FROSIOQuiz.docx
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FROSIOQuiz.docx
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FROSIOQuiz
1Whatconditionisessentialforgalvanic(bimetallic)corrosiontooccur?
2Howdowerecognizeturbulencecorrosion?
3Whenweusethetermdegraphitationofcastiron,whatkindofcorrosiondowereferto?
4Degrphitationisaspecialformofbimetalliccorrosionandeitherironorthesteelisconsumedthroughdissolution.Whichofthetwosubstanceswillgotodissolution?
5Mostofcoatingsfunctionbythebarrierprincipal.Againstwhatisthecoatingbarrier?
6Doesacoatingheavilypigmentedwithzincphosphateprovidecorrosionprotectionbythegalvanicprinciple?
7Whyisasurfaceprofileimportanttoadhesionofacoatingsystem?
8Howdowechecksurfacesforthepossiblepresenceofwater-solublesubstance?
9WillblastingsteelsurfacestoametalcleanlinessofSa3ensurethatallsolublesubstancesareremovedfromthesurface?
10Whatmustbedonetothesteelsurfacebeforegrinding?
11Whyisasteelsurface,whichhasbeenburnishedtroughrotarywire,brushingnotaverygoodsurfacetoapplypainton?
12Whatisthefunctionofamoistureseparator(分离器)onacompressor?
13Whatistheeffectofincreasingthedistancefromtheblastnozzletothesurface?
14Whichangle(theblastingnozzletosurface)shouldyouselectwhenblastingoffmostpartsofthick,whichiswelladhesionepoxymasticsystem?
15Whatproblemconnectedtothepaintsystem’sservicelifecanyougetifyouuseaninhibitor(抑制剂)inconnectingwithwaterjetting?
16Iswaterjettingsuitedforprimarysurfacepreparation?
Ifyouthickso,pleasestatewhy?
Ifyouthinknot,pleasestatewhy?
17If,afterblastcleaning,flashrustappearsrathermorequicklythanusual,whatcouldindicate?
18WhatisthelowestliquidpressureaccordingtothejointSSPC/NACEstandardthatisdesignatedwaterjetting.
19Whatislaitance?
20Wherecanyoufindinformationsuchasthepotlifeofacoating?
21Whenpaintsarestoredforlongperiodsoftime,whatcomponentsettlestothebottom?
22Howcanyougetrid(去除)ofairthathasbeenmixedintoliquidpaintbeforeapplication?
23Whateffectsdothetemperaturehasonthepotlifeofpaint?
24Whenwouldyouuseamoisture/oiltrapbetweenanaircompressorandthepressurepotinanairsprayunit?
25Whydoespaint“wraparound”tothesidesandthebackofanobjectduringelectrostaticsprayapplication?
26Whatdegreeofmetalcleanlinessisrequiredforthermalsprayingofametalliccoating,andwhatshouldthesurfaceprofilebe?
27Whichmetalsaretheonesmostcommonlyusedinthermalsprayapplication?
28hatisinduction(熟化)time?
29Whateffectwillhotweatherhaveonthepotlifeofachemicalcuringcoating?
30Whatispotlife?
31Whatisawaterbornecoating?
32Whateffectwilllowtemperatureandhighhumidityhaveonthedrying/curingofwaterbornecoating?
33“Waterbornecoatingdoesnotcontainanysolventatall”,Isthisacorrectstatement
34WhateffectwillincreasingthesolidscontentofacoatinghaveontheVOClevelofthesamecoating?
35Whateffectwillthinninghaveonthefilmbuildingpropertiesofacoating?
36WhatdoesSSPC-SP10designate?
37Onaworksiteyoufindthatthewindisblowingsteadily(稳定地)atapaceof15milesperhour.Willthisaffectairlesssprayapplicationofzincethylsilicate?
38Whyshouldthesteeltemperatureduringblastingorpaintapplicationbeatleast3Cabovethedewpoint?
39Howdowedetermineifablastedsteelsurfacehastherequiredmetalcleanlinessornot?
40WhatdoesPSa3designate?
40AndPSt2?
41Whatisthedifferencebetweenaspecificationandprocedure?
42“Reportingisdemandedtomakelifedifficultforcoatingadvisersandensurethattheydonotgotobarsandloosewomen”isthisstatementcorrect?
Pleasejustifyyourviewpointregardlessofwhetherornotyouagreewithstatement?
43Whyisitnecessarytoremovegreasefromasurfacepriortoblastcleaning?
44Whenyouhaveremovedleadcontainingpaintfromsurfacethoughgrindingshouldyouthentakeyouworkclotheshomeandwashthembyhands?
45Whatistheflashpoint?
46Howdowecheckthesurfaceprofileachievedonacleanedsurface?
47Howlongshallyoutwirl(旋转)aslingpsychrometer(干湿温度计)inordertodeterminethewetanddrytemperature?
48Ifyouuseawornnozzleonanairlessspraygun,howwillthisaffectthethicknessofthewetfilmdepositedonthesurfaceascomparedtoanidenticalbutunusednozzle?
49Whatshouldyoudoifyourreceiveashipmentofcoatingswhichhaveexceedtheirpotlife?
50Whatdowemeanbytheoreticalcoverage?
51Whydowespecifyacertaindryfilmthicknessforacoatofpaint?
52Whatcheckwouldyoubelikelytomaketofindthecauseoffisheyesinapaintfilm?
53Whatisthe(main)causeofthebelowpaintfilmdefects?
Wrinkling
Orangepeel
Pinhole
Dryspray
Sagging
Flecking
54Wheredoyoufindtherequirementsforpersonalprotectiongearforsprayapplicationofapolyurethanepaint?
55Ifsomebodyonthejobaccidentallyswallows(咽下)paints,whatdoyoudothen?
56WhatdowemeanwiththetermTLV?
57Whydoesyoucigarettetastesostrangewhenyouaresmokinginanatmospherewhichcontainssolventfumes?
58Whatisthemaximumsizeofdustparticles,whichmayenteryourlungs(肺)ifyoudonotuseafilermask?
59Insideaconfinedspace,wheredosolventvaporscollect?
60Whatprotectivegearwillyouusewhenenteringatank,whichcannotbetestedforoxygenlevelorpresenceoftoxicgases?
61Whichthreefactorsareessentialforgeneralcorrosiontotakeplace?
62WhatistheformulaforcalculatingtheDFTwhenyouknowthewetfilmthicknessandthevolumesolidsofpaint?
63Pleasenamethreefunctionpigmentmayhaveinapaintformulation.
64Pleaselistthreeadvantagesandthreedisadvantagesconnectedtoairlesssprayapplication?
65Pleasegivetworeasonsforapplyingpassivefireprotectiontoasteelstricture.
66WhyisitimpossibletomeasuretheDFTofacoatofprefabricationprimeronsteelplatesthathavebeenblasted?
67a).Whatistheadhesivefailure?
b).Pleaselistreasonforadhesivefailure?
c).Whatiscohesivefailure?
d).Pleaselistreasonforcohesivefailure?
e).Whatmethoddowehavefortestingtheadhesiveandcohesivepropertiedofpaintsystem?
68PleaseexplainhowthestandardISO8501–1isorganized.
69Whatdowecallthatpropertywhichpreventshighbuildcoatingfromsagging?
70Pleasenamethetwomostimportantpigmentsusedinprefabricationprimer.
71Whatdowemeanbythetermdrytotouch?
73.Pleasenameonchemicallycuring,inorganicone-componentpaint.
74.Whydowenotingeneralusemagnesiumanodestoprotecttheunderwaterhullofships?
75.Howmanysquaremeterswillaliterof100%solidspaintappliedtoaDFTof1umcovertheoretically?
76.Whatiselectrolyte?
77.Areelectronsemittedfromtheanodeorfromthecathodeinagalvaniccircuit?
78.Areironionspositively(积极)ornegatively(消极)changed?
79.Whatisthinner?
80.Whatdowemeanbyagenerictype?
81.Whatisthefunctionofaconcretesealercoat?
82.PleaseexplainwhatwemeanbyPH-scale.
83.Pleasenamethreeabrasivesusedforcentrifugalblastcleaningofsteel.
84.Pleasenamethethreeprinciplesfordrying/curingpaint.
85.Pleasenameoneexampleofagenerictypeofpaintformeachofthethreegroupsyouhavelisted84above.
86.Whatdowemeanbyfunctionality(机能)intheresinofachemicalcuringpaint?
87.Pleasenamethreemaincomponentsinapaintformulation.
88.Whatisosmoticblisteringandwhydoesitoccur?
89.Whyisvitaltomovethespraygunparalleltothesubstratewhenapplyingpaintbyspray?
90.Whatproblemswiththepaintfilmcanbeexpectedwhenyouholdthespraygun80cmawayfromtheworkpiece?
91.Inwhichstandardcanwefindinformationaboutandclassificationofcorrosiveenvironment?
92.Howdowecheckifatwocomponentepoxycoatinghascuredsufficientlyforcoercoatingwithapolyurethanetopcoat?
93.Pleasenamethethreeprinciplesbywhichpaintsprotectsteelfromcorrosion.
94.WhenaspecificationdemandametalcleanlinessofminimumSa2.5whatdoesthismean?
Atwhattimeshallthemetalhavethiscleanliness?
95.WhatdoesthestandardISO8502–9cover?
96.Afterhavingcarriedoutanadhesiontestbypull-offmethodyoufindboththedollyandthepulledoffareaonthesteeltobecoveredwithapinkprimer.Whatkindofbreakdoesthissignify?
97.Youspillsomeepoxythinneronthedeckofashipandyouobservethattheexistingcoatingsystembecomeswrinkleonthesurface.Whatcanthistellyouabouttheexitingcoatingsystem?
98.Howwillsolventaffectsyoubrain脑(acute过敏affect)?
99.Whatcontaminationcanyourevealonthesurfacebylightingitupbymeansofanultravioletlightbulb?
QUIZ#1
1.List5dutiesofapaintinspector.
2.WhatisthedifferencebetweenSteelPreparationandSurfacePreparation?
3.Varioustypesofsurfacecontaminationarefrequentlyfoundonsurfacetobepainted.
a).Pleaselistsminimumfiveofthesetypesofcontamination.
b).Howwouldyoucheckasurfacetobeblastedinordertodetermineifthesurfaceiscontaminatedwithoil?
4.Anabrasiveblastcleanedsteelsurfacetobeimmersedinseawateriscontaminatedwithsodiumchloride(NaCl)inexcessof200mg/m2.Thesurfaceisovercoatedwithanepoxymasticcoatingsystem(3x100um).Uponimmersioninwater,blisteringwillstartafteraperiodoftime.
a).Wouldyouassumethattheamountofblisteringwouldbegreaterinfreshwaterthaninsea-water,orwouldyoupresumetheopposite?
Pleasestateyourreasons.
b).Whatdowecallthistypeofblistering?
5.Blastingabrasiv
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