Journeyman electrician 4 - Study guides, Class notes & Summaries

Journeyman Electrician CH #4 Assessment Test Questions and Answers Class 3 single-conductors shall NOT be smaller than _____. a) 18 AWG b) 16 AWG c) 14 AWG d) 20 AWG - Answer-A: 18 AWG Ref: 725.179(H) Given: an office building has a 208Y/120 volt, three-phase service with a balanced net computed load of 90 kVA. What is the current each ungrounded conductor carries at full load? a) 188 amperes b) 250 amperes c) 433 amperes d) 750 amperes - Answer-B: 250 amperes Ref: Trade an...

Journeyman Electrician Exam 1 - Q & A When a pull box contains conductors of size 4 AWG and larger and a straight pull of the conductors is to be made, the length of the box shall NOT be less than _____ times the trade diameter of the largest conduit entering the box. a) six b) four c) eight d) twelve Ref: 314.28(A)(1) In general, all of the following wiring methods listed are permitted to be used as a feeder for temporary wiring on a construction site EXCEPT _____. a) NM cable b) NMC cable c)...

Journeyman electrician exam prep 2024 What table sizes bonding jumpers for for AC systems? -Answer-250.102(C)(1) The NEC defines continuous load to be a load where max current on the circuit continues for at least how many hours? -Answer-Three To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than how many current carrying conductors in a raceway? -Answer-Greater than three Where in the NEC codebook would you find EMT sizes for a given size and number of conduc...

Journeyman Electrician #4 Exam Questions and Answers Where conduits enter a floor-standing switchboard or panelboard at the bottom, the conduits including their end fittings, shall not rise more than _____ above the bottom of the enclosure. a) 6 inches b) 4 inches c) 2 inches d) 3 inches -Answer-D: 3 inches Ref: 408.5 When installed on the service of a building or structure, a type 2 SPD (TVSS) shall be connected _____. a)on the line side of the service disconnect overcurrent device ...

Journeyman Electrician Exam 4 - Q & A When grounding the structural reinforcing steel of a swimming pool, what is the smallest size grounding conductor permitted for this installation? a) 12 AWG b) 10 AWG c) 8 AWG d) 6 AWG Ref: 680.26(B)(1)(a) and (b) A surge-protective device (SPD) is a protective device for _____. a) limiting transient voltage by diverting or limiting surge current b) limiting transient voltage by absorbing and storing excessive surge current c) switching transient voltage b...

Journeyman Electrician Exam Prep What table sizes bonding jumpers for for AC systems? - 250.102(C)(1) The NEC defines continuous load to be a load where max current on the circuit continues for at least how many hours? - Three To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than how many current carrying conductors in a raceway? - Greater than three Where in the NEC codebook would you find EMT sizes for a given size and number of conductors? - Annex C...

Journeyman Electrician Exam 2024 (Grade A+) Where K=12.9, what is the approximate voltage-drop on a circuit where an 80-ampere, 240-volt, single-phase load is supplied with size 3 AWG copper conductors with THWN insulation, and placed 200 feet from a panelboard? *Chapter 9 tables, table 8 conductor properties (pg. 70-689) -Answer-7.84 volts voltage-drop formula VD=2KID VD=2 x 12.9 x 80amps x 200ft. =7.84 CM 52.620 CM Given the following information, what is the maximum approximate dista...

Journeyman Electrician | Questions and Correct Answers | Latest Update 2024/2025 For other than one-and two-family dwellings, when building a new electrical service, at least one (1) 125-volt, single-phase, 15- or 20- ampere-rated receptacle outlet shall be located within at LEAST _____ of the electrical service equipment? - Answer -50 feet The ampacity of a conductor is defined by the NEC to be the maximum current, in amperes, a conductor can carry continuously under the conditions of ...

Journeyman Electrician Exam 3 Where a water pipe passes over an indoor motor control center, leak protection apparatus shall have a MINIMUM clearance of _____. a) 6 feet to the protection apparatus b) 6 feet to the water pipe c) 6 1⁄2 feet to the protection apparatus d) 6 1⁄2 feet to the water pipe - A: 6 feet to the protection apparatus Ref: 110.26(F)(1)(a) Branch circuit grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at LEA...

Journeyman Electrician 5 Exam Questions with Correct Answers Unless listed and identified otherwise, terminations and conductors of sizes 14 AWG through 1 AWG shall be rated at _____. a) 75°C b) 75°F c) 90°C d) 60°C - Answer-D: 60°C Ref: 110.14(C)(1)(a)(1) The MINIMUM size copper equipment bonding jumper on the supply side of a service consisting of parallel copper phase conductors with a total circular mil area of 2000 kcmil shall be ____. a) 2/0 AWG b) 3/0 AWG c) 4/0 ...