Journeyman Electrician practice test 1
when an electrical circuit tested with ohm meter, a short circuit is indicated by a reading of... correct
answers0
If the panel board rating is 100 amperes, what shall be the overcurrent device rating located in
panelboard? correct answersNEC 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. correct answers1/8 horsepower
what is the resistance of 80 watt light bulb rated at 120 volts? correct answers180 ohms
what is the NEC article for Clarence on a service entry correct answers230.24
voltage drop formula - Single phase correct answers2 * K-factor * Amp * Length / Circular mils or KCmils
of the conductor used
voltage drop formula - 3-phase correct answers1.732 * K-factor * Amp * Length / Circular mils or KCmils
of the conductor used
What is the K-factor for copper and aluminum? correct answersCopper: 12.9
Aluminum : 21.2
How to find the K-factor correct answersChapter 9,table 8
Multiply resistance of conductor per foot by the Circular mils size of the conductor
Where do I find conductor properties correct answersChapter 9, table 8
