Question 12023 of 844 · Washington 01 Journey Level Electrician Exam
A 3,200 ft2 one-family dwelling has three 20 A small-appliance circuits and one laundry circuit. Under the NEC 2020/2023 standard method, what is the net demand load for these loads plus general lighting?
Exactly one answer is correct.
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Correct answer to question 12023
- C: 7,410 VA
Explanation
General lighting 3,200 x 3 VA = 9,600 VA; each small-appliance circuit counts 1,500 VA, so 3 x 1,500 + 1,500 laundry = 6,000 VA, total 15,600 VA. Demand: 3,000 VA at 100 % + 12,600 VA x 35 % = 7,410 VA (Table 220.42 in 2020, Table 220.45 in 2023).
More questions: Load Calculations
- 12024Under the NEC 2020/2023 standard method, what is the demand load for general lighting, two small-appliance circuits and one laundry circuit in a 4,500 ft2 dwelling?
- 12025Optional method (NEC 2020/2023): a 2,000 ft2 dwelling has two small-appliance circuits, one laundry circuit, a 12 kW range, a 5 kW dryer, a 1,200 VA dishwasher and a 4,500 W water heater. What is the calculated general load (heating and AC excluded)?
- 12026Optional method (NEC 2020/2023), 120/240 V service: 1,800 ft2 dwelling, two small-appliance and one laundry circuit, 11 kW range, 5.5 kW dryer, 1,000 VA dishwasher, 800 VA disposal, 4 kW water heater, 6,000 VA central AC and 8 kW central electric furnace. What is the calculated load in amperes?
- 12027Optional method (NEC 2020/2023): a 1,500 ft2 dwelling with two small-appliance and one laundry circuit, a 10 kW range, 5 kW dryer and 4.5 kW water heater has six separately controlled 2 kW baseboard heaters and a 4,000 VA AC unit. What is the total calculated load?
- 12032A dwelling has one electric dryer rated 3,800 W. What load must be used for it in the NEC 2020/2023 service calculation?
- 12089A dwelling feeder includes a 6.4 kW range demand. What neutral load is assigned to it under the NEC 2020 or 2023?