Question 12027 of 790 · California General Electrician Exam
Optional 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?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 12027
- C: 22,200 VA
Explanation
General loads = 28,500 VA, so 10,000 VA + 40 % of 18,500 VA = 17,400 VA (220.82(B)). Four or more separately controlled heating units count at 40 %: 12,000 x 0.40 = 4,800 VA, which exceeds the 4,000 VA AC (220.82(C)). Total 22,200 VA.
More questions: Load Calculations
- 12032A dwelling has one electric dryer rated 3,800 W. What load must be used for it in the NEC 2020/2023 service calculation?
- 12077Under the NEC 2023, a 24 A, 240 V EVSE (nameplate 5,760 VA) is added to a dwelling. What EVSE load is used in the load calculation?
- 12078Under the NEC 2023, what load is used for a 40 A, 240 V EVSE with a 9,600 VA nameplate rating?
- 12089A dwelling feeder includes a 6.4 kW range demand. What neutral load is assigned to it under the NEC 2020 or 2023?
- 12090A 120/240 V service has a maximum unbalanced load of 280 A. What neutral load is used under the NEC 2020 or 2023?
- 12091Under the NEC 2020 or 2023, which load is left out of a dwelling neutral calculation?