Electrical Engineering > EXAM > Journeyman Electrician Practice Test 1_Questions completely solved! (All)

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Journeyman Electrician Practice Test 1_Questions completely solved!

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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 locate... d 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) [Show More]

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