Electrical NCCER-Part 1 Practice Questions and Correct Answers

Nonmetallic-sheathed cable is used in a residential wiring system. Rough in.. trim out..testing.. and troubleshooting are phases of residential wiring. Installers & maintenance personnel are the 2 groups industrial electricians are split in to. Apprenticeship program requires how many hours per year? 2000 hours (AC VOLTAGE TAG COLORS) I. Class 00 (BEIGE tag) 500v (AC VOLTAGE TAG COLORS). Class 0 (RED tag 1000v (AC VOLTAGE TAG COLORS). Class 1 (WHITE tag) 7500v (AC VOLTAGE TAG COLORS). Class 2 (YELLOW tag) 17000v (AC VOLTAGE TAG COLORS). Class 3 (GREEN tag) 26500v (AC VOLTAGE TAG COLORS). Class 4 (ORANGE tag) 36000v Replacing fuses is an important use of a hot stick. Asbestos was banned in 1978 you need to assume any building constructed before, 1980 has asbestos in it. 1 Horsepower= watts? 746 watts An electrical circuit at minimum contains a source, load, & switch. (Ex: battery, lamp,switch) Proton is the type of sub-atom particle with what type of charge? a positive charge. EMF (electromotive) is another term used for voltage a.k.a "E" (in metric system) Electric charge is measured in coulombs. Explain Ohms Law I=E/R The current in a circuit is equal to the voltage applied to the circuit divided by the resistance of the circuit.