristle for China bristle paint brushes?


True or false: In an air abrasive blasting system, the blast hose ID should be at least 3-4 times the size of the nozzle orifice to achieve productive blasting results.


True or False: Weldability is very significant to the formulation of inorganic zinc preconstruction primers used in ship building.


What is the ideal pressure at the nozzle of an air abrasive blast system to achieve maximum productivity in the cleaning of steel?


In general, when is it better to use impact rather than rotary power tools?


Rotating flaps with hard metallic tips are components of what piece of surface preparation equipment?


What does HVLP stand for?


What type of gages are used to measure the dry film thickness of coatings on concrete?


What special mixing equipment is required for zinc-rich paint?


What is the main reason that 100 percent solids coatings are normally applied by plural component spraying?


What kind of instruments test for coating continuity?


True or false: To be effective, a seal coat over a thermal-sprayed zinc coating must be applied after a significant amount of natural oxidation has occurred.


A drawdown bar and a dolly have what in common?


True or false: Non-sparking tools can produce sparks.


What is a unique feature of a plural-component spray system?


A bush hammer is normally used for what purpose?


Plastic shims are used to calibrate what quality control instruments?


A Schmidt hammer would normally be used to test for what property?


True or false: The most widely used common name for a wet film thickness gauge is “squirrel gauge.”


What type of product is Emmaqua?


True or false: Arc-spray application of thermal-sprayed metal coatings is conducted only in the shop.


What type of instrument is used to check the continuity of protective coatings on steel?


What may be the result of excessive pressure in airless spray painting?


How is a water ring used?


What technology is employed in instruments measuring the moisture content of concrete?


True or false: A Tooke gage is an ultrasonic instrument used to measure the dry film thickness of coatings.


True or false: A needle gage is used to measure water pressure in a UHP water jetting system.


True or false: According to a JPCL article, trowel-applied mortar systems for concrete floors can include walnut shell aggregates.


A PATTI instrument would be used to test what coating attribute?


Some types of spray painting equipment achieve higher transfer efficiency than others. What is transfer efficiency?


A chopper gun would most likely be used for what application?


What is an alternative to hot potting?


How can paints be made conductive for electrostatic spraying?


SSPC’s specification for the application of thermal spray coatings is issued jointly with what other organization(s)?


Which of the following is a synonym for a draw down bar?


Some types of spray painting equipment achieve higher transfer efficiency than others. What is transfer efficiency?


Certain machine guns, like the old Thompson sub-machine gun, are called chopper guns. What is a chopper gun in coatings work?


What is a common name for the safety cut-out device at the blast nozzle of an abrasive blast system, which is connected to a pressure-relief valve on the blast pot?


Which of the following instruments would most likely be used to assess the condition of a building?


True or false: A nozzle orifice gage is used to measure the opening in a airless spray tip.


Stormer and Brookfield are examples of what types of instruments?


What is the name of the tool that has flexible flaps attached to a rotating hub with tungsten carbide cutters at the ends of the flaps?


True or false: Spray techniques for closed-cell SPF normally differ from those for open-cell SPF.


True or False: SSPC and NACE jointly publish a standard on applicator training and certification for commercial painters.


Wind can cause or contribute to what problem of paint application?


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


True or false: Airless spray painting systems sometimes operate at pressures 100 times greater than pressures used in conventional air spray systems.


Which of the following terms is generally considered synonymous with the term “trade sales paint”?


In general, when is it better to use impact power tools (needle gun, roto peen) rather than rotary tools (wire brush, etc.)?


True or False: Dry-sprayed paint films, as occurs in high wind conditions, are rough, low in gloss, and cohesively inadequate.


True or False: Film build is normally achieved in application of thermal-sprayed zinc coatings by slowing the travel speed of the spray gun.


True or False: Relative humidity at the surface of bridge steel may be different from the relative humidity in the atmosphere away from the steel surface.


True or False: It is important to keep the spray pot or container below the level of the work when applying zinc-rich paint.


Rotating flaps with hard metallic tips are components of what piece of surface preparation equipment?


True or False: SSPC has a standard on using plural-component spray equipment.


True or False: When measuring dry film coating thickness in accordance with SSPC-PA 2, the required number of “area measurements” is based on the size of the structure.


True or False: Field-applied fluoropolymers cannot meet VOC levels of 100 grams per liter.


True or False: A seal coat over thermal-sprayed zinc will perform better if application is delayed until at least 30 days have elapsed so that natural oxidation can form on the zinc.


What is the relationship between a fog coat and a mist coat of paint?


What are the most commonly used materials for thermal spraying when it is used for corrosion protection?


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


True or false? Among all spray application techniques, plural-component spraying produces the most paint overspray.


What does HVLP stand for?


Why do some product data sheets for coatings require that the substrate surface temperature be at least 5° F higher than the dew point temperature?


Which of the following is bad advice about spraying zinc-rich coatings?


True or False? To be effective, a seal coat over a thermal-sprayed zinc coating must be applied after a significant amount of natural oxidation has occurred.


What does “theoretical coverage” mean?


How is film build normally achieved during the thermal spraying of metallic coatings?


A stationary centrifugal wheel blast machine is normally used to clean what kind of substrate?


Why should the surface temperature of steel be at least 5 degrees higher than the dew point temperature before you blast-clean or paint?


What kind of spray application of a liquid coating to a metallic substrate is most commonly associated with the “wrap-around effect”?


What is the alpha-numeric designation of the recently published SSPC standard describing recommended best practice in applying plural component polyureas and polyurethanes?


True or false: A pot tender is a generic name for an agitator in a spray pot used to apply zinc-rich coatings.


True or false: In air abrasive blast cleaning of steel, a venture nozzle generates a deeper blast profile than a straight bore nozzle with the same diameter opening.


How are the zinc particles in a zinc-rich coating kept in suspension during spray application?


True or false: Thermal spraying of zinc is sometimes used for corrosion control on steel substrates.


What is the alphanumeric designation of the SSPC Paint Application Standard for measuring the thickness of dry coatings on concrete?


Which of the following is an environmentally benign material sometimes used to etch concrete before application of coatings?


SSPC’s Coating Application Specialist Standard, ACS-1, is issued jointly with what other organization?


True or false: Fire-resistant, intumescent coatings for steel are applied in one to three coats.


True or false: An SSPC Committee is working on a standard for qualifying and certifying commercial coating applicators.


Which of the following application methods achieves the greatest transfer efficiency?


Which of the following factors is a cause of dry spray in conventional air spray operations?


Which of the following statements does not describe an advantage of a plural-component spray system?


Power tools such as power wire brushes can burnish or polish a steel surface. Why is this a problem?


In what kind of system is a nozzle orifice gage used?


True or false: A rebound hammer is a power tool used for surface preparation.


Why is back rolling often required following airless spraying of coatings over concrete blocks (CMUs)?


True or false: A needle gun is used to apply metal roofing materials.


True or false: Thermal spray coatings of aluminum, zinc, and their alloys for corrosion protection of steel are very surface-tolerant.


True or false: Painting over weld spatter on steel is an accepted practice.


What piece of equipment for coating work has flexible flaps with tungsten carbide shot embedded into them?


True or false: Centrifugal wheel blast machines are used both in shops and in the field.


True or false: To assure successful adhesion, more paint has to be applied to weathered wood so that it penetrates the soft, damaged layer and adheres to the sound substrate beneath.


What animal provides the bristle for China bristle paint brushes?


True or false: For non-conductive coatings up to 20 mils thick applied to conductive substrates, a high-voltage holiday detector is normally used to detect pinholes and other discontinuities.


An air-wash separator would be found in what type of equipment?


The SSPC/NACE/AWS specification for thermal-sprayed zinc in a marine service environment requires what degree of blast cleaning?


True or false: Conventional air spraying produces less overspray than airless spraying.


For electrostatic spraying to work effectively, the item to be coated must be in what condition?


What are the most commonly used thermal spraying materials for corrosion protection of steel?


Where are the resin and catalyst or curing agent mixed in a plural component spray system?


True or false: Back brushing and back rolling are application techniques with the opposite effects.


True or false: Conventional air spraying creates more overspray than airless spraying does.


What is the most commonly used material for thermal spraying when it is used for corrosion protection?


Power tools, such as power wire brushes, can burnish or polish a steel surface. What is the main problem with this?


When spraying zinc rich coatings, why is it useful to have the spray pot or container positioned at or above the level of the work?


What is one typical duty of an inspector prior to the application of a primer?


Sharp edges on steel present special challenges to the coating applicator for what reason?


What application technique is likely to cause the most overspray?


In general, when is it better to use impact (needle gun, roto peen) rather than rotary (wire brush, coated abrasive) power tools?


What is involved in “zone painting” of a structure?


Windy conditions during spray application of coatings would be most likely to cause which of the following paint defects?


How can paint be made conductive for electrostatic spraying?


What check should you make first to find the cause of fish eyes in a coating film applied by air spray?


What is the most unique feature of a plural-component spray system?


What hazard is unique to airless spray systems?


How is film build normally achieved during the thermal spray process?


When airless spray painting, use a tip with a larger orifice for:


In conventional air spraying, which of the following spray techniques is wrong?


Which one of the following application methods has the highest range of transfer efficiency?


Some types of spray painting equipment achieve higher transfer efficiency than others. What is transfer efficiency?


True or false: To be effective, a seal coat over a thermal-sprayed zinc coating must be applied after a significant amount of natural oxidation has occurred.


A needle scaler is what type of power tool?


A wet sponge holiday detector uses what level of voltage?


In what kind of spray application do the coating particles tend to wrap around edges of the substrate?


True or false: Sealing of a porous aluminum or zinc thermal spray coating can be accomplished naturally through oxidation.


True or false: On lattice-type electric transmission towers, airless sprayers are often the main paint application tool.


True or false: Thermoplastic powders can be applied by thermal spray.


What advantage does a high-volume, low-pressure spray system have?


Which of the following are thermal spray coatings?


 
 
   

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