NAFC PERSONAL TRAINING ACTUAL EXAM PAPER 2026 QUESTIONS WITH ANSWERS GRADED A+

NACE CP2 EXAM EXAMINATION TEST 2026
QUESTIONS WITH SOLUTIONS

◉ EMF series. Answer: The arrangement of elements according to their
electrode potential, or their tendency to corrode vs SHE standard
hydrogen electrode


◉ Galvanic Series. Answer: List of metals and alloys arranged
according to their corrosion potentials in a common electrolyte


◉ EMF (electromotive force). Answer: Driving force for corrosion
(voltage difference)


◉ Volt. Answer: joule per coulomb where a joule is a unit of energy


◉ Amps (Amperes). Answer: Rate of flow of charge, 1 coulomb per
second


◉ Metal ion concentration HIGH. Answer: less active the metal will be
in that particular electrolyte


◉ Temperature. Answer: Temp ⬆️ Corrosion ⬆️
Temp ⬇️ Corrosion ⬇️

, ◉ Dezincification. Answer: Zinc Corrosion/leaching in brass alloys


◉ Graphitic Corrosion. Answer: Iron Corrosion/leaching in cast and
ductile iron


◉ Oxygen Concentration. Answer: Oxygen⬆️ Corrosion ⬇️
Oxygen ⬇️ Corrosion ⬆️


◉ Salt Concentration. Answer: Salt ⬆️ Corrosion ⬆️
Salt⬇️ Corrosion ⬇️


◉ PH. Answer: 0-14
7 Neutral
0-6 Acidic
8-14 Alkaline
Each unit of PH = 60mv change in potential


◉ Faraday's Law. Answer: Weight loss of metal with time and current


◉ Polarization ⬆️ Current..... Answer: ⬇️


◉ activation polarization. Answer: Charge transfer reaction
Abundant Reactants