Journeyman Electrician's Branch Circuits Flashcards
7 cards from real Journeyman Electrician’s Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Journeyman Electrician's Branch Circuits flashcards as text
What is the maximum allowable cord-and-plug connected load on a 15-ampere receptacle outlet?
Answer: 12 amperes
NEC 210.21(B)(2) limits the load on a 15-ampere receptacle to 12 amperes (80% of rating) for cord-and-plug connected loads.
A branch circuit supplying a 10 kW, 240-volt electric range in a dwelling unit must have conductors rated at least:
Answer: 40 amperes
Per NEC Table 220.55 and 210.19, a 10 kW range requires a minimum 40-ampere circuit with 8 AWG copper conductors.
Which type of branch circuit is permitted to supply fixed electric space heating equipment?
Answer: Individual or general-purpose branch circuit, per NEC
NEC 424.3 allows fixed electric space heating to be supplied by either an individual or general-purpose branch circuit.
For a branch circuit supplying show window lighting in a commercial occupancy, the NEC requires a load calculation of at least:
Answer: 180 VA per linear foot
NEC 220.14(G) requires show window lighting to be calculated at 180 VA per linear foot of show window.
A 15-ampere, 125-volt duplex receptacle on a 20-ampere circuit is permissible when:
Answer: Two or more receptacles are on the circuit
NEC 210.21(B)(3) permits 15-ampere receptacles on a 20-ampere circuit when two or more receptacles are installed.
According to NEC 210.52, the maximum spacing between receptacle outlets along a wall in a dwelling unit living room is:
Answer: 12 feet
NEC 210.52(A)(1) requires receptacles to be placed so no point along any wall is more than 6 feet from a receptacle, meaning spacing cannot exceed 12 feet between receptacles.
A bathroom branch circuit in a dwelling unit that serves only bathroom receptacles must be rated:
Answer: 20 amperes
NEC 210.11(C)(3) requires at least one 20-ampere branch circuit for bathroom receptacle outlets.