wEXAM question and answers latest 2024 VER
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IFIED & GRADED A+
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NACEw2008wStudentwManual!wST
ARTwOFwCHAPTERw1
Corrosionwiswanwelectrochemicalwprocesswinvolving
A) flowwofwprotonswandwelectrons
B) flowwofwneutronswandwions
C) flowwofwprotonswandwions
D) flowwofwelectronswandwions
E) flowwofwresistancewandwresistivityw-wAnswer-wd
Metalwlossworwcorrosionwoccurswatwthe
A) cathode
B) anode
C) electronicwpath
D) metallicwpathw-wAnswer-wb
Whatwarewthewfourwpartswofwthewcorrosionwcell
A) anode,wresistor,welectrolyte,wmetallicwpath
B) anode,wcathode,welectron,welectronicwpath
C) anode,wcathode,welectrolyte,wmetallicwpathw-wAnswer-wc
TrueworwFalsew(tworwf):
Ionswexistwonlywinwthewelectrolyte?w-wAnswer-wt
,Electronswflowwinwawcorrosionwcellwbywwhichwofwthewfollowingwpaths?
A) anodewtowcathodewviawelectrolyte
B) cathodewtowanodewviawelectronicwpath
C) anodewtowcathodewviawelectronicwpathw-wAnswer-wc
DetailedwSurveywFrequencywshouldwbewaccordingwtowDOT
A) oncewperwcalendarwyearwnotwtowexceedwanw15-monthwinterval
B) oncewperwcalenderwyear
C) oncewperwcalenderwyearwnotwtowexceedwanw18-monthwintervalw-wAnswer-wa
InterferencewControlwDrainagewBondwinspectionwfrequencywshouldwbewaccordingwtowDOT
A) oncewperwcalenderwyearwnotwtowexceedwanw15-monthwinterval
B) sixwtimerwperwcalenderwyearwnotwtowexceedw2.5wmonthwintervalsw-wAnswer-wb
RectifierwInspectionwFrequencywshouldwbewaccordingwtowDOT
A) oncewperwcalenderwyearwnotwtowexceedwanw15-monthwinterval
B) sixwtimerwperwcalenderwyearwnotwtowexceedw2.5wmonthwintervalsw-wAnswer-wb
TrueworwFalsew(tworwf)wweatherwconditionswshouldwbewnotedwinwthewdatawsheetsw-wAnswer-wt
Measurementswmustwincludewthewaccuratewrecordingwofwthe:
IwValue
II Polarity
III Units
IV Typewofwreferencewelectrode,wwherewapplicable
,A) I,wII,wIII
B) III,wIV
C) I,wII,wIII,wIVw-wAnswer-wc
TrueworwFalsew(tworwf)
Thewnamewandwserialwnumberswofwallwinstrumentswdoeswnotwhavewtowbewincludedwinwthewd
atawsheetsw-wAnswer-wf
Thewnamewandwserialwnumberswofwallwinstrumentswusedwshouldwbewincludedwinwthewdataws
heets
Solvewthewcircuitwproblemw->
Answers:
R2=w5wohmswI
t=w3A
I1=w1A
V1=2
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V
Atwthewcathodicwsurfacewinwawcorrosionwcell,wthewelectronswfromwthew meetw ionswfromwthewsolution.
A) cathode,whydrogen
B) cathode,wOH-
C) anode,whydrogen
D) anode,wOH-w-wAnswer-wc
Oxidationwofwthewmetalwoccurswatwthew
surfaceswandwreductionwofw ionswoccurswatwthew .
, A) anodic,whydrogen,wcathodes
B) cathode,wOH-,wanodic
C) anodic,wOH-,wcathodes
D) cathode,wanodic,welectrolyte
E) cathode,whydrogen,welectrolytew-wAnswer-wa
Trueworwfalse
Iswoxidationwnecessarilywassociatedwwithwoxygen?w-wAnswer-wf
Currentwflowwinwawcorrosionwcellwflowswwhichwpath:
A) anodewtowmetallicwpathwtowcathode
B) anodewtowelectronicwpathwtowcathode
C) cathodewtowmetallicwtowanode
D) cathodewtowelectrolytewtowanode
E) anodewtowelectrolytewtowcathode
Voltagewiswthewmeasurewofwthewelectrochemicalwdifferencewbetweenwtwowelectrod
eswinwanwelectrolytew-wAnswer-we
iswthewmeasurewofwthewelectrochemicalwdifferencewbetweenwtwowelectrod
eswinwanwelectrolyte
A) current
B) resistance
C) error
D) ohms
E) ohms-cm