NACE CP2 – EXAM QUESTIONS WITH 100- COMPLETE SOLUTIONS.pdf

NACE CP2 – EXAM QUESTIONS WITH 100-
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COMPLETE SOLUTIONS
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NACE./2008./Student./Manual!
START./OF./CHAPTER./1
Corrosion./is./an./electrochemical./process./involving


A)./flow./of./protons./and./electrons./
B)./flow./of./neutrons./and./ions
C)./flow./of./protons./and./ions
D)./flow./of./electrons./and./ions

E)./flow./of./resistance./and./resistivity./-./correct./answer./✅✅d


Metal./loss./or./corrosion./occurs./at./the./


A)./cathode
B)./anode
C)./electronic./path

D)./metallic./path./-./correct./answer./✅✅b


What./are./the./four./parts./of./the./corrosion./cell


A)./anode,./resistor,./electrolyte,./metallic./path
B)./anode,./cathode,./electron,./electronic./path

,C)./anode,./cathode,./electrolyte,./metallic./path./-./correct./answer./✅✅c


True./or./False./(t./or./f):


Ions./exist./only./in./the./electrolyte?./-./correct./answer./✅✅t


Electrons./flow./in./a./corrosion./cell./by./which./of./the./following./paths?


A)./anode./to./cathode./via./electrolyte
B)./cathode./to./anode./via./electronic./path

C)./anode./to./cathode./via./electronic./path./-./correct./answer./✅✅c


At./the./cathodic./surface./in./a./corrosion./cell,./the./electrons./from./the./____./meet./_
___./ions./from./the./solution.


A)./cathode,./hydrogen
B)./cathode,./OH-
C)./anode,./hydrogen

D)./anode,./OH-./-./correct./answer./✅✅c


Oxidation./of./the./metal./occurs./at./the./____
surfaces./and./reduction./of./____./ions./occurs./at./the./____.


A)./anodic,./hydrogen,./cathodes

,B)./cathode,./OH-,./anodic
C)./anodic,./OH-,./cathodes
D)./cathode,./anodic,./electrolyte

E)./cathode,./hydrogen,./electrolyte./-./correct./answer./✅✅a


True./or./false


Is./oxidation./necessarily./associated./with./oxygen?./-./correct./answer./✅✅f


Current./flow./in./a./corrosion./cell./flows./which./path:


A)./anode./to./metallic./path./to./cathode
B)./anode./to./electronic./path./to./cathode
C)./cathode./to./metallic./to./anode
D)./cathode./to./electrolyte./to./anode
E)./anode./to./electrolyte./to./cathode




Voltage./is./the./measure./of./the./electrochemical./difference./between./two./electrod
es

in./an./electrolyte./-./correct./answer./✅✅e


_____./is./the./measure./of./the./electrochemical./difference./between./two./electrode
s
in./an./electrolyte

, A)./current
B)./resistance
C)./error
D)./ohms
E)./ohms-cm

F)./voltage./-./correct./answer./✅✅f


The./________
represents./the./reversible./work./to./move./a./unit./charge./from./the./electrode./surfac
e
through./the./solution./to./the./reference./electrode


A)./current./potential
B)./electrode./potential
C)./resistance./potential
D)./ohms./potential

E)./Faraday./potential./-./correct./answer./✅✅b


Metals./occur./in./nature./in./the./form./of./various./chemical./compounds./referred./to./
as
___


A)./ores
B)./anodic./metals