Lập kế hoạch & Dự toánCâu 365 / 521
How often is a new edition of the National Electrical Code, on which the California Electrical Code is based, normally published?
a.Every 2 years
b.Every 3 years
c.Every 5 years
d.Every 10 years
Giải thích
The NEC is revised on a three-year cycle (e.g., 2017, 2020, 2023), and California adopts it with state amendments on a similar cycle. The other intervals do not match the code's revision schedule.
Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
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