Master Electrician exam questions and complete correct answers 2024

According to the National Electrical Code, the minimum size TW copper conductor for a 5 HP, 3 phase, 230 volt, squirrel cage motor started at full voltage shall not be less than # ___ AWG. - correct answer 14 How many AWG #12 THHN conductors are allowed in a 1" RMC nipple? - correct answer 35 wires How many AWG #12 THHN conductors are allowed in a 1" RMC? - correct answer 26 #12 THHN conductors The circular mil area of a #18 AWG would be ___ CMILS for solid or stranded. - correct answer 1620 According to Table 8 of the NEC and assuming solid uncoated copper conductor; cross-sectional area of 10,380 CM; resistance of 12.6 Ω/circular mill-foot (KF), calculate the conductors resistance at 75 degrees C. ("R" is resistance in Ohms, "L" is the length of the conductor. Use the formula: R=KL/CM.) - correct answer 1.2 Ohm/1000 ft. Using the information in the National Electrical Code, table 8, calculate the total resistance of 495' of uncoated, 18 AWG, stranded, copper. - correct answer 3.85 to 3.93 ohms