SSPC C-1 Final Exam Questions and Answers 100% Solved correctly

Which metal would never be used in sacrificial anodes for cathodic protection of steel? - AnswerPlatinum Which surface preparation method is used to create a surface profile? - Answer-Abrasive blasting What is the minimum level of surface cleanliness required when applying an inorganic zinc rich coating? - Answer-SSPC-SP 3 What is the purpose of the lockout/tagout procedure? - Answer-To prevent injury to personnel from equipment Why is it best not to overmix a coating before application? - Answer-To minimize entrapment of air bubbles in the coating On which steel surface would a 3-coat silicone alkyd system be most appropriate? - Answer-Exterior of a water tank in a mild environment Which item below can best be used to determine if chalking of a coating is too great for good topcoat adhesion? - Answer-A dark felt cloth What chemical action takes place at the anode during corrosion? - Answer-Loss of metal Which invisible contaminant can affect coating performance if not removed by cleaning of the steel before coating application? - Answer-Soluble Salts Prior to coating application, the substrate and ambient temperatures must be: - Answer-At least 5° above the dew point and not falling Which is true of a venturi nozzle as compared to a straight-bore nozzle used for abrasive blast cleaning? - Answer-It provides a more uniform blast patternIn which coating application method can the overspray be collected and recycled? - Answer-Powder spray Which coating provides a type of cathodic protection to steel? - Answer-Zinc-rich coatings Which coating would perform best on the interior of a storage tank for aviation fuel? - Answer-Epoxy polyamide Which U.S. organization addresses industrial hazards to personnel at job sites? - Answer-OSHA Which pair of ingredients comprises a coating's vehicle? - Answer-Binder and solvent Which coating system can be used to repair the bottom of a deteriorated steel tank used for storing chemicals? - Answer-Fiberglass-reinforced vinyl ester Theoretical spreading rate is defined as: - Answer-The spreading rate with 0% loss of material Why is a stripe coat a vital part of the coating process? - Answer-It allows the applicator to cover edges/welds and other hard to reach places prior to and after topcoating When a coating's viscosity increases, what happens to the consistency of the material? - Answer-The material becomes thicker Define mill scale. - Answer-An iron oxide film formed during hot-rolling of steel Which instrument can best be used to determine the ambient dew point? - Answer-Psychrometer Define pot life. - Answer-Period of time after mixing of components during which a coating can successfully be appliedAt which location are you most likely to find an oxygen deficiency? - Answer-In tanks and other confined spaces Define bleeding in coatings: - Answer-Color migration from underlying substrate or coating through new coating Which statement is always true about corrosion? - Answer-Anodic and cathodic areas are required What coating defect is commonly associated with solvent entrapment? - Answer-Blistering Why would a calcium chloride test be used on a concrete floor that is to be coated? - Answer-To measure the rate of moisture migration through the concrete What type of bristle is best when applying solvent-based coatings by brush? - Answer-Natural/China bristle For which service are coal tar coatings most appropriate - Answer-Underground fuel pipe exterior Which is a safety device for airless spraying? - Answer-A trigger lock What is the most common cause of osmotic blistering of coatings on cleaned steel surfaces? - AnswerSoluble salt contamination on the steel surface What is the most common mechanism of corrosion control by coatings? - Answer-Barrier protection Why do exterior coatings chalk? - Answer-Deterioration of binder by sunlight Why is it important to detect defects in coatings early when they are being applied? - Answer-Corrective action is easier and less costly then Which coating is most susceptible to mudcracking when applied too thickly? - Answer-Inorganic zinc-richWhat is a written, legal document, usually part of a contract, which precisely describes an item of work that is to be accomplished? - Answer-Specification What destructive instrument may best be used for measuring dry film thickness of a coating on a concrete surface? - Answer-Tooke gage Why are pre-construction primers most often spray applied in a shop? - Answer-To minimize the necessary field abrasive blasting To which pipe areas are heat-shrink sleeves typically applied? - Answer-Welded areas Which material may be used to control the corrosion of steel reinforcing bars in concrete? - AnswerEpoxy powder coatings How does micaceous iron oxide pigment in coatings provide corrosion protection to steel? - Answer-By reducing ultraviolet light deterioration of coatings Why is it necessary to apply a sealer to concrete? - Answer-To reduce the porosity What surface defect is associated with two components epoxies, caused by contact with moisture during the curing process? - Answer-Amine blush Which is true of metallizing? - Answer-The metallizing is usually sealed for longer service Which coating application method has the greatest production rate? - Answer-Airless spray Which item can best be used to determine profile height of an abrasive blasted steel surface? - AnswerDeformable replica tape Which substrate is best prepared per SSPC-SP 16? - Answer-AluminumWhich cleaning method best removes soluble salts from contaminated surfaces - Answer-Waterjetting Which abrasive is a natural mineral product? - Answer-Garnet Which surface preparation standard defines power tool cleaning? - Answer-SSPC-SP 3 Which SSPC surface preparation standard requires a stated minimum surface profile? - Answer-SSPC-SP 11 Which coating requires straining to remove clumps? - Answer-Inorganic zinc-rich Define laitance. - Answer-A loose layer of cement on concrete Which description best defines outgassing associated with concrete? - Answer-Air that is expelled from concrete porosity during rise in temperature Define induction time: - Answer-Period of time after mixing of components and before application to permit reaction of components to proceed Which is a non-destructive instrument for measuring dry film thicknesses of coatings on concrete surfaces? - Answer-Ultrasonic gage Which coating is the most tolerant to outdoor exposure? - Answer-Waterborne acrylic Which coating has good resistance to the sun's ultraviolet light? - Answer-Aliphatic polyurethane What is the most important advantage of plural component coating application systems over other coating spray systems? - Answer-Very short pot-life materials may be appliedWhich term best describes a fiberglass-reinforced polyester product? - Answer-A composite Why are oil-based coatings incompatible with concrete? - Answer-Concrete has a high alkalinity