PSI Journeyman Online Practice Test

PSI Journeyman Online Practice Test A fitting is a part of a wiring system that is intended primarily to perform which type of function? - mechanical When the disconnecting means of a transformer is located remotely it must be? - lockable If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet? - 6 feet What is an askarel? - a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media In which locations are the installation of flexible metal conduit permitted? - concealed locations Unlisted nonconductive outside plant optical fiber cables shall not be permitted to be installed in which type of raceways? - flexible metal conduit. Where the negative polarity of a dc system does not serve as the connection point for the grounded conductor, which color finish can be used to identify the negative ungrounded conductor? - black Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum feeder conductor size shall have an allowable ampacity not less than the noncontinuous load plus what percentage of the continuous load? - 125% Where an ac system is grounded at any point, the grounded conductors shall be routed with the ungrounded conductors to each service disconnecting means and shall be connected to each disconnecting means grounded conductors terminal or bus for an ac system operating at how many volts? - 1,000 volts or less What is the maximum spacing for supports of 10 AWG copper conductors located in a vertical raceway? - 100 feet What is the maximum overcurrent protection for a 10 AWG copper conductor? - 30 amperes A circuit breaker does not have an interrupter rating shown on it. What is the interrupter rating of this circuit breaker? - 5,000 amperes Dry-type transformers rated over which voltage shall be installed in a vault? - 35,000 volts A panelboard for a mobile home shall be rated not less than which of the following? - 50 amperes An electrical appliance is rated at 1,500 watts, and is connected to 120 volts. What is the resistance associated with this appliance? - 9.6 ohms High-impedance grounded neutral systems in which a grounding impedance limits the ground fault current to a low value shall be permitted for which type of system? - 3-phase ac systems of 480 volts to 1,000 volts Where the positive polarity of a dc system does not serve as the connection for the grounded conductor, which color finish can be used to identify the positive ungrounded conductor? - red Information technology equipment shall be permitted to be connected to a branch circuit by a power-supply cord with a maximum length of how many feet? - 15 feet What is the maximum distance that the emergency controls for an attended self-service motor fuel dispensing facility shall be located from the dispensers? - 100 feet What is the greatest root-mean-square (effective) difference of potential between any two conductors of a circuit defined as? - voltage