NACE CP 2 FINAL PAPER COMPLETE QUESTIONS AND ACCURATE SOLUTIONS STUDY GUIDE

NACE CP 2 FINAL PAPER COMPLETE
QUESTIONS AND ACCURATE SOLUTIONS
STUDY GUIDE

●● Metal loss or corrosion occurs at the


A) cathode
B) anode
C) electronic path
D) metallic path
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
Answer: c


●● True or False (t or f):

,Ions exist only in the electrolyte?
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
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-
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
Answer: a


●● True or false


Is oxidation necessarily associated with oxygen?
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
electrodes
in an electrolyte
Answer: e


●● _____ is the measure of the electrochemical difference between two
electrodes
in an electrolyte


A) current
B) resistance
C) error
D) ohms
E) ohms-cm
F) voltage
Answer: f


●● The ________
represents the reversible work to move a unit charge from the electrode
surface
through the solution to the reference electrode


A) current potential