Journeyman Electrician Practice Test 1

Journeyman Electrician Practice Test 1 when an electrical circuit tested with ohm meter, a short circuit is indicated by a reading of... ️0 If the panel board rating is 100 amperes, what shall be the overcurrent device rating located in panelboard? ️NEC 408.36 the overcurrent device rating must not be greater than panel board rating in which is located for stationary small motors rated less than..., the branch circuit overcurrent device may serve as a controller. ️1/8 horsepower what is the resistance of 80 watt light bulb rated at 120 volts? ️180 ohms what is the NEC article for Clarence on a service entry ️230.24 voltage drop formula - Single phase ️2 * K-factor * Amp * Length / Circular mils or KCmils of the conductor used voltage drop formula - 3-phase ️1.732 * K-factor * Amp * Length / Circular mils or KCmils of the conductor used What is the K-factor for copper and aluminum? ️Copper: 12.9 Aluminum : 21.2 How to find the K-factor ️Chapter 9,table 8 Multiply resistance of conductor per foot by the Circular mils size of the conductor Where do I find conductor properties ️Chapter 9, table 8 Where do I find the Full load current for 3 phase, alternating current motor ️430. 250 Motor in a continuous duty application shall have a ampacity of not less then ️125% Where do I find conductor size for its ampacity ️Table 310. 15 (b) (16) Where do I find standard fuse or breaker size in NEC? ️240. 6