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NACE CP2 STUDENT MANUAL CHAPTER 1: CORROSION THEORY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED $10.99
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NACE CP2 STUDENT MANUAL CHAPTER 1: CORROSION THEORY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
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NACE CP2 STUDENT MANUAL CHAPTER 1: CORROSION THEORY EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED Oxidation of the metal occurs at the ____ surfaces and reduction of ____ ions occurs at the ____. A) anodic, hydrogen, cathode B) cathode, OH-, anodic C) anodic, OH-, cathode D)...

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  • October 31, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nace cp2 student manual chapter 1 corrosion theor

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NACE CP2 STUDENT MANUAL CHAPTER 1: CORROSION

THEORY EXAM QUESTIONS AND ANSWERS WITH COMPLETE

SOLUTIONS VERIFIED


Oxidation of the metal occurs at the ____

surfaces and reduction of ____ ions occurs at the ____.



A) anodic, hydrogen, cathode

B) cathode, OH-, anodic

C) anodic, OH-, cathode

D) cathode, anodic, electrolyte

E) cathode, hydrogen, electrolyte

a

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-

c

,The elements of a corrosion cell include which of the following? (select all that

apply)



A) anode

B) cathode

C) electrolyte

D) metallic/electronic path

a, b, c, d

Faraday's law calculates the



A) potential of a metal in seawater

B) potential of a metal in the metal ion solution

C) metal lost based on the resistance

D) metal lost due to current over time

d

Reference electrodes include which of the following? (select all that apply)



A) copper-copper sulfate

B) hydrogen

C) calomel

D) silver-silver chloride

a, b, c, d

,The stability of a copper-copper sulfate reference electrode does not vary with



A) temperature

B) exposure to sunlight

C) an unsaturated solution of copper ions

D) a saturated solution of copper ions

d

If a potential of -484 mV is measured with respect to a hydrogen reference

electrode, what is the potential with respect to a copper-copper sulfate electrode?



A) -168 mVcse

B) -316 mVcse

C) -800 mVcse

D) -1116 mVcse

c



E2 = -484 mV + ( 0 - 316 )

E2 = -484 mV + -316

E2 = -800 mV



E2 = E1 + (e1 - e2)

E1 = original measurement

E2 = desired conversion

, e1 = reference value of original half cell

e2 = reference value of conversion half cell

If a digital meter displays a negative value while measuring a voltage across a

resistor, it indicates that the:



A) current is flowing from the positive to the negative meter connection

B) current is flowing from the negative to the positive meter connection

C) meter is reading incorrectly

D) meter scale should be changed

b

The unit used to measure the electrochemical difference between two metals in

an electrolyte is which of the following:



A) amperes

B) volts

C) ohms

D) siemens

b

If lead, copper, steel, and aluminium are connected together in water, which will

corrode the most?



A) lead

B) copper

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