PSI Journeyman Online Practice Test ALL SOLUTION LATEST EDITION 2023/24 GUARANTEED GRADE A+

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 A motor controller disconnecting means shall be permitted to be out of sight of the controller for motor circuits over how many volts? 1,000 volts, nominal The following measurements are taken on a 3-phase load: power used is 11,250 watts, 208 volts applied, and current is 35 amperes per phase leg. What is the power factor of the load? 89% Alternating-current systems of less than 50 volts shall be grounded where supplied by transformers, if the transformer supply system exceeds which of the following? 150 volts to ground In a fire alarm system, single conductors shall not be smaller than? 18 AWG What is the maximum voltage drop for any branch circuit, separately derived system, operating at 120 volts line-to-line and 60 volts to ground, serving sensitive electronic equipment? 1.5% In which application is the installation of UF cable permitted? in photovoltaic systems Equipment grounding conductors of bare or insulated aluminum or copper-clad aluminum shall not be terminated within how many inches of the earth? 18 inches Where practicable, what is the minimum amount of separation that shall be maintained between communications wires and cables on buildings and lightning conductors? 6 feet The combined cross-sectional area of all conductors or cables shall not exceed what percentage of the interior cross sectional area of the underfloor raceway? 40% What is the minimum rating for a standard lampholder that shall be used for circuits and equipment operating at less than 50 volts? 660 watts Lamp tie wires, mounting screws, clips, and decorative bands on glass shall not be required to be grounded if spaced at least how far from the lamp terminals? 1 1/2 inches Disregarding exceptions, what is the minimum size copper-clad aluminum underground service conductor permitted? 6 AWG Where is AC cable NOT permitted to be used? in damp locations How far shall the work space extend from the grade, floor, or platform for equipment that is 60 inches in height? 78 inches Overcurrent protection for feeders and branch circuits supplying electric vehicle supply equipment shall be sized for continuous duty and shall have a rating of not less than what percentage of the maximum load of the electric vehicle supply equipment? 125% What is the maximum weight of a luminaire that can be supported by the screw shell of a lampholder? 6 pounds All employees must receive training on working in confined and enclosed spaces when working in open pits that are greater than how many feet in depth? 4 feet Plug fuses shall be permitted to be used in circuits supplied by a system having a grounded neutral point where the line-to-neutral voltage does NOT exceed which of the following? 150 volts What is the minimum size of the aluminum equipment grounding conductor where the overcurrent protection ahead of a branch circuit or feeder is sized at 600 amperes? 2/0 What is the ampere load of a 3-hp single-phase motor at 240 volts with an efficentcy rating of 83%? 11.23 amperes Where the rated input current of the autotransformer is less than 9 amperes, what is the maximum permitted overcurrent device rating? 167% of the input current Type MV cable shall be permitted for use on power systems rated up to and including... 35,000 volts, nominal. Unless otherwise provided, MC cables shall be secured at intervals not exceeding which of the following? 6 feet What clearance must be maintained when overhead spans of open conductors or open multiconductor cables of not over 1,000 volts, nominal, pass over residential property? 12 feet CONTINUED..