NACE CIP 1 CBT Exam with Questions and Answers, Exams of Engineering

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How is the process of steel corrosion ALWAYS described? ANSWER V electrochemical Based on the galvanic series presented in the NACE CIP Level 1 Manual, which three can be used effectively as galvanic anodes for carbon steel? ANSWERY ¥ zinc, aluminum, magnesium A decrease in temperature will generally cause the corrosion rate to ANSWERVJ¥ decrease The electrolyte is a medium which carries the following type of current? ANSWERV / Tonic Corrosion occurring uniformly across a surface is called ANSWERV¥ general corrosion When a conflict occurs on a coatings project, as the inspector, the preferred first course of action is to ANSWERY ¥ actively listen and endeavor to understand the positions of others A proper coating specification should contain information regarding . sand ANSWERV ¥ surface preparation standards, safety, and locations to be used Is it ever okay to accept a gift from a contractor? ANSWERV / NO What should you do if you find discrepancies between the specification and the coating manufacturer's technical data sheet? ANS WERV V seek written clarification from the owner's representative What are the general components of inspection reports? ANS WERV ¥ - results of inspection tests - location(s) of work - details of preparation and application Inspection reports typically provide sufficient detail permitting the owner to evaluate _____ ANSWERV ¥ - contractor's performance - inspector's performance - job progress - work interruptions As an inspector headed to the job site for the first time, where would you always find instruction regarding appropriate types of PPE? ANSWERV ¥ Safety Data Sheet (SDS), previously called MSDS Materials inventory report should contain which of the following? ANSWERV ¥ - quantity of each component of each material onsite - material batch numbers - date of materials arrival at job site and storage information 3. Mechanical What is the rule for coating work when it comes to Dew Point and Steel Temperature? ANSWERY ¥ Steel Temperature must be 5 degrees less than the Dew Point What characteristics of solvents influence coatings? ANSWERV V - solvency power - volatility The contractor's sling psychrometer gives a different reading than your electric hygrometer. What would you do first as an inspector? ANSWERV ¥ verify calibration of both instruments Which of the following coating are co-reacting? ANS WERV ¥ - polyurethane - epoxy Fusion Bond Epoxy (FBE) is most commonly used to coat ANSWERV V¥ pipe Which coatings may require external moisture to cure? ANSWERV ¥ - single component polyurethane - solvent borne inorganic zinc Amine blush is likely to occur with which type of coating? ANSWERV V epoxy Which type of coating cures the fastest? ANSWERV ¥ Polyurea When an inorganic Zinc Rich primer is applied too heavily a common result is ANSWERV ¥ mud cracking Commonly used primers for steel structures are 2? ANS WERV V - epoxy - inorganic zinc - organic zine Coatings that cure by polymerization are ANSWERV V convertible Water-borne latex coatings cure by a process known as ANSWERV ¥ coalescence On a blast-cleaned surface, ultraviolet ligt can reveal ANSWERVV oil You are an inspector on a project with a sprayed polyurethane coating. The probable safety concern is ANSWERY ¥ isocyanates The requirements of a coatings project are defined by which document? ANSWERV / coating specification A prejob conference is useful for discussions on which of the following? ANSWERV Vv - safety - cleaning - application - schedule - finishing grades of weld You are on a project where Testex Tape is specified to determine surface profile by ASTM D4417 Method C. What is likely to cause reading errors? ANSWERV V - dust on the surface - using incorrect grade of tape Which power tool cleaning standard describes a surface free of all oil, grease, dirt, rust, coatings, mill scale, oxide and other foreign matter yet permits random staining while requiring a minimum profile of 25 microns (1 mil)? ANSWERV ¥ SP 15 When applied to concrete, alkyd coatings will fail prematurely due to ANSWERV JY saponification Which SSPC Vis | rust grade defines a surface covered with both mill scale and rust? ANSWERVV Grade B You are on a job and observe the coating is being applied in an unacceptable manner. As an inspector you should and ANSWERVY ¥ - report to the contractor's supervisor - report to the owner's representative Which standard gives guidelines for how many DFT measurements should be taken in a given area? ANSWERV V SP 2 A pre-job conference should be held ANSWERV V after bids have been submitted and contracts signed What are the goals of a pre-job conference? ANSWERV V - review and discuss the scope of work - discuss lines of communication between parties - discuss and clarify inspector's responsibilities and authority What is one of the inspector's roles at a pre-job conference? ANSWERV V clarify reporting requirements According to ASTM D 4417 Mcthod B-2014, when taking measurements using a profile gauge , at each location make ANSWER¥ ¥ ten (10) readings per location, recording the maximum valuc. Determine mean for all maximum values as the reported profile Daily reports or weekly reports should be written in ANSWERV V pen What can inspection records be used for? ANSWERY¥ V - help in resolving legal or arbitration disputes - assist owners in the evaluation of applicator performance - assist owners in the evaluation of inspector performance - determine total cost of the project The inspector's log book is a personal chronicle of what happened on a daily basis and is usually ANSWERY ¥ retained by the inspector SSPC Technology Guide No.12 states "Surface preparation and coating applications must have a minimum of how man candles / lumens? ANSWERV ¥ 50 foot candles ($38 lumens) One major advantage of conventional spray is __ ANSWER ¥ applicator control When using WFT comb/gauge, the measurment should be taken when? ANSWERV J immediately after the coating is applied When reporting the wet film thickness from a wet film thickness comb/gauge you report which tooth? ANS WERV V the last tooth that has coating on it Solventbourne inorganic zinc primer is being applied with airless spray to a complex bridge with difficult access for application. The contractor is having difficulty with high DFT resulting in mudcracking. What application method might be a good alternative? ANSWERY ¥ conventional spray An advantage of magnetic pull-off DFT banana gauge is that it is ANSWERV¥ intrinsically safe You must take a measurement with a dial-type magnetic pull-off dry film thickness gauge. What is the minimum recommended distance away from an edge that you can reliably take a measurement? ANSWERS V 2.5 em (1 inch) The testing procedure for water soluable ferrous salts is ANSWERY ¥ potassium ferricyannide test A well written specification requires a surface profile depth defined as ANSWERVJV a range of measurements If there is a conflict between the project specification and manufacturer's product data sheet, which do you follow? ANSWERV ¥ Follow the specification What document should be reviewed prior to arriving to a job site to determine if amines or polyamides will be present? ANSWERV V Safety Data Sheet (SDS), formerly MSDS Specification term: Will ANSWERV ¥ The owner is responsible for performing the action Specification term: Should ANSWERV ¥ The contractor is strongly recommended but not required to preform the action Specification term: May ANS WERV ¥ The contractor has open choice on actions Specification term: Shall ANSWER¥ V The contractor is required to perform this action Adding an incorrect solvent to a coating may cause ANSWERYV V non-drying or non- curing If you find chalking on pre-existing coating, what type of coating would you find suspect? ANSWERVV Epoxy Can a holiday detector be used for conductive coating on non-conductive surface? ANSWERV V No According to NACE SP0188, the wetted sponge is moved at a maximum rate of ANSWERY ¥ 1 linear foot per second (30 em) Which standard would you reference if you notice blisters in a variety of shapes and sizes? ANSWERV V ASTM D714 When are NACE international surface preparation standards considered binding? ANSWERV ¥ when specified in the contract documents You are preforming holiday testing on a pipe covered in dew. The reason you are receiving erroneous readings is ANSWERY ¥ telegraphing Which joint NACE/SSPC abrasive blasting standard states that "Random staining shall be limited to no more than 33% of each unit area of surface"? ANSWER JV NACE No. 3/ SSPC-SP 6 Commercial Blast Cleaning Which blasting standard allows for traces of tightly adherent mill scale, rust, and tightly adherent thin coatings up to 10% 7 ANSWERV V NACE No. 8 / SSPC-SP 14 According to NACE No.4/SSPC SP-7, mill scale, rust, and paint are considered adherent if they cannot be removed by ANSWERY ¥ lifting with a dull putty knife ISO 8501 ST-3 is the standard for which of the following? ANSWERV V very thorough hand and/or power tool cleaning Which standard requires a "commercial grade" power tool cleanliness? ANSWER V SP 15 Grounding the pump and fluid hose uscd in airless spray prevents ANSWERV JY static sparking Which standard is achieved if the steel has scattered tightly adherent rust remaining on less than 5% of the unit area? ANS WERV V NACE No. 8 / SSPC-SP 14 Fisheyes (cissing) often resemble crater-like breaks in the coating film that reveal tiny areas of substrate because of ANSWERY ¥ contamination such as grease, oil, or silicone Define corrosion ANS WERV V Deterioration of a substance, usually a metal, or its propertics because of a reaction with the environment What is passivation? ANSWER ¥ The build up of an oxide on the surface of a metal to protect against further corrosion What are the clements ofa corrosion cell? ANSWERV ¥ - anode - cathode - electrolyte - metallic pathway - relatively easy to inspect - does not cause catastrophic failures Localized corrosion is: ANSWERV ¥ Typically Pitting and Crevice Corrosion. It is typically of the most concern as damage is concentrated and loss of integrity or structural failure can result. List some of the common tools/methods used for corrosion control ANSWERY V - design - inhibitors - material selection - cathodic protection - protective coating - splash zone systems - alteration of the environment How does NACE define the inspector's role? ANSWERV ¥ The 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 inspector's responsibility when it comes to safety on a project? ANSWERV 4 Safety enforcement is not the responsibility of the inspector, however, it is his responsibility to report any issues that may affect the project Name some tests that may need to be conducted during surface preparation and coating operations. ANS WERV ¥ Temperature, RH, DP, Anchor Profile, Surface Cleanliness Name some of the documentation/reports that may be required to be maintained on a coatings project. ANSWERV ¥ Daily, weekly summary, materials usage report, manpower and equipment, non-conformance, conformance What are the most important characteristics of a good report? ANSWERV J Objective, Accurate, Detailed What is the inspector's primary responsibility and what should the inspector not do as it pertains to the specification? ANSWERV v - enforce specification - do not make changes What type of information should you expect to find on a Product Data Sheet? ANSWERV ¥ - Surface prep and application info (i.e. recommended surface cleanliness) - Recommended application methods and equipment (tip sizes) - Environmental parameters for application What type of information should you expect to find on a Safety Data Sheet? ANSWERV 4 - Health, Safety and Environmental - PPE required - Physical characteristics - Emergency responder info Difference between QA and QC ANSWERV ¥ QA: any systematic process of checking to see whether a product or service being developed is meeting specific requirements. - continue to "sling" until 3 consecutive readings are achieved Desirable propertics of a coating: ANSWERV ¥ - chemical resistance - water resistance - ease of application - adhesion of substrate - cohesive strength - flexibility and elongation - impact resistance - abrasion resistance - temperature resistance - dielectric resistance Two broad classifications of coating are: ANSWERV V Organic/Inorganic, Convertible/non-convertible, thermosetting/thermoplastic What are the 2 primary components of a liquid applied coating? ANSWERV ¥ - pigment - vehicle (resin or binding) What are the 3 methods by which a coating provides corrosion control? ANSWERV V - barrier - inhibitive - sacrificial What are the 3 different ways a coating can adhere to the surface? ANSWERV V - chemical - mechanical - polar - all three The two broad classifications for curing mechanisms are: ANSWERY ¥ - convertible - non-convertible List 2 non-convertible coating types: ANS WERY ¥ - chlorinated rubber - vinyl List 4 convertible coating curing mechanisms: ANSWERV ¥ - oxidation - co-reaction (polymerization) - hydration - fusion List 3 characteristics of oxidation cure coatings: ANS WERV ¥ - not suitable for immersion service - not suitable for use over alkaline substrates - limited dry film thickness per coat List coating types that cure by polymerization: ANSWERV Vv - epoxies - polyurethanes - polyureas