Journeyman electrician 4 - Study guides, Class notes & Summaries

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 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 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 Practice Test Exam Questions and Answers 100% Solved Conductors with _____ marked on the insulation are NOT approved for use in a wet location. - THHN conductors with THHN insulation are approved for use in dry and damp locations only and conductors with THWN, THHW, and THW insulation are recognized for use in dry and wet locations. Given: A one-family dwelling unit with a demand load of 200 amperes is supplied with a 120/240 volt, single-phase, electrical system ...

Journeyman Electrician Exam 2024 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 use without exceeding ______? -Answer-it's temperatur...

Journeyman Electrician Test 2024 If you must guess on an exam question, most of the time the answer is... -Answer-B or C As a general rule, an insulated equipment grounding conductor of a branch circuit shall be identified by which color? -Answer-Green An emergency electrical disconnect provided for a gasoline motor. fuel dispensing pump must be located not more than _______ from the fuel dispensing device it serves. - Answer-100 feet A building or other structure served shall be supplie...

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 ...

Journeyman Electrician Practice Test Conductors with _____ marked on the insulation are NOT approved for use in a wet location. - THHN conductors with THHN insulation are approved for use in dry and damp locations only and conductors with THWN, THHW, and THW insulation are recognized for use in dry and wet locations. Given: A one-family dwelling unit with a demand load of 200 amperes is supplied with a 120/240 volt, single-phase, electrical system from the local utility company. Wha...

Journeyman Electrician Exam Questions with Correct Answers 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 use without exceeding ____...

Journeyman Electrician Practice Exam with Complete Solutions 100% Verified What is the minimum size secondary conductor required for a 2 wire 480 volts/ 120 volts transformer rated at 2.3 KVA with 750C temperature at terminals? 8 AWG 10 AWG 12 AWG 14 AWG - answer14 AWG Secondary transformer current = 2300 / 120 = 19.16 amperes Refer: NEC Table 310.15(B)(16) The suitable conductor is 14 AWG with 20 amperes capacity at 750C What is the demand factor applied in calculating feeder or serv...