NACE CIP 1 EXAM Practice Questions with Correct Answers Latest 2023 | 2024 (Graded)

NACE CIP 1 EXAM Practice Questions with Correct Answers Latest 2023 | 2024 (Graded). Anode - answerthe electrode at which oxidation occurs. electrons flow away from the the anode in the external circuit. corrosion usually occurs and metal ions enter the solution at the anode cathode - answerthe electrode at which reduction occurs. electrons flow towards the cathode in the external ciruit cathodic protection - answerA technique to reduce the corrosion of a metal surface by making that surface the cathode of an electrochemical cell. corrosion - answerthe deterioration of a material, usually a metal, that results from a reaction with its environment. corrosion inhibitor - answerA chemical substance or combination of substances that, when present in the environment, prevents or reduces corrosion. crevice corrosion - answerlocalized corrosion of a metal surface at, or immediately adjacent to, an area that is shielded from the environment and full exposure due to the close proximity of the metal to another surface electrolyte - answerA chemical substance that promotes conduction of an electrical current galvanic series - answerList of metals and alloys arranged according to their corrosion potentials in a given environment (in sea water at 25 celcius) generalized corrosion - answerCorrosion that is distributed more or less uniformly over the surface of a material localized corrosion - answerOccurs at discrete sites and often in areas that are difficult to inspect mill scale - answerThe oxide layer formed during hot fabrication or heat treatment of metals. Passivation - answera layer of oxides formed on the surface of a metal that provides corrosion protection (ex stainless steel) a reduction of the anodic reaction rate of an electrode involved in corrosion, Pitting Corrosion - answerLocalized corrosion of a metal surface that is confined to a small area and takes the form of cavities called pits. Return Path (Metallic Pathway) - answerConnects the anode and cathode, allowing passage of electrons, generated at the anode, to the cathode what are the elements of a corrosion cell - answer1. Anode 2. Cathode 3. Metallic pathway 4. Electrolyte what happens at anode - answeroxidation. metal dissolves into electrolyte what is the function of the electrolyte - answerAllows the passage of ions to connect the corrosion cell what is the function of the metallic pathway - answerAllows the flow of electrons to connect the corrosion cell The general rules of galvanic corrosion are: - answerThe less noble (or more reactive) metal when connected to a more noble (or less reactive metal) will corrode preferentially name at least 5 factors that affect the rate of corrosion - answertemp, humidity, chemical salts, oxygen, pollutants General Corrosion - answerUniform loss of material over an entire surface and general thinning of affected surface corrosion that is distributed more or less uniformly does not cause catastrophic failures Localized Corrosion - answerOccurs at discrete sites and often in areas that are difficult to inspect. concentrated and can cause catastrophic failures what are some of the common tools/methods used for corrosion control - answerinhibitors, design, cathodic protection, protective coatings, splash zone systems, altering the environment Coatings Specification - answerFormal, structured document containing information on a project (scope, terms, schedule, inspection, etc.) Instrument Calibration History Reports - answerReports that normally contain information on how frequently each instrument is to be or has been calibrated. Materials Inventory Reports - answerReports that contain information on the inventory of jobsite materials, and are normally submitted periodically safety data sheets (SDS sheets) - answera form containing data of known substances in a particular product Quality insurance (QA) - answerany systematic process that checks whether a manufactured product or service being developed is meeting specified requirements quality control (QC) - answerProcedure intended to ensure that a manufactured product or performed service meets the requirements of the client or customer quality control technician - answerInspector's role, primarily responsible for observing and reporting the technical aspects of a coating project and its conformance or deviation from the project specifications standards - answera term applied to codes, specs, recommended practices, procedures, classifications, test methods, and guides that provide interchangability and compatability. enhance quality, safety, and economy. published by a standards development group of organization How does NACE define the inspector's role? - answerThe inspector's role is that of a quality control technician responsible for observing and reporting conformance or deviation from the project specification. what is the inspectors responsibility when it comes to safety on a project? - answersafety enforcement is NOT the role of the inspector. However, the inspector is responsible to report any issues that may affect the project Name some tests that may need to be conducted during surface preparation and coating operations. - answersurface temp, relative humidity, dew point, anchor profile, surface cleanliness Name some of the documentation/reports that may be required to be maintained on a coatings project. - answerdaily reports, weekly summary, materials usage reports, manpower and equipment, Non-conformance and conformance reports what the the most important characteristics of a good report - answeraccurate, detailed, objective what is the inspectors primary responsibility and what should he/she not do as it pertains to the specs - answerinspectors role is to ENFORCE specs only. inspector should NOT make any changes to specs what type of information could you expect to find on a product data sheet - answersurface prep and application info, such as recommended surface cleanliness, application methods, and equipment sizes. also environmental parameters like max and min application temps, curing times, recoat windows what type of information could you expect to find on sds sheets - answerhealth, safety, environmental. necessary PPE. physical characteristics emergency responder info dew point - answerThe temperature at which condensation begins to form on a steel surface Infrared thermometer - answerdevices that measure temp, using blackbody radiation emitted from objects Magnetic Surface Contact Thermometer - answerOne of the most common instruments used to determine substrate temps. Psychrometric Chart - answera graph of physical properties of moist air at a constant pressure (often equated to elevation relative to sea level) Psychrometric Tables - answerBooklet used to a determine the relative humidity and dew point temperature of air relative humidity - answerThe percentage of water vapor in the air compared to the maximum amount of water vapor that air can contain at a particular temperature Repeatability - answerThe ability of the instrument to give the same readings under similar ambient and target conditions. sling psychrometer - answertype of psychrometer most used in coating inspection. it is used to measure the ambient air temp to calculate relative humidity and dew point Wind Speed Monitor - answerAn instrument to help decide if conditions are appropriate for coating application projects. identify some of the defects that can be caused by incorrect application temps - answerfailure to cure too fast solvent evaporation poor film formation name some of the effects that wind may have on a coating project - answerblowing abrasives, excessive drift or overspray, accelerating solvent evap, contribution to formation of dry spray what are some of the common errors when using and electronic hygrometmeter - answerfailure to acclimate the instrument to the environment with adequate time explain the process for the use of the sling psychrometer - answerwet or make sure wick wet. sling for 40 sec. continue until 3 consecutive wet readings achieved additives - answerComponents of a coating, typically added in small amounts to perform a specific function adhesion - answerprocess in which dissimilar molecules cling together due to attractive forces can be chemical, mechanical, polar, or all three barrier coatings - answerA coating that (1) has a high resistance to permeation of liquids and/or gases, or (2) is applied over a previously coated surface to prevent damage to the underlying coating during subsequent handling. binder - answernonvolatile portion of the vehicle of a formulated coating material Inhibitive Pigment - answerA pigment that passivates the metal surface by forming a thin, tightly adherent film or by reinforcing and plugging defects in the natural air-formed film. Inorganic Coatings - answerCoatings whose binders are made from non-living things, most commonly based on either silicone or zinc Organic Coating - answercoatings whose binders are made from living or once living things pigment - answerfine, solid particles added during manufacturing of a coating, which are substantually insoluble in the vehicle, used to impart color, corrosion control, or decorative purposes sacrificial coatings - answerCoatings that use a metal that is anodic to steel and corrodes preferentially solvents - answerAdded to coatings to liquefy the binder and allow for application in a productive manner. compostion of a liquid coating - answerpigment and vehicle vehicle- made of resin/binder and solvent solvency power - answerability to dissolve the resin volatility - answergoverns evap rate chemical adhesive bonding - answermost effective Polar adhesion (valence bonding) - answermost common. resin acts as a weak magnet with north and south poles attracting opposite poles on substrate mechanical adhesion - answerinterlocking, contraction list 3 desirable properties of a coating - answer- Chemical resistance - Water resistance - Ease of application - Adhesion to substrate - Cohesive strength - Flexibility and elongation - Impact resistance - abrasion resistance - Temperature resistance - Dielectric strength two broad classifications of a coating are - answerOrganic/Inorganic, Convertible/non-convertible, thermosetting/thermoplastic what are 2 primary components of a liquid applied coating - answervehicle(resin/binder and solvent) and pigment describe 3 methods by which a coating provides corrosion control - answerbarrier, inhibitive, sacrificial what are 3 different ways a coating can adhere to the surface - answerchemical, mechanical, polar, or a combo of all 3 truly beneficial communication takes form of - answerreports Effects of corrosion - answer* Safety * Cost * Appearance Acrylic - answerType of resin polymerized from acrylic acid, methacrylic acid, esters of these acids or acrylonitrile Alkyd - answerType of resin formed by the reaction of polyhydric alcohols and polybasic acids, part of which is derived from saturated or unsaturated oils and fats Convertible Coatings - answerCoatings that cure by one of several polymerization mechanisms. even when solvent evaporation is also involved. also called thermoset- cannot go back chlorinated rubber - answerone of the earliest corrosion resistant coatings; developed in the 1930s, they were widely used in many industries. it contains a large amount of VOC and has been almost eliminated in most parts of the world. noncnvertible curing - answerChemical process of developing the intended properties of a coating or other material over a period of time. epoxy - answerA type of resin formed by the reaction of aliphatic or aromatic polyols (such as bisphenol) with epichlorohydrin and characterized by the presence of reactive oxirane end groups. furan - answerA type of resin formed by the polymerization or polycondensation of furfuryl, furfuryl alcohol, or other compounds containing a furan ring. Latex Emulsions - answerCoatings that can contain a number of different resin particles that are covered with an emulsifier to keep them apart in the liquid stage nonconvertible coatings - answerCoatings that cure by evaporation of the solvent. There is no chemical change to the resins as they transform from the liquid to solid state. also called thermoplastic= can go back or be re solvinized phenol - answeran organic chemical used in a wide variety of manufactured items thermosetting - answerA coating that is formed as a result of a chemical cross-linking reaction (oxidation, polymerization, chemical additive reaction, heat, or a combination of these) convertable Thermoplastic - answerCapable of being softened by heat; may be remolded. nonconvertible the 2 broad classifications for curing mechanisms are - answerconvertible nonconvertible list 2 nonconvertible coating types - answervinyl chlorinated rubber list 3 convertible curing mechanisms - answeroxidation, hydration, co-reaction, fusion list 2 characteristics of oxidation curings - answernon suitable for immersion service non suitable for alkiline(basic) substrates limited DFT per coat list 3 coating types that cure by polymerization - answerepoxys, polyaspartics, polyurethanes, polyureas, polysiloxanies induction time is - answerThe time required by the product data sheet (coatings manufacturer) between mixing the coating and the start of application. what is a main requirement for a hydrolysis coating to cure - answermoisture or humidity Industrial and marine coatings are commonly referred to by: - answergeneric resin/binder type Oil based coatings applied over alkaline surfaces may result in: - answersaponification list 5 of the formal sections usually contained in a good specification - answerscope of work, terms and conditions reference standards and codes safety pre-job conference surface prep coating materials and schedule workmanship sampling