Ampp Nace Cp2 Comprehensive Certification Review

AMPP NACE CP2


Question 1.
Nernst Equation

ANSWER
Demonstrates how the metal ion concentration in the electrolyte affects the potential of the electrode



Question 2.
EMF series

ANSWER
The arrangement of elements according to their electrode potential, or their tendency to corrode vs SHE standard hydrogen electrode



Question 3.
Galvanic Series

ANSWER
List of metals and alloys arranged according to their corrosion potentials in a common electrolyte



Question 4.
EMF (electromotive force)

ANSWER
Driving force for corrosion (voltage difference)



Question 5.
Volt

ANSWER
joule per coulomb where a joule is a unit of energy



Question 6.
Amps (Amperes)

ANSWER
Rate of flow of charge, 1 coulomb per second



Question 7.
Metal ion concentration HIGH

ANSWER
less active the metal will be in that particular electrolyte




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, Question 8.
Temperature

ANSWER
■■ ■■ Temp Corrosion ■■ ■■ Temp Corrosion



Question 9.
Dezincification

ANSWER
Zinc Corrosion/leaching in brass alloys



Question 10.
Graphitic Corrosion

ANSWER
Iron Corrosion/leaching in cast and ductile iron



Question 11.
Oxygen Concentration

ANSWER
■■ ■■ Oxygen Corrosion ■■ ■■ Oxygen Corrosion



Question 12.
Salt Concentration

ANSWER
■■ ■■ Salt Corrosion ■■ ■■ Salt Corrosion



Question 13.
PH

ANSWER
0-14 7 Neutral 0-6 Acidic 8-14 Alkaline Each unit of PH = 60mv change in potential



Question 14.
Faraday's Law

ANSWER
Weight loss of metal with time and current ■■



Question 15.
■■ Polarization Current....

ANSWER




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