NACE CP2 exam questions and answers with solutions 2025

NACE 2025 Student Manual! START OF CHAPTER 1 Corrosion is an electrochemical process involving A) flow of protons and electrons B) flow of neutrons and ions C) flow of protons and ions D) flow of electrons and ions E) flow of resistance and resistivity - ANSWER d 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