Journeyman Electrician's Load Calculations 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.
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According to NEC Table 220.12, what is the unit lighting load for a dwelling unit?
Answer: 3 VA/sq ft
NEC Table 220.12 specifies 3 VA per square foot as the unit lighting load for dwelling units.
Per NEC 220.52(A), what is the minimum number of 20-ampere small appliance branch circuits required for a dwelling unit?
Answer: 2
NEC 220.52(A) requires at least two 20-ampere small appliance branch circuits for the kitchen, pantry, dining room, and similar areas.
Per NEC 220.52(B), what is the standard load used for the laundry branch circuit in a dwelling unit load calculation?
Answer: 1,500 VA
NEC 220.52(B) assigns a 1,500 VA load for the laundry branch circuit in dwelling unit calculations.
What demand factor does NEC Table 220.42 assign to the first 3,000 VA of general lighting load in a dwelling unit?
Answer: 100%
NEC Table 220.42 requires the first 3,000 VA of dwelling lighting load to be calculated at 100% demand with no reduction allowed.
A dwelling unit has 1,500 square feet of living space. What is the calculated general lighting load before demand factors are applied?
Answer: 4,500 VA
1,500 sq ft × 3 VA/sq ft = 4,500 VA per NEC Table 220.12.
According to NEC Table 220.55, what is the demand load for a single household electric range with a 12 kW nameplate rating?
Answer: 8 kW
NEC Table 220.55, Column C allows 8 kW demand for a single range rated over 8¾ kW through 12 kW.
Which NEC article covers branch-circuit, feeder, and service load calculations?
Answer: Article 220
NEC Article 220 is dedicated entirely to branch-circuit, feeder, and service load calculations.