Lập kế hoạch & Dự toánCâu 372 / 521
What is the minimum number of 20 A small-appliance branch circuits required to serve the kitchen, dining, and similar areas of a dwelling?
a.2
b.1
c.3
d.4
Giải thích
At least two 20 A small-appliance branch circuits are required for the kitchen, pantry, dining room, and similar areas. One is insufficient, and while more may be installed, two is the code minimum.
Trích dẫn luật: 2023 NEC §210.11(C)(1)Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The optional calculation method of 220.82 may be used for a dwelling served by a single 120/240 V feeder or service rated at least how many amperes?
- A 1,500 ft² dwelling's standard-method calculation yields 13,100 VA on 240 V (about 55 A). What is the minimum service disconnect rating required?
- When four or more fastened-in-place appliances (other than the range, dryer, space heating, and air conditioning) are on the same feeder in a dwelling, what demand factor may be applied to their total nameplate load?
- What unit load per square foot is used for general lighting in a dwelling unit?
- Which loads may be added to the general lighting load and then subjected together to the 220.42 general-lighting demand factors?
- A dwelling has 9,000 VA of electric heating and 6,000 VA of air conditioning that cannot operate at the same time. What value is included in the service calculation?
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