PSI Journeyman Online Practice Test | 100 Questions and Answers with complete solution

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