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Electrical Study Guide Hard Copy <br /> (Use DVD for reference materials) <br /> Introduction <br /> he Colorado Coal Mine Electrical candidates <br /> expect to be tested on their knowlege of... <br /> Fundamental Electrical Concepts of AC and DC theory <br /> Schematic or wiring diagrams, circuits, and print <br /> reading, safety, protective devices and multimeters <br /> —OP Law...National Electric Code, 30 CFR Parts 18, 75 and 77 <br /> A score of 80% is required to pass �. <br /> each individual exam section. <br /> AC/DC Theory <br /> Electrical Study Guide 1 <br />