Journeyman electrician 4 - Study guides, Class notes & Summaries

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 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...

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...

Journeyman Electrician Practice Exam #7 Questions And Answers Where the outer sheath of Type MI cable is made of steel _____________. A. it shall provide an adequate path to serve as an equipment grounding conductor B. a separate equipment grounding conductor shall be provided C. the grounding and grounded conductors shall be connected together D. it shall not be longer than 6 feet - answerB. a separate equipment grounding conductor shall be provided The interior of enclosures or raceway...

Journeyman Electrician #1 Exam Questions and Answers 100% Solved A listed instantaneous water heater shall be permitted to be subdivided into circuits protected at NOT more than _____. a) 60 amperes b) 100 amperes c) 120 amperes d) 150 amperes - answerD: 150 amperes Ref: 422.11(F)(3) The interior of enclosures or raceways installed underground shall be considered to be a _____. a) wet location b) damp location c) moist location d) dry location - answerA: wet location Ref: 300.5(B) ...

Journeyman Electrician Study Exam Questions And Answers 100% Verified Open conductors shall be supported on glass or porcelain knobs, 1. strain insulators 2. brackets 3. racks 1 only, 2 only, 3 only, 1,2,or 3 - answer1,2 or 3 Which of the following is true concerning type NM cable? a. it may be installed where exposed to corrosive fumes b. it may be fished in air voids in masonry block or tile walls c. it may be embedded in masonry, concrete, or plaster d. it may be covered with plaster...

Journeyman Electrician Final Exam Questions and Answers 100% Solved When determining the initial standard size time-delay fuse for branch-circuit, short-circuit, and ground-fault protection for a threephase, continuous duty, squirrel cage, AC motor, the fuse shall have a rating of _____ of the FLC of the motor. When the value determined does not correspond to a standard ampere rating, the next higher standard rating shall be permitted. a) 175 percent b) 150 percent c) 225 percent d) 250...

Journeyman Electrician Practice Test Complete Questions And Answers With Latest Quiz 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 sy...

Journeyman Electrician #1 Exam Questions and Answers 100% Solved A listed instantaneous water heater shall be permitted to be subdivided into circuits protected at NOT more than _____. a) 60 amperes b) 100 amperes c) 120 amperes d) 150 amperes - answerD: 150 amperes Ref: 422.11(F)(3) The interior of enclosures or raceways installed underground shall be considered to be a _____. a) wet location b) damp location c) moist location d) dry location - answerA: wet location Ref: 300.5(B) ...

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 ...