NACE CP2 – EXAM Question And Answers

NACE CP2 – EXAM Question And Answers Latest What is the cause of chalking in epoxy coating - Correct answer-UV or radiation exposure What is polymerization cured coating? - Correct answer-Two parts mixed together just prior to use Examples of non-convertible coatings - Correct answer-1. Chlorinated rubber 2. Vinyl 3. Acrylic 4. Bituminous Non-convertible curing def. - Correct answer-No chemical change during cure cycle Convertible curing def. - Correct answer-Some chemical change during cure cycle What info should be included when sending samples to a lab? - Correct answer-1. Identity of materials 2. Properly packed/labeled samples 3. Chain of custody form 4. Type of analysis that is expected and the concentrations of interest Specialized tests or equipment coating inspectors may encounter - Correct answer-1. AA/AE Atomic Absorption/Emission 2. ISP Induction coupled plasma Spectrometer 3. GLC Gas liquid chromatographs 4. IR, FTIR, FTIR-ATR INfrared spectrophotometers 5. DSC Differential scanning calorimeters What is a cathodic dis-bondment test? - Correct answer-Procedure to determine how easily a coating loosens from a substrate or develops holidays as a result of normal soil potentials Individuals who perform surveys - Correct answer-1. O-Cat or S-cat tech 2. NACE coating specialist 3. NACE Level III 4. Coating Inspector w/field experience 5. Coating manufacturer representative 6. Maintenence engineer with specific plant knowledge. Coating survey steps - Correct answer-1. Understand scope 2. Gather team 3. Develop survey plan 4. Review standards 5. Agree on format 6. Delegate various tasks 7. Eveluate existing coating 8. Delegate various tasks 9. Evaluate existing coating 10. Gather additional info 11. Summarize data 12. Prepare maintenance plans 13. Prepare reports/input data 14. Submit final survey reports. List some of the primary reasons surveys are performed - Correct answer-1. Plan maintenance. 2. Prioritize work 3. Budgetary concerns 4. Determine value of assets 5. Legal compliance Definition of a coating survey - Correct answer-Gather baseline info needed to plan maintenance coating procedures What are faying surfaces and why not galvanize them? - Correct answer-Surfaces that depend on friction to hold galvanizing it may/will reduce friction if they are galvanized Common problems seen during the usual inspections of HD galvanized items - Correct answer-1. Cracking 2. Peeling 3. Bare spots 4. Lumps 5. Blisters 6. Flux inclusions 7. Ash inclusions 8. Dross inclusions Post galvanizing treatments and why - Correct answer-To Remove Thickness: Roll, Wipe, Centrifuge/Air Blast To change properties/To alloy: Annealing Temperature range for galvanizing kettle