AMPP NACE CP2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
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Course
NACE
Institution
NACE
AMPP NACE CP2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED
Nernst Equation
Demonstrates how the metal ion concentration in the electrolyte affects the potential of the electrode
EMF series
The arrangement of elements according to their electrode potential, or their tendency to ...
ampp nace cp2 exam questions and answers with comp
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AMPP NACE CP2 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
Nernst Equation
Demonstrates how the metal ion concentration in the electrolyte affects the potential of
the electrode
EMF series
The arrangement of elements according to their electrode potential, or their tendency to
corrode vs SHE standard hydrogen electrode
Galvanic Series
List of metals and alloys arranged according to their corrosion potentials in a common
electrolyte
EMF (electromotive force)
Driving force for corrosion (voltage difference)
Volt
joule per coulomb where a joule is a unit of energy
Amps (Amperes)
Rate of flow of charge, 1 coulomb per second
Metal ion concentration HIGH
less active the metal will be in that particular electrolyte
Temperature
, Temp ⬆️
Corrosion ⬆️
Temp ⬇️
Corrosion ⬇️
Dezincification
Zinc Corrosion/leaching in brass alloys
Graphitic Corrosion
Iron Corrosion/leaching in cast and ductile iron
Oxygen Concentration
Oxygen⬆️
Corrosion ⬇️
Oxygen ⬇️
Corrosion ⬆️
Salt Concentration
Salt ⬆️
Corrosion ⬆️
Salt⬇️
Corrosion ⬇️
PH
0-14
7 Neutral
0-6 Acidic
8-14 Alkaline
Each unit of PH = 60mv change in potential
Faraday's Law
Weight loss of metal with time and current
Polarization ⬆️
Current....
⬇️
activation polarization
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