PSI Journeyman Online Practice Test Questions and Answers 2023 with complete solution

PSI Journeyman Online Practice Test Questions and Answers 2023 with complete solution A fitting is a part of a wiring system that is intended primarily to perform which type of function? Ans mechanical When the disconnecting means of a transformer is located remotely it must be? Ans lockable If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet? Ans 6 feet What is an askarel? Ans a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media In which locations are the installation of flexible metal conduit permitted? Ans concealed locations Unlisted nonconductive outside plant optical fiber cables shall not be permitted to be installed in which type of raceways? Ans 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? Ans 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? Ans 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? Ans 1,000 volts or less What is the maximum spacing for supports of 10 AWG copper conductors located in a vertical raceway? Ans 100 feet What is the maximum overcurrent protection for a 10 AWG copper conductor? Ans 30 amperes A circuit breaker does not have an interrupter rating shown on it. What is the interrupter rating of this circuit breaker? Ans 5,000 amperes Dry-type transformers rated over which voltage shall be installed in a vault? Ans 35,000 volts A panelboard for a mobile home shall be rated not less than which of the following? Ans 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? Ans 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? Ans 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? Ans redInformation 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? Ans 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? Ans 100 feet What is the greatest root-mean-square (effective) difference of potential between any two conductors of a circuit defined as? Ans voltage A motor controller disconnecting means shall be permitted to be out of sight of the controller for motor circuits over how many volts? Ans 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? Ans 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? Ans 150 volts to ground In a fire alarm system, single conductors shall not be smaller than? Ans 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? Ans 1.5% In which application is the installation of UF cable permitted? Ans 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? Ans 18 inchesWhere practicable, what is the minimum amount of separation that shall be maintained between communications wires and cables on buildings and lightning conductors? Ans 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? Ans 40% What is the minimum rating for a standard lampholder that shall be used for circuits and equipment operating at less than 50 volts? Ans 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? Ans 1 1/2 inches Disregarding exceptions, what is the minimum size copper-clad aluminum underground service conductor permitted? Ans 6 AWG Where is AC cable NOT permitted to be used? Ans in damp locations How far shall the work space extend from the grade, floor, or platform for equipment that is 60 inches in height? Ans 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? Ans 125% What is the maximum weight of a luminaire that can be supported by the screw shell of a lampholder? Ans 6 poundsAll 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? Ans 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? Ans 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? Ans 2/0 What is the ampere load of a 3-hp single-phase motor at 240 volts with an efficentcy rating of 83%? Ans 11.23 amperes Where the rated input current of the autotransformer is less than 9 amperes, what is the maximum permitted overcurrent device rating? Ans 167% of the input current Type MV cable shall be permitted for use on power systems rated up to and including... Ans 35,000 volts, nominal. Unless otherwise provided, MC cables shall be secured at intervals not exceeding which of the following? Ans 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? Ans 12 feet In which application is red brass rigid metal conduit permitted? Ans direct burial Which type of electrical equipment is used to change voltage level or waveform, or both, of electrical energy? Ans inverterA resistor has the following colored bands (in order): orange, red, brown, silver. What is the resistor value? Ans 320 Ohms (10% tolerance) The service disconnecting means may be installed in all of the following EXCEPT... Ans the bathroom Receptacles in residential units shall be installed such that no point measured horizontally along the floor line of any wall space is more than how far from a receptacle outlet? Ans 6 feet A minimum of how many threads needs to be engaged if machine screws are used to fasten bonding jumpers? Ans 2 The base of a 24-foot non-self-supporting ladder shall be placed approximately how far from the vertical structure upon which is leaning? Ans 6 feet Temporary electric power and lighting installations for holiday decorative lighting shall be permitted for a period not to exceed how many days? Ans 90 days For permanently connected appliances, the branch-circuit overcurrent device shall be permitted to serve as the disconnecting means for appliances rated at not over Ans 300 volt-amperes or 1/8 hp. Where a main bonding jumper or a system bonding jumper is a screw only, the screw shall be identified with which color finish? Ans green The storage batteries used as a source of power for emergency systems shall be of suitable rating and capacity to supply and maintain the total load for a minimum of how long? Ans 90 minutesA motor with a code letter of D shall have what range of kilowatt-amperes per horsepower with locked rotor? Ans 4.00 to 4.49 What is the minimum size solid conductor permitted to be installed in a raceway? Ans 8 AWG The portion of a grounding electrode conductor in a dc system that is connected to a rod or pipe shall NOT be required to be larger than which of the following? Ans 6 AWG copper A written emergency action plan is required for all employers with how many employees? Ans 11 employees or more Signs and outline lighting system equipment for wet location use, other than listed watertight type, shall be weatherproof and have drain holes not larger than... Ans 1/2 inch What is the approximate power loss for a conductor in a 208-volt circuit that has a 5% voltage drop with a current flow of 15 amperes? Ans 156 watts What is the minimum size grounding equipment conductor required for a photovoltaic system? Ans 14 AWG One horsepower is equal to how many watts? Ans 746 Rod-type grounding electrodes of stainless steel shall have a diameter of not less than which of the following? Ans 5/8 inch Which type of cable shall be marked by means of a printed tag attached to the coil, reel, or carton? Ans Type MIWhere are flat cable assemblies permitted to be installed? Ans in exposed locations The length of the pull box shall not be less than how many times the outside diameter, over sheath, of the largest shielded or lead-covered conductor or cable entering the box? Ans 48 times What is the minimum size EMT conduit required for three 14 AWG, six 12 AWG, and three 8 AWG conductors? All wires are THHN solid wire. Ans 1 inch If the branch circuit supplies a single non-motor-operated appliance, the rating of overcurrent protection shall not exceed 20 amperes if the overcurrent protection rating is not marked and the appliance is rated at... Ans 13.3 amperes or less Approximately how many kilowatts are used by a three-phase, 480-volt ac motor that draws a current of 52 amperes and has a power factor rating of 88%? Ans 38kW When intermediate members (such as balusters or additional rails) are used on scaffolding, they shall NOT be more than how many inches apart? Ans 19 inches For other than a totally enclosed switchboard or switchgear, what is the minimum amount of space that shall be provided between the top of an unshielded switchboard or switchgear and any combustible ceiling? Ans 36 inches An appliance for a residence is rated at 30 amperes. It is continuously loaded and is not motoroperated. What is the minimum branch circuit rating that is required if the branch circuit device is not listed for continuous loading? Ans 40 amperes Snap switches directly connected to aluminum conductors shall be listed and marked CO/ALR if rated at... Ans 20 amperes or lessWhat is the maximum number of 12 AWG conductors that can be used in a 4" x 1-1/2" square box? Ans 9 A continuous load is a load where the maximum current is expected to continue for at least how long? Ans 3 hours Which type of service-entrance conductors can be contained in a cable tray? Ans MI cable Who is responsible for providing head protective gear to employees who are working in areas where there is a possible danger of head injury from impact, falling or flying objects, or from electrical shock and burns? Ans employer Which is best defined as an unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non-current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth? Ans ground fault Where an electrical vault is required or specified for conductors and equipment operating at over 600 volts, nominal, the floor when in contact directly with earth shall be constructed in what manner? Ans minimum of 4-inch-thick concrete What is the minimum size copper conductor permitted for use for a 6,000 volt service? Ans 6 AWG When installed in the same cable tray, cables operating at over 600 volts shall be of which type? Ans MC When combination surface metallic raceways are used for both signaling and for lighting and power circuits, the different systems shall be run in separate compartments. Which is NOT an acceptable means of identifying by the interior finish of the different systems? Ans taggingA 3-hp pump is installed 220 feet from the 220-volt main service. What is the voltage drop when using 12 AWG solid wire? Ans 8.8 volts What is the recommended maximum total voltage drop on both feeders and branch circuits to the farthest outlet? Ans 5% What is the maximum permitted length of the branch-circuit wiring from the branch-circuit overcurrent device to the first outlet for a 12 AWG conductor with a listed outlet branch-circuit type arc-fault circuit interrupter installed at the first outlet box? Ans 70 feet An appliance draws 40 amperes when used on a circuit. A bad splice is discovered on the line at the appliance on one of the phase conductors. The splice has a measured resistance of 0.5 ohms. How much power is lost at the splice? Ans 800 watts Which type of service-entrance cable has a flame-resistant and moisture resistant covering? Ans Type SE How many quarter bends are allowed in IMT between pull points? Ans 4 Conductors that supply a single motor used in a continuous duty application shall have an ampacity of not less than what percentage of the motor full-load current rating? Ans 125% What part of a bulk storage plant is classified as Class 2, Zone 2? Ans drainage ditches, separators, and impounding basins What is the minimum fire rating for electrical vaults housing electrical equipment over 600 volts, nominal? Ans 3 hoursFor pool equipment, the disconnecting means for all ungrounded conductors shall be readily accessible and within sight from its equipment and shall be located a minimum of how many feet horizontally from the inside walls of a pool? Ans 5 feet The ampacity of the conductors from the generator terminals to the first distribution device(s) containing overcurrent protection shall not be less than what percentage of the nameplate current rating? Ans 115% The conductors, including splices and taps, shall not fill the wireway to more than what percentage of its area? Ans 75% A feeder supplies a continuous lighting load of 45 amperes and a single motor load of 30 amperes. What is the ampere rating of the feeder? Ans 94 amperes Lifelines for fall protection shall have a minimum breaking strength of how many pounds? Ans 5,400 Disregarding exceptions, overcurrent devices shall be readily accessible and shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than how high above the floor or working platform? Ans 6 feet, 7 inches What is the approximate power consumed by a 15 kw heat strip rated 230 volt that is connected to a 208 volt circuit? Ans 12 kw For electric space heating cables, which color of lead wire is used to indicate a circuit voltage of 240 volt, nominal? Ans red