Journeyman Electrician Exam Practice Guide 2025-2026, Exams of Electrical Engineering

Download Journeyman Electrician Exam Practice Guide 2025-2026 and more Exams Electrical Engineering in PDF only on Docsity!

Journeyman Electrician Exam 2025- 2026 Practice Guide

Light is converted into electricity - The rotating part of a DC motor is known as - Armature The proper way of measuring and unknown voltage with a multi-tester is to - CORRECT tart measuring at the highest range A SS SS SS ac Paper What has the lowest dielectric strength - A form of air switch in which the moving element is a hinged blade wedge between stationary contact blades when closed is a what switch - CORRECT ANSWER-Knife at the point of canta The voltage per tum of the primary of a transformer is the vollage per turn of the I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I | R-The same as I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I A SS SS SS ac ac Acircuit with a lagging current means the circuit is what? - CORRECT ANSWER-Inductive Ifa conductor has a resistance of 0.2 ohms and the link is doubled, the resistance becomes what? ANSWER-0.4 ohms Insulating materials have the function of - CORRECT ANSWER-Preventing a short circuit between conducting wires source and a conductor A device or cquipment which is suspended from overhead cither by means of a flexible cord carrying current, or otherwise is a? - R-Pendant Ina series circuit with unequal resistances - CORRECT. the highest voltage The kilowatt hour meter can be classified as what kind of instrument? - Recording Transformer cores are built up from laminations rather than from solid metal so that what happens? - CORRECT: An instrument used to check the motor shaft alignment is called what? - CORR! Dial indicator A SS SS SS ac In AC circuits, the ratio of KW/kVA represents what factor? - CORRECT. Capacitance increases with? - ( -Larger plate area and smaller distance between plates A tool used by a lineman to remove insulation from a large cable is called? - CORRECT ANSWER-Electricians knife Ina parallel circuit, the total resistance is? - CORRECT ANSWER-Smaller than the smallest resistance in the combination Insulator Hysteresis losses are caused by? - CORRECT: coil with an iron core In magnetic and electric circuit analogy, magnetic flux is the analog of what? - ANSWER-Current, A SS SS SS Enclosed means, surrounded by what which will prevent persons from accidentally contacting energized parts - CORRECT. ANSWER-Piezoelectricity Raceways shall be provided with this to compensate for thermal expansion and contraction - -Expansion Joints An alternation is what? - CORRECT ANSWER-One-half cyele What is the fimelion of a ncon glow test ER-Delermines if the circuit is alive, determines polarity of DC circuits, and determines if circuit is AC or DC What chapter in the code is mobile homes referred to? - CORR’ A SS SS SS ac Never approach a victim of an electrical injury until you - CORRECT. power is turned off Shall What is nol one of the considerations thal must be evaluated in judging equipment? - CORRECT To incroase the range of an AC Ammctor whal. is mosi. commonly used? - CORRECT ANSWER- A current transformer Give a test lamp lights when placed in series with a condenser and a suitable source of DC, it is a good indication that the condenser is - CORRECT ANSWER-Short-circuited To transmit power economically over considerable distances. it is necessary that the voltage T A SS SS SS ac ac Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or general purpose receptacles installed that are readily accessible? - CORRECT ANSWER-Two When branch-circuit conductors are contained inside a ballast compartment and they are within 3 inches of the ballast, the conductors shall have a temperature rating of at LEAST a) 105 degrees C b) 90 degrees C ¢) 75 degrees C d) 60 degrees C - CORRECT ANSWER-B: 90 degrees C Ref: 410.58 Class____ locations are those that are hazardous because of the presence of easily ignitible fibers or materials producing combustible flyings. a)l b) I ¢) II div ORRECT ANSWER-C: III Ref: 500.4(D} Class locations are those in which flammable gases, flammable liquid produced vapors, or CORRECT. ANSWER- combustible liquid produced vapors are present that are explodable. - Class 1 A SS SS SS Conductors with _ Insulation have a greater ampacity when used ina dry location (1.23) 332.30 states that type MI cable shall be supported at intervals of at least how many [ect? - CORRECT ANSWER-Six feet What table sizes equipment grounding conductors for specific over current devices? - ANSWER-250.122 Wye is another term for what kind of systems? - What is the equation for voltage drop? - CORRECT ANSWER-VD=2KID/CM A SS SS SS ac ac corrosion resistant compound 119.26 (E) discusses the space equal to the width and depth of the equipment and extending from the floor to a height of six fect above the equipment or to the structural cciling. Whal. is this For stationary motors of 2 hp or less, and 300 volts or less, a general use switch having an ampere rating of _ the fle rating of the motor is permitted to be used - ANSWER-2 times 240.22 states no over current device shall be connected in series with any conductors - CORRECT ANSWER-The overcurrent device op and is designed so no pole can operate independently. ens all conductors of the circuit, including the 314.72(E) states that a suitable cover to cover an underground box is considered to weigh what ORRECT. ANS and shall have what wrilicn on iv? Keep out” When an industrial control panel is supplied from a3 phase, 4 wire, delta connected electrical RE phase Where in the codebook would you find info about the minimum clearance for conductors passing ANSWER-225.18(4) Outside branch circuits and feeders over a public driveway? - CORRE A SS SS SS For Class 1 Divisions 1 and 2 locations, the conduit seal shall not exceed % fill of the cross sectional area - ( Hazardous locations Table 300.5 shows what for different types of wiring methods or circuits based on the location? - For show windows, atleast one 125 volt single phase 15 or 20 amp rated receptacle shall be installed within 18 inches from the top of the show window for every _ feet of the horizontal window area? - CORRECT ANSWER-12 feet motors + 100% of noncont non motor load + 125% of cont non motor load In general, when current carrying conductors are installed in parallel, the paralleled conductors ANSWER-The same size in circular mil in each phase shall be what two things? - C area and have the same insulation type Any motors that supply a motor used in a short time, intermittent, or varying duty application are permiltcd to have an ampacily of not less than the percentage values on lable _and called what? - CORR ER-430.22(E) Duty Cyele Service For branch circuit, short circuit and ground fault protection of motors, what table gives percentages of fle for sizing of fuses and breakers? - CORRECT. ANSWER-430.52 A SS SS SS ac ac Where the NEC specifies that one equipment should be “in sight from" “within sight from" or “within sight of" another equipment, it is to be visible and not more than how many feet? - 0 feet. Mandatory rules of the NEC are those that identify actions that are specifically required or Neon sign equipment having an open circuit voltage exceeding how many volts shall NOT be RI ANSWER-1000 valts taken Lo supply utilizalion equipment Disregarding exceptions, the NEC mandates the MINIMUM size overhead service conductors Lo Receptacles incorporating an isolated grounding conductor connection intended for the reduction of electrical noise, shall be identified by a/an located on the face of the ANSWER-red dot For the purpose of determining conductor fill in a device box, the NEC mandates a switch to be counted as equal Lo two (2) conductors. The volume allowance for the two (2) conductors. The size wire in the box Where in the NEC codebook would you find information regarding Cables, Raceways, or Boxes ORRECT ANSWER-300.4(E) installed in or Under Roof Decking? - A SS SS SS A SS oo ll When calculating the branch circuit load for a counter mounted cooking unit and not more than two wall mounted ovens that are supplied from a single branch circuit and located in the same SORRECT ANSWER-Add the two nameplate noc 4 stales that you can do what’ room, 220 ratings and treat it as one range When sizing type NM cable conductors in 220.15(B)(16), what temperature rating column do you always use? - CORRE! Diree| and allornating current differ in thal alternating current - CO. at intervals Luminaires containing a metal halide lamp (other than a thick glass PAR lamp) shall be provided with a containment barrier that encloses the lamp, or shall be provided with a containment barrier that encloses the lamp, or shall be provided with a physical means that only allow the use of a- CORRECT. The ampacity adjustment factors for conductors in section 310.13(B)(3a) of the NEC are not required Lo be applicd when the conductors are installed in a metal wireway unless the number of current carrying conductors within the wireway exceeds - CORE) pounds shall be supported Ceiling suspended (paddle) fans weighing MORE than -70 pounds The comection belween the grounded circuit conductor and the equipment grounding conductors at the electrical service is recognized as the in the NEC - CORRECT AN ac Where can you find construction specifications for recessed luminaries installed in suspended ceilings? - CORRECT ANSWER-410. 36(B) A SS SS SS ac