NACE CP 2 Quiz 1 Questions & Answers 100% Verified(RATED A+)

The elements of a corrosion cell include which of the following? 1. Anode 2. Cathode 3. Electrolyte 4. Electronic Path - ANSWER-All of the Above 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 - ANSWER-D. metal Lost due to current over time An environment where cathodic protection is NOT effective is A. liquid B. soil C. atmospherically exposed surface D. steel in concrete - ANSWER-C. atmospherically exposed surface Reference electrodes include which of the following? 1. Copper-copper sulfate 2. Hydrogen 3. Calomel 4. Silver-silver chloride - ANSWER-All of the above 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 - ANSWER-D. a saturated solution of copper ions The cathodic protection criteria for steel includes which of the following? 1. A potential of -850 mVCSE or more negative with current applied after IR drop is considered 2. A polarized potential of -850 mVCSE or more negative 3. polarization of 100 mV or greater 4. A polarized potential of -790 mV AgAgCl or more negative - ANSWER-All of the above If a potential of -484 mV is measured with respect to a hydrogen electrode, what is a the potential to copper-copper sulfate? A. -168 mVCSE B. -316 mVCSE C. -800 mVCSE D. -1116 mVCSE - ANSWER-C. -800 mVCSE E1 + (CF1) = E2 + (CF2)